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NACE MR0175 limits for UNS R30003

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Question:

Why does NACE MR0175 / ISO 15156, Part 3 specifically demand age-hardening although age-hardening typically increases the hardness of UNS R30003? Is this because problems were reported when the material was not age-hardened, because data is only available for age-hardened material, or another reason?

Answer:

In Table A.39 the cold worked + age hardened condition of UNS R30003 was the only condition originally balloted and accepted.

This question is in relation to NACE MR0175/ISO 15156-3 Table A.39

Reference: ISO 15156 Maintenance Panel Inquiry #2009-05

Contact us to discuss the UNS R30003 NACE MR0175 in the latest revision.

 

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