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In NACE MR0175, are tubulars with SMYS below 52ksi exempt of hardness testing?

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Question:

Per A.2.1.4 “Tubular products with an SMYS not exceeding 360 MPa (52ksi) and listed in Table A.2 are acceptable in the as-welded condition. For these products, hardness testing of welding procedures may be waived if agreed by the equipment user”. Is a correct interpretation that all hardness testing is being waived for tubular products with an SMYS not exceeding 52ksi in the as-welded condition if as agreed by the equipment user?

Answer:

No, tubular products listed in Table A.2 with an SMYS not exceeding 360 MPa (52 ksi) are acceptable in the as welded condition. For these products hardness testing OF WELDING PROCEDURES may be waived if agreed by the equipment user.

This question is in relation to NACE MR0175/ISO 15156-2 Annex A.2.1.4

Reference: ISO 15156 Maintenance Panel Inquiry #2006-01Q1

 

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