Nace Mr 0175 Iso 15156

Experts I recently inspected a SA 106 pipe for my project and I faced the following problem. Statement in our client specification for sour service: 'Material shall meet the requirements of Nace MR0175/ISO15156'. No specific statements regarding HIC/SSC test. Statement in the Material test certificate (MTC): 'Material complying NACE MR0175: ISO 15156 hardness requirements only' My interpretation after reviewing MTC: Heat treatment condition, hardness value and Sulphur content are within the limit as per NACE. Hence I accepted the material. Client interpretation after reviewing MTC: Material is not fully complying with NACE MR0175: ISO 15156 requirements (by citing hardness only statement).

Hence he rejected. Further he shown some sample pipe MTC from other pipe manufacturer with open statement ' Material complying NACE MR0175: ISO 15156'. As per my client, with that statement pipe manufacturer certifying that his product is suitable to use in wet H2S environment. Please note that my client does not insisting to do HIC/SSC tests, but he just want that statement in the MTC ' Material complying NACE MR0175: ISO 15156'. Now you experts please share your interpretation to resolve this issue. Regards Rajj RE: NACE MR0175: ISO 15156 Material conformance (Materials) 28 Jan 16 02:29.

ANSI/NACE MR0175/ISO 15156 consists of the following parts, under the general title Petroleum and natural gas industries — Materials for use in H2S- containing environments in oil and gas production: ⎯ Part 1: General principles for selection of cracking-resistant materials. Asianet Serial Harichandanam Last Episode here. ⎯ Part 2: Cracking-resistant carbon and. 2015 EDITION NACE MR0175/ISO 15156 gives requirements and recommendations for the selection and qualification of carbon and low-alloy steels, corrosion-resistant.

Check Appendix A.2.1.2 It is stated, carbon and low alloy steels are acceptable at 22 HRC maximum hardness provided they contain less than 1% mass fraction nickel, are not free-machining steels and are used in one of the following heat-treatment conditions: a) Hot-rolled b) annealed c) normalized d) normalized and tempered e) normalized, austenitized, quenched, and tempered f) austenitized, quenched and tempered In conclusion, the hardness at maximum is 22 HRC (One of the NACE requirements). The material certificate you currently have may have exceed 22 HRC. If you can, please attach the material certificate so that we can judge for you accordingly. Thanks, Jeffrey RE: NACE MR0175: ISO 15156 Material conformance (Petroleum) 28 Jan 16 05:33. A Compendium of Inquiries and Interpretations for NACE MR0175/ISO 15156: Certification and Compliance to NACE MR0175/ISO 15156 QUESTION: Is it the intent of NACE MR0175/ISO 15156-2 that material manufacturers state on the Material Test Certificates that material conforms to the NACE standard even though no operating criteria are known?

(MP INQUIRY 2006-13) ANSWER: Certification requirements are outside the scope of the standard and there are no stipulations concerning certification in NACE MR0175/ISO 15156. The compliance with the NACE/ISO standard of a material for use in H2S-containing environments in oil and gas can only be assessed for the material in its final product form and this may differ metallurgically from that of the material supplied by the materials manufacturer. In addition, compliance with the standard also depends on the cracking mechanisms that have to be considered. NACE MR0175/ISO 15156-2, Clause 9, Annex E (Informative) and NACE MR0175/ISO 15156-3, 7.2, Annex C (Informative) make some suggestions on how materials manufacturers and other suppliers might mark their materials to indicate the evaluation (testing) that they have carried out. Steve Jones Corrosion Management Consultant All answers are personal opinions only and are in no way connected with any employer. RE: NACE MR0175: ISO 15156 Material conformance (Industrial) 1 Feb 16 13:50.