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SJones & EdStainless, Thank you for the reply. We are purchasing the material to API 6ACRA (PSL4). I do understand the difference w/ the heat treatments, and we purchase to the 120 KSI age hardened condition in order to meet the 40 HRC API requirement. I was unsure if I should expect...

Hello Gents, My customer is material compliance to NACE MR0175 / ISO 15156-3. I do have a specific H2S partial pressure, temperature, and operating pressure (environmental conditions). My question is how the actual material gets certified to the NACE / ISO spec. If I determine that the...