Saturday, December 22, 2007

My top 10 restaurants in New York

Ferrara Bakery & Café

195 Grand Street

between Mulberry & Mott Sts.

(212) 226-6150



Sushi Samba

245 Park Ave South




Asia de Cuba

Morgan Hotel

237 Madison Ave. (Midtown East/Murray Hill)

between 37th and 38th Sts.




Dawat - Indian

210 E. 58th St. (Midtown East/Murray Hill)

between Second and Third Aves.




Jai-Ya Thai

396 Third Ave. (Between 28th and 29th Streets.)

Tel: 212-889-1330




Patsy's Pizza

509 Third Ave, (between 34th and 35th streets), New York City, NY

+1 212 689 7500

also at

509 3rd Ave, New York, NY 10035 · 212-534-9783


Gallagher'S Steak House

228 West 52 Street, New York City, (212) 245-5336



Gonzalez y Gonzalez - Mexican

625 Broadway @ Houston Street

New York NY 10012

Tel 212-473-8787

Salsa Dancing in the evening


Carmine's - Italian

Theater District

200 West 44th Street

New York City

bet. 7th & 8th Aves

(212) 221-3800



Lombardi's - Pizza

32 Spring St, New York, NY 10012 ·


TRAIN: 6 to Spring St

Favorite Restaurants in Washington DC

Its Holiday time….Here is a list of my personal favorite restaurants in Washington DC.


Red Sage – Great Mexican Food

605 Fourteenth Street, NW

Washington, DC 20005

Reservations (202) 638-4444



Mr. K – Best Chinese in USA

2121 K Street NW

Washington, DC 20037




Mon Ami Gabi  - French Food

7239 Woodmont Ave.

Bethesda, MD 20814



Paparazzi Restaurant – Italian Food

1066 Wisconsin Avenue, NW

Phone: 202.298-8000


Asia Nora – Organic Food

2213 M Street,  NW



IndeBleu – Indian and French Fusion

707 G St. NW, Washington,  DC   20001

Phone: 202-333-2538

Metro: Gallery Place/Chinatown (Red, Yellow, Green lines)


The Lebanese Taverna Restaurant  - Persian Food

2641 Connecticut Ave. NW

Washington, DC, 20008

(202) 265-8681



Seasons Restaurant. – American Food

2800 Pennsylvania Avenue NW

Washington, DC 20007



OLIVES DC – Italian Food

World Center Bldg.

1600K St. NW

Washington, D.C. 20006

(202) 452-1866



Firefly, Hotel Madera  -American  Food

1310 New Hampshire Ave.

Washington, DC




Mie N Yu – Asian Food

3125 M Street, NW  Washington, DC  20007 

tel. 202.333.6122



Bangkok Joe's – Thai Food


3000 K St., NW

Washington, DC




Wednesday, December 19, 2007

SSC test with 4 point bend fixture as per NACE TM 0177 as well as the ASTM G 39 Specification

The corrosion testing laboratory of TCR in India routinely performs SSCC test with 4 point bend fixture as per NACE TM 0177 as well as the ASTM G 39 Specification. The tests are conducted using a strain gauge to measure stress. The laboratory is accredited as per ISO 17025 specification. In the past, the lab has conducted tests under third party inspection of BV, LRS, TUV etc.


TCR has been carrying out Sulphide Stress Corrosion Cracking (SSC) test for the past 10 years with tensile specimen. At several occasions, the corrosion testing department at the material testing lab of TCR have tested as per 4 point bend test and C ring specimen also.   TRC has used 4 point bend specimen under Third Party inspection of BV for Chloride Stress Corrosion Test.


The specimen for 4 point bend test shall be a flat specimen of different sizes.  We have 3 type of fixtures ready for 4 point bend test.  These can accommodate following sizes:

a)            140 x 25 x 5mm

b)            106 x 15 x 2mm

c)            63 x 4.5 x 1.68mm


These samples are prepared in our own machine shop in Mumbai, India using milling and surface grinding machines.


The technicians at the lab at TCR note the strain required to produce desired stress by loading a sample in tensile to desired stress and note the strain.  This manner enables for validation of the strain measuring and loading arrangement.  All specimen are loaded to a particular deflection which will provide some strain.


TCR has a set of 9 fixtures of each type and therefore we can load up to 9 specimens of one type at a time.  If more are fixtures are needed, we can get more fixtures made at one week's notice.  We have capacity to accommodate up to 24 specimens in our set of 3 vessels. 


In case more than 24 number of specimens need to be tested, we can always add another couple of vessel and it would increase capacity up to 40 specimens at a time. In order to add more vessels, it will take us about 2 to 3 weeks notice and in the meantime, we can proceed with machining of samples so that we are ready with specimen by the time over additional fixtures and cells are ready.  


You can send your samples to:


TCR Engineering Services Pvt. Ltd.

Attn: Sample Receipt

Plot No. EL–182, MIDC–TTC, Electronic Zone,

Behind NELCO, Mhape, NAVI MUMBAI–400 710


Tel: 27612324, 27631508, 27610921–22–23

Tel: 32936355, 65160805, 65168100

Tel: +91–(22)–65168200     Fax: +91–(22)–27612044


Please mention the following on the shipping document "Materials with no commercial value. Materials being sent for mechanical/chemical analysis and testing purposes only." You can send samples using DHL, UPS, Fedex or any local courier company. In rare circumstances, a small and nominal customs duty may be applied. If TCR pays this duty, we will apply the actual amount to your invoice.


Over the past 34 years, TCR Engineering Services has provided quality assurance and fabrication inspection services to companies in the Oil, Petro-Chemical and Natural Gas Sectors. We are India's only multi-national material testing laboratory with labs / offices in Kuwait, Saudi Arabia, Washington, Mumbai and Baroda. Over 2000+ customers trust TCR to be their quality assurance partner.


Tuesday, December 18, 2007

Happy Holidays

Happy Holidays and Best Wishes for 2008.


At TCR, we stand ready to undertake the following:

-          Third Party inspection across India using Mechanical and Metallurgical Engineers, ASNT Level II inspectors, Welding qualification inspection using AWS/CSWIP inspectors, BGAS inspectors and NDT Project Managers

-          Vendor Evaluation, Factory Audits,

-          Mechanical Testing, Chemical Analysis, Positive Material Identification (PMI), Non Destructive Testing (NDT including Automated UT using ToFD), Metallography, RoHS Compliance Testing, Corrosion Testing (including HIC/SSC), Failure Analysis Metallurgical Product Evaluation, Heat Treatment, Manpower Deployment, Training, Engineering Research and Consultancy.


Earlier this year the company has been awarded the “Excellent Laboratory Award for 2007” from NACE International (India chapter).


Do visit to know more about TCR Engineering Services.

Friday, December 07, 2007

National Symposium on Plasma Science & Technology

Institute for Plasma Research, Bhat, Gandhinagar is going to host the “22nd National  Symposium on Plasma Science & Technology” (PLASMA-2007) during  December 06 -10, 2007. It is expected that about 400 scientists and engineers working in the field of Plasma Science & Technology will attend this symposium. This symposium will provide a platform to interact with National R & D Organizations and industries for recent developments in these fields.


The technical program will comprise of invited talks, contributed oral and poster presentations in the following areas ;

·                Basic Plasma Physics (BP)

·                Nuclear Fusion & Technology (NF)

·                Plasma Diagnostics (PD)

·                Space & Astrophysical Plasma (SA)

·                Exotic Plasma : Dusty, Quark Gluon plasma etc. (EP)

·                Laser-Plasma Interaction (LP)

·                Plasma Processing and Industrial Applications (PP)

·                Simulation and modelling for Plasma (CM)

IPR : The Institute for Plasma Research (IPR) is an autonomous body of the Department of Atomic Energy dedicated to fundamental and applied research in the field of plasma physics and thermonuclear fusion and development of technologies relevant to these fields. The overall goal of pursuing thermonuclear fusion research is to develop it as a viable energy technology for future. IPR also is the domestic agency empowered to design, build and deliver advanced systems and sub-systems forming part of the multi-national thermonuclear reactor project, namely ITER, which have been assigned to India.

With over 300 scientists & engineers, IPR has, over the years, build India's first indigenous tokamak machine "Aditya" and is currently pursuing the development of superconducting steady state tokamak SST-1.

PSSI : The Plasma Science Society Of India is a three decade old professional society with more than 700 members from academic, R&D organizations as well as the industry. Based in Ahmedabad,  PSSI  provides a  common forum to the members of the plasma science & technology community in India to interact with and promote various issues related to this field.

Monday, November 19, 2007

Friday, November 16, 2007

Rohit Bafna to present paper in "Case Study of ToFD"

Mr. Rohit Bafna, Director of TCR Engineering Services will present a technical paper on "Case Study of ToFD" at the Fourth Middle East Nondestructive Testing Conference and Exhibition which is being held at the Gulf International Convention Center, Gulf Hotel in Manama, Kingdom of Bahrain. Mr. Bafna's paper will be presented on December 3, 2007 at 3:25 PM.


As a part of this paper presentation, Mr. Bafna will highlight a recent ToFD project which was done for Kuwait Oil Company (under the EPC contractor of Hyundai Heavy Industries). The scope of the project was for Detection and sizing of discontinuities in the weld joints for thickness of 19mm to 45mm shell plates located on crude oil tanks at the Crude Export Facilities at NTF, STF and MAA in Al-Ahmadi, Kuwait. Flour Daniel was the Inspection Agency on the project.


ToFD inspection project was done under the guidelines as per API 650 appendix U. Evaluation of surface flaws were further investigated by Magnetic Particle Testing as per ASME Section VIII Division 1 Appendix 6.


During the paper, Mr. Bafna will present:

- Project Planning and Crew Selection

- Details of Calibration Block

- Selection of Probes and Scanner

- Demo and Test Plans including calculation of PCS

- Reporting Formats

- On-going Documentation and creation of Database of repairs

- Challenges encountered on the project


Details of the technical program are at


TCR will also showcase all of its NDT services at the Fourth Middle East Nondestructive Testing Exhibition including Automated UT using the Time of Flight Diffraction (ToFD), Ultrasonic Testing, Magnetic Particle Testing, Helium Leak Testing, Dye Penetrant, Magnetic Flux Leakage (MFL), Positive Material Identification (PMI), In-situ Metallography (Metallographic Replication), Pre and Post Weld Heat Treatment (PWHT) and more. Senior level representatives from TCR will be on-hand at this event to answer and respond to all technical and commercial inquiries.


For more information about analytical and material testing facilities at TCR Engineering Services and her associate companies in Mumbai, Vadodara, Navi Mumbai, Saudi Arabia, Kuwait, and USA, please visit .

Tuesday, November 13, 2007

QA/QC Inspectors needed Urgently

TCR Arabia LLc. (Saudi Arabia), a division of TCR Engineering services (India) wants to urgently hire 5 QA/QC Engineers with the following job profile. Please submit your resume in MS Word Format including your salary expectation. Work site is near Jeddah, Saudi Arabia and we will provide a 6 months long contract. If the candidate is suitable then this contract period will be extended for upto 2 years. Food, Housing, Accommodation , Visa and Travel expenses will be borne by TCR Arabia. Candidate applying must provide their salary expectation as well as immediate date of availability.



To contribute to the operation of the Quality Control (QC) on site by preparing and  implementing components of Quality Controls Plans and Procedures according to Company Quality Control procedures.



·         To undertake QC functions in the workplace for daily QC activities.


·         To conduct inspection of raw materials, bought out items and review of Material Test Certificates (MTC) and the specification requirements.


·         To undertake tracking of materials according to project specifications.


·         To supervise and manage all Quality Assurance (QA)/QC functions in the workplace and manage a team of QC engineers and welding inspectors for day to day QA/QC functions


·         To coordinate with Non Destructive Examinations (NDE)  sub contractors for enquiry quotations


·         To coordinate with testing Agencies for Procedure Qualification Records (PQR) and all other required tests.


·         To interface and coordinate with clients for production and QC matters and coordinate with third party inspection agencies for all related inspection activities


·         To act as a focal and coordination point for ISO internal and external audits and to conduct internal and operation audits


·         To plan and undertake Subcontractor audits and reviews of Sub contractor  quality control programs


·         To interface and coordinate with clients for production and QC matters and coordinate with third party inspection agencies for all related inspection activities.


·         To prepare Inspection Test Plans (ITP) according to project requirements and client specifications.


·         To conduct job, painting and materials welding  inspections for daily activities.


·         To plan and conduct Subcontractor inspection activities and reviews of Sub Contractor activities.


·         To input data related to weld inspection.


·         To coordinate Non Destructive Testing (NDT) activities and review of NDT reports


·         To supervise staff for reporting, recording and inspection activities



Assessing / EvaluatingPlanningTaking info from sensesLearning / ResearchingReviewing / EvaluatingDecidingCheckingIntegrating / Coding / Estimating



·         Maintain standards of safety and comply with Company’s Health, Safety & Environment Management System requirements.

·         Take reasonable care of own health and safety and that of others in the workplace.

·         Follow and maintain Company standards of Quality in accordance with Company Quality System requirements




·         Data Analysis

·         Report writing and business and technical correspondence

·         Team leadership

·         A 4 Years Bachelors of Engineering degree in a relevant discipline.



·         CSWIP 3.1 welding inspection

·         ISO Lead Assessor Training

·         4 to 6 Years of work Experience as an Engineer with experience in ISO systems, Non destructive testing techniques, Welding techniques and inspection


To apply, please send your resumes to


Monday, November 12, 2007

Middle East Nondestructive Testing Conference and Exhibition

The Saudi Arabian Section of the American Society for Nondestructive Testing in association with The Bahrain Society of Engineers is organizing the 4th Middle East Nondestructive Testing Conference and Exhibition at the Gulf International Convention Centre, Gulf Hotel, Kingdom of Bahrain on 02 – 05 December 2007 under the patronage of H.E. Dr. Abdulhussain bin Ali Mirza, the Minister of Oil & Gas.  The Theme for the conference is “Advanced NDT Technologies: Challenges and Implementation”.


TCR Engineering Services and its associate companies will be exhibiting at the Fourth Middle East Nondestructive Testing Conference and Exhibition (4MENDT 2007). TCR Engineering Services (A leading ISO 17025 accredited independent materials testing laboratory) and TCR Advanced Engineering Services from India, TCR-KIL from Kuwait and TCR Arabia from Saudi Arabia will be based in stall # H07 at the exhibition.


 TCR will showcase its NDT services at the exhibition including Automated UT using the Time of Flight Diffraction (ToFD), Ultrasonic Testing, Magnetic Particle Testing, Helium Leak Testing, Dye Penetrant, Magnetic Flux Leakage (MFL), Positive Material Identification (PMI), In-situ Metallography (Metallographic Replication), Pre and Post Weld Heat Treatment (PWHT) and more. Senior level representatives from TCR will be on-hand at this event to answer and respond to all technical and commercial inquiries.


The theme for this conference is "Advanced NDT Solutions: Challenges and Implementations." The conference and exhibition will focus on the challenges of identifying, developing and implementing of advanced NDT technologies on the petrochemical industry facilities. The highlight of the Fourth Middle East Nondestructive Testing Conference and Exhibition will be the informative keynote address and plenary lectures by distinguished international figures in the field of NDT.


Mr. Rohit Bafna will be presenting a paper on “Case Studies for ToFD” outlining the company’s recent Automated UT using Time of Flight Diffraction projects in Kuwait and Saudi Arabia.


Mr. V.K. Bafna, Managing Director of TCR Engineering Services and Mr. Paresh Haribhakti will be presenting a poster paper at this conference on "In-Situ Metallography for Plant Health Assessment Studies and Failure Investigation."


As an NDE technique, In-situ metallography is considered important for assessing the health of the equipment, which operates under different plant conditions. The acceptance of in-situ microstructure assessment is from the fact that industry needs safe, trouble free and productive operations by adopting to predictive maintenance approach. The in-situ metallography has the strength to meet these requirements. Critical components of Oil and Petrochemical refineries, Power generation units, Fertilizers, Chemical industries are subjected to the variety of hostile environments that necessitates microstructure assessments to monitor in-service degradation.


The paper presented will allow a plant manager to understand the in-situ metallography technique in detail and assist them in conducting real-time component condition monitoring and health assessments.


Keynote Speakers:


Marwan F. Basrawi

Mr. Marwan Basrawi is a member of the ASNT Board of Directors and the founding Director of ASNT Region 19 (Middle East). He is also the founding chairman of ASNT’s Saudi Arabian Section (SAS). He continues to lead the establishment of organized and credible NDT in the region through NDT training, certification, conferencing and active ASNT sections. There are currently three ASNT Sections in the Middle East: SAS, UAE and the Egyptian Sphinx, of which the first two are already in this year’s top 15 most active sections of ASNT.



Hermann Rosen

Hermann Rosen is the Founder, Owner and President of the ROSEN Group of companies based in Switzerland . As a young engineer, he started the company over 25 years ago with a vision to be the leading partner providing sophisticated NDT solutions and services to the customers. Since then he pioneered many concepts in the NDT inspection field. He has driven the growth of the ROSEN Group from one man business to global business with more than 1000 specialists and with offices around the world. He strongly believes in ongoing R&D and embraces new technologies. High-Technology, innovation, flexibility and service minded: these are the key words by which he confronts challenges.



Charles J. Hellier

Mr. Hellier has over 45 years of experience in Nondestructive testing, Quality Assurance and Inspection.  He is a past President of ASNT and holds an ASNT Level III certificate in five NDT methods.  He is a Fellow of ASNT and also is involved with the Nondestructive Testing Management Association (NDTMA).  Chuck also holds membership in ASME, ASTM, AWS, ASM and ABFE (Fellow).



David E. Russell

Mr Russel is founder of Russell  NDE Systems Inc. offering a wide range of electromagnetic technologies to the Petrochemical, Water and Power industries.  He was Vice Chairman of the Electromagnetics Testing Committee of ASNT and assisted the Handbook Development Committee of ASNT in the development of the Nondestructive Testing Handbook, Volume 5: Electromagnetic Testing.  He holds ASNT Level III certification in RT, UT and ET and assisted the Advisory Committee for the drafting of the first ASTM Standard Practice for In-Situ Examination of  Ferromagnetic Heat-Exchanger Tubes Using Remote Field Testing, which resulted in the publication of ASTM spec E-2096.00 He developed the first commercial Remote Field Testing (RFT) system for the examination of small diameter carbon steel tubes in1984 and since has developed many tools for RFT & MFL applications.



Dr. Joseph L. Rose, Ph.D.

Dr. Rose is author of over ten patents, four textbooks, and over 380 articles on ultrasonic NDE, wave mechanics, guided waves, medical ultrasound, adhesive bonding, concrete inspection, pipe and tubing inspection, and composite material inspection. Dr. Rose has served as principal advisor to over 30 Ph.D. students. He received a variety of awards including: American Society for Nondestructive Testing achieved in 1973; Fellowship Awards in 1985, 1997, and 2000; Tutorial Citation Award in 1986; became an ASNT Fellow in 2000, and was recipient of the Mehl Honor Lecture Award in October 2001. Dr. Rose has managed over 20 million dollars in ultrasonic research and development funding with early projects primarily on signal processing and pattern recognition and most recent exclusively on guided wave analysis and application.


For more information, Please contact

Conference Secretariat

The Bahrain Society of Engineers

P.O. Box 835, Manama, Kingdom of Bahrain

Tel: +973 17 727100,

Fax: +973 17 729819




Please visit website


Friday, November 02, 2007

Prevent Lead based toys from reaching Children

TCR Engineering Services, an India based material testing and quality assurance company undertakes tests using X-Ray Florescence (XRF) portable alloy analyzers on Metals, Electronics, Soils, Mining, Minerals, Woods, Thin Films, Paints & Coatings, Oils & Liquids, and Hazardous Waste Materials.


As awareness continues to increase on the ill-effects of Lead (Pb) in day-to-day products in India and overseas, TCR Engineering Services undertakes classification of definitive positive/negative results for Pb using the portable XRF instruments. The XRF instrument of TCR can detect of lead in Paints & Coatings, Oils & Liquids. The tests are done in-situ and it can help in establishing area contamination boundaries and depth profiles including assisting in site investigations, delineation and contamination patterns.


The lead inspection service from TCR allows manufactures in India to create lead-free landfills, hazardous clean-up sites, consumer electronic materials, children's toys and jewelry, cooking or eating materials, packaging, and several other materials.


Using services from TCR, large corporation can prevent, incidents like the recent large scale toy recall reported by Mattel. Mattel, the maker of Barbie dolls and Hot Wheels cars, recalled nearly one million toys in the United States today because the products were covered in lead paint. According to Mattel, all the toys were made by a contract manufacturer in China. Speaking of the new recall, Nancy A. Nord, acting Consumer Product Safety Commission chairwoman, said in a statement, "These recalled toys have accessible lead in the paint, and parents should not hesitate in taking them away from children."


Mattel is hardly the first manufacturer to encounter a breakdown in the Chinese production chain. In recent months, factories in China have been sources of poisonous pet food sold in stores in the United States, dangerous car tires, and lead paint on the popular Thomas & Friends wooden toys.


In India, TCR is working with both small and large corporations to ensure quality products are delivered that have no hazardous substances that can hard our health, safety or the environment.



Welding Certification and Welder Qualification Services from TCR

TCR Engineering Services has expanded its quality assurance and third party inspection services to include a comprehensive welder certification and welding procedure qualification program. As part of this enhanced service offering, TCR will undertake the following:

·         Welder Qualification Testing for performance qualification and certification of welders (a welder / welding operator performance qualification - WQT) to ASME, ANSI, AWS, API code

·         Preparation of Weld Procedure Qualification as per client or project requirements.

·         Coupon Testing as per Weld Procedure Qualification which includes visual examination, mechanical testing, metallographic examination and non destructive testing.

·         Documentation of the Procedure Qualification Record as per ASME, ANSI, AWS, API codes

·         In depth weld inspection to include review of the applicable qualification e.g. weld procedure specification, welder performance qualification and validity for process materials and consumable items, equipment, set up and other factors, including certificates of calibration and/or conformity governing the work.

·         Check safety of set up and operation having due regard for self, welder and other workers in vicinity, particular in respect of ultraviolet radiation from arc during welding.


The welding inspector deployed at a site from TCR will be responsible for monitoring and verifying that the following functions of the work conform in all aspects to the specific requirements of the relevant code, specification and/or standard:

-          Check correct weld procedure(s) employed.

-          Check weld procedure and welder qualifications.

-          Inspect weld profile preparation.

-          Inspect joint fit-up

-          Check filler metals and consumable materials

-          Check correct welding performance parameters observed

-          Perform visual examination upon completion of welding

-          Monitor pre and post weld heat treatment, where specified.

-          Monitor the physical examination including non-destructive test, hydrostatic test, mechanical test etc. If needed, the inspector may choose to send test coupons to the TCR Engineering Services' material testing laboratory.

-          Ensure that all necessary visual inspection is completed and verify that all other necessary non-destructive examinations are executed in the specified manner for the method and coverage by appropriately qualified personnel.


When, and where, required the inspector shall employ the following equipment to aid in the performance of duties:

a)      Inspection mirrors.

b)      Torch or other electrical lighting facilities (permitted by safety codes eg. 24V system etc.)

c)       Physical size measuring instruments such as welding gauge, rule, vernier etc.

d)      Electrical parameter measuring instruments such as ammeter, voltmeter etc.

e)      Temperature measuring instruments (thermometer)/aids (thermo chalk).


All TCR welding inspectors are generally certified in accordance with the requirements of at least one of the following schemes - Certification Scheme for Weld Inspection Personnel (CSWIP), American Welding Society (AWS), BGAS (previously British Gas ERS), and/or ASNT Level II VT. All inspectors have the ability to interpret various standards including ASME B&PV Code, Section IX, API Std. 1104 and ANSI / AWS D1.1.


The Welding Inspection department at TCR is headed by Mr. Nilesh Pathare who has over 11 years of experience in QA /QC inspection in oil and Gas industry, Petrochemical and refineries and is qualified as a  CSWIP 3.1 Welding Inspector, AWS-CWI, BGAS- CSWIP Painting Inspector and ASNT LEVEL II UT, MT, PT, RT. He is experienced in pressure vessel fabrication (static equipment) inspection and Third Party Inspection of materials like plates, pipes, forgings, casting at a vendor's location. He also has hands on experience in NDT (UT, MT, PT) and Radiographic Film interpretation and Destructive testing of various materials.


To know more about TCR's welding or third party inspection services, please communicate with Mr. Percy Lakdavala, Project Manager  - TPI at +91-9833530600 or send an email to

NDE 2007

An exciting exhibition and conference, NDE-2007, in the field of non destructive testing and quality assurance is taking place on November 28-30, 2007 in Vadodara, India under the aegis of ISNT. TCR Engineering Services (Mumbai) and TCR Advanced Engineering (Vadodara) will be showcasing their service offering at this exhibition.


TCR, India's leading material testing, NDT and quality assurance company will showcase the company's complete range of NDT services including Automated UT using the Time of Flight Diffraction (ToFD), Helium Leak Testing, Third Party Inspection, Factory Audits, Welder Qualification, NDT Training, Infrared Thermography, Ultrasonic Testing, Magnetic Particle Testing, Dye Penetrant, Eddy Current, Positive Material Identification (PMI), In-situ Metallography (Metallographic Replication), and more.


As a committed QA partner for all major companies in the state of Gujarat, TCR extends is hearty congratulations to the Vadodara chapter of ISNT which has the unique privilege of organizing the NDE-2007 event as a part of its Silver Jubilee Year Celebrations. To celebrate this occasion, TCR will be having random prize drawings at its exhibition booth. Senior representatives of TCR from all over the world will be available on the sidelines of this exhibition to answer to specific project related queries.


We welcome you to visit us at:


Stall number: 75

Venue:  Hotel Surya Palace, Parsi Agiyari Ground, Vadodara

Date: November 28-30, 2007


Should you need any local assistance, please do not hesitate to contact Mr. Paresh Haribhakti on +91-93762 55165.


For more information about analytical and material testing facilities at TCR Engineering Services and her associate companies in Mumbai, Vadodara, Navi Mumbai, Saudi Arabia, Kuwait, and USA, please visit

Thursday, October 11, 2007

61st Annual Technical Meeting - Indian Institute of Metals (IIM)

The Indian Institute of Metals (IIM), which is the largest professional organization for metallurgists in India with over 8000 members from R&D laboratories, academia and industries, is organizing a technical meet at Nehru Centre, Mumbai during November 13-16, 2007. This Annual Technical Meet is being organized under the Chairmanship of Dr. S. Banerjee, Director, Bhabha Atomic Research Centre (BARC), who is the current President of the IIM. On this occasion, there will be a special publication on “Stainless Steels”.


Mr. V.K. Bafna and Mr. Paresh Haribhakti of TCR Engineering Services, India are presenting a paper on, “Metallurgical Investigation of blister formation on Hydrocracker Reactors of Refinery”  at this technical meet.


The Hydrocracker Reactors represents amongst the critical component of the Refinery and Petrochemical industries both in terms of cost and operation point of view. The Reactor vessel used for the hydrogenation service are made from of low alloy steels having chromium and molybdenum being typical weld overlaid with stainless steels on the inner surface of the vessel in order to protect the low alloy steel against corrosive environments such H2S and other corrosion.


One of the Refineries in the Middle East country faced the problem of blister formation on the Six Hydrocracker Reactors. There were total 102 blisters  formed inside surface of the Reactor and were formed all over the reactors surface having the small bulging with diameter of about 1" to 3".


The Hydrocracker operates at 380-445OC temperature and 112-158 bars pressure during service. The feed for the Reactors are VGO residue and hydrogen which is received from hydrogen plant.


The Metallurgical root cause investigation was undertaken both at site with visual, in-situ Metallography, hardness and ultrasonic testing. Cut samples from the blister were removed and studied for detailed metallurgical analysis in the laboratory to find out the reason as well fitness for future service of the weld overlay.


The results of filed Metallography showed presence of martensite layer at the interface with Inter-granular cracking a typical signature of hydrogen de-bonding. The laboratory testing further establish the presence of hydrogen in the weld overlay samples with the help of simple tensile testing on both as received condition and after hydrogen removal heat treatment. For future fitness of these weld overlays extensive Metallography studies were undertaken to find out the mechanism of crack formation and role of harmful phases like sigma and carbides.   With the use of quantitative Metallography the % age of these phases were evaluated to judge the overall integrity of Reactors and valuable inputs were provided for repair weld of these Reactors.


The reason for de-bonding was identified due to accumulation of hydrogen at the interface between alloy steel and stainless steel weld overlay region. Under the operating temperature and pressure hydrogen diffusion through weld overlay is inevitable. Nevertheless, slow cooling of the Reactor would facilitate hydrogen removal during shutdown. While on other hand, fast cooling will retain diffused hydrogen. Also, it can cause de-bonding between base metal and weld overlay.   This was confirmed at the Refinery was attacked in the war and shutdown was not done as per the recommended practice. The trapped hydrogen in the reactor over the time period it migrated and got accumulated at the interface and created de-bonding.


Wednesday, September 19, 2007

AUT - Time of Flight Diffraction on

TCR Engineering Services, as an NDT services company, routinely provide AUT using ToFD in India and Saudi Arabia. I wanted to give something back to the outstanding forum on and thought that one of the best ways will be to create a compilation of answers on ToFD that are so frequently asked on  I plan to update this thread as time permits so that we can all benefit from the collective wisdom of the contributors of this forum. Here are links and brief outlines to important discussions on Time of Flight Diffraction:


Sizing a Defect using ToFD

Contributor Suresh on writes:

However, over the last 20 years, TOFD has probably been used more in validations, round robin trials et cetera than any other NDT technique. From this, we have established that TOFD is probably the most accurate sizing technique for embedded defects presently available to the world. A recent test for a major oil company we did on some 30 rootcracks in thin walled material, which were compared to physical measurements after destructive testing showed a mean error on height sizing for TOFD of 0.27 mm with a standard deviation of 0.7 mm. The X-Ray results obviously did not give any height measurement. On the length measurement the accuracy of TOFD was 2.6 mm, with a standard deviation of 4.5 mm. For X-Ray the accuracy of the length measurement was -19 mm (undersized) with a standard deviation of 43.5 mm. By the way, X-Ray only revealed 55% of the cracks, whereas TOFD found 97%.


Demonstration of technique as per 2235-9

Contributor Ed Ginzel writes:

The method of sizing (vertical extent?) for CC2235-9 for examining pressure vessels with a thickness over 13 mm needs to be qualified (demonstrated).  It states in i)(3) Flaw Sizing. Flaws shall be sized in accordance with a procedure demonstrated to size similar flaws at similar material depths. Alternatively, a flaw may be sized by a supplemental manual technique so long as it has been qualified by the demonstration above.


Dead Zone Calculation

If I were to bet, this thread is the longest and most frequently asked question with respect to ToFD.

Tom Nelligan of Olympus NDT wrote:

Dead zone -- the interval following the excitation pulse in which potential exchoes are obscured by ringdown -- is a property of BOTH the probe and the instrument. The response of any transducer is highly dependent on how it its pulsed. Changing pulse energy, type (spike, square wave, or tone burst), and damping, as well as receiver gain and filtering, will have a significant effect on the excitation pulse ringdown envelope and hence on dead zone length. As others have suggested, your best approach is to simply measure it under your actual test conditions using appropriate reference blocks.


Ed Ginzel wrote

The "missed data" would be the dead zone. This is not actually a function of the wall thickness but instead, the ring time equivalent depth of the pulse. Frequency, probe spacing and angle used can all be factors. A simple calculator is provided as a download on to estimate the Dead Zone heights associated with TOFD setups.


Smallest detectable flaw using TOFD

Ed Ginzel once again has a truly informative posting where he mentions:

In clean low carbon steel I have “detected” pores on the order of 0.2mm diameter using a 5MHz TOFD. That is on the order of 5-6 times smaller than the wavelength! But when the same TOFD technique is applied to austenitic stainless steel with grain size on the order of 50-100 microns, the scatter makes it virtually impossible to detect anything but the largest of flaws. Grain size in chrome stainless steels are typical of this order of magnitude. (see

Properties of the materials tested (not just the alloy, since an alloy may be made in many forms of different grain sizes) and the purpose of the test will be critically important factors when considering the answer to your question. We can discuss “theoretical” limits to “detections”; but in UT (including and especially in TOFD) the response of the indication of concern over the background scatter noise from grain structure will be crucial. If you are expecting to RELIABLY “detect” flaws smaller than the grain size you will probably not be successful. The lateral wave will cause you problems at the lower end of thicknesses due to the dead zone (but I have seen shear wave TOFD used on 4mm wall in fine grained zirconium tubing). Thick sections (200-300mm) can also be tested by TOFD but accumulation of scatter increases with increasing soundpaths. In all cases the signal to noise ratio you can achieve will be the limiting factor for practical use of TOFD.


LoF vs. Slag when doing ToFD as per B31.3 in Piping

J. Mark Davis wrote:

LOF being a planar defect will tend to have a fast rise and fall time, and a short pulse duration. Slag is a volumetric defect and tends to have a slow rise and a long duration. Both defects can cause a beam redirection to the OD or the ID. Also, please realize that as with radiography, you can have several people look at a radiograph and make a slag or a LOF call, and sometimes not all will be in agreement. The same will hold true with UT and Phased Array. If the indication plots to the weld fusion line this probably is side wall lack of fusion. If the indication plots to the weld centerline, line this is probably Slag. Plus, you still analyze Rise and Fall and Pulse Duration.


Code Case 181

A lot people were searching for the actual code case 181 for ToFD. John O'Brien gave the URL to be as on the page


ToFD working Procedure

Rohit Bafna of TCR Engineering Services wrote:

We perform ToFD Services in India and Saudi Arabia and have a two member team. The first team member does the scanning (we are doing ToFD projects as per API 650 appendix u, Code case 181 for piping as well as code case 2235-9) while the second person has a manual UT machine with him.  Prior to the start of any project we give out two documents:

- Procedure for examination

- ToFD operating guide for inspectors which illustrates the step by step machine operations. It also includes the timelines of work during the day. For example we prefer to do the scanning in the morning and reporting in the afternoon.


I encourage others to update this posting/thread whenever they find any interesting article on ToFD. I hope over time, we can help other inspectors and fellow technicians learn and improve the usage of ToFD in the industry.

Tuesday, September 18, 2007

TCR Engineering approved by Halliburton

On completion of the audit conducted by Halliburton Company (with representatives from Houston, TX), TCR received the formal approval today. The approval notice said, “Based on our visit and audit, TCR Engineering Services has been approved and recommended for services performed for Halliburton.”


TCR is one of the select few material testing labs worldwide that have been approved by Halliburton. Suppliers and Vendors in India and elsewhere can count on the prompt and efficient services of TCR in the areas of Vendor Evaluation, Factory Audits, Third Party Inspection, Mechanical Testing, Chemical Analysis, Positive Material Identification (PMI), Non Destructive Testing (NDT including Automated UT using ToFD), Metallography, RoHS Compliance Testing, Corrosion Testing (including HIC/SSC), Failure Analysis Metallurgical Product Evaluation, Heat Treatment, Manpower Deployment, Training, Engineering Research and Consultancy.

Wednesday, September 12, 2007

NACE awards TCR the Best Laboratory Award

It gives me immense pleasure to inform you that NACE International (India chapter) has selected TCR Engineering Services (Navi Mumbai) as a recipient for the prestigious “Best Laboratory Award for 2007.”


The award ceremony is going to be held in Hotel Intercontinental in Mumbai on September 26. I’d like to share this joyous occasion with you and will be delighted if you can make your travel plans and come to India on that date.


TCR Engineering Services (TCR), a NABL and ISO 17025 accredited independent material testing laboratory in Mumbai, India undertakes a wide range of corrosion and stress corrosion test per ASTM, NACE or BIS. Tests can also be custom tailored to meet an individual client´s requirements.


TCR´s material testing laboratory in India determines inter-granular corrosion attack, weight loss corrosion, pitting corrosion, Sour gas service corrosion tests for sulfide stress cracking (SSC), CSC, salt spray, and hydrogen-induced cracking (HIC) for oil and gas, power, construction, shipping, petrochemical and process industries.

Tuesday, September 11, 2007

History of ASME B31

Author JohnBreen writes on eng-tips that that The ASME B31 Code for Pressure Piping includes specific “books” for various piping applications.  The Code is dynamic and the “sitting committees” work at keeping the Codes up to date with current standard industry practice – note, not “cutting edge”, not “trend setting”, not “latest and greatest" - rather current standard industry practice.   The B31 Codes are not the final word, only the latest word.


The history of the B31 Code is very interesting.  In 1926 the American Standards Associations, ASA (forerunner of ANSI) initiated project B31 to develop a pressure piping Code.  The resulting document, "American Tentative Standard Code for Pressure Piping, ASA B31.1 was issued in 1935.


During the long history of the B31 Codes various “book section” numbers were assigned for development.  Some of these documents were developed but not used as the work was pulled into another “book”.  Others of them were withdrawn when superseded by another document.  For completeness JohnBreen presented the following list of B31 “projects” and Codes:


B31.1 – Power Piping

B31.2 – Fuel Gas Piping, WITHDRAWN superseded by ANSI Z223.1

B31.3 – Process Piping, (formerly Chemical Plant and Petroleum Refinery Piping)

B31.4 – Liquid Hydrocarbon Transportation Piping (for example oil cross country pipelines)

B31.5 – Refrigeration Piping

B31.6 – Chemical Plant Piping, never issued as a separate document, folded into B31.3

B31.7 – Nuclear Power Piping, WITHDRAWN, superseded by ASME Code, Section III

B31.8 – Gas Transportation Piping (for example cross country gas pipelines)

B31.9 – Building Services Piping (for example office building hot water heating and air conditioning)

B31.10 – Cryogenic Piping, never issued as a separate document, folded into B31.3

B31.11 – Slurry Transportation Piping (for example cross country coal/water slurries)


Read more