NACE MR0175 / ISO 15156
Materials for use in H₂S-containing environments in oil and gas production
Sets the requirements for metallic materials used in oil and gas production equipment exposed to H₂S (sour service), to resist sulphide stress cracking and stress-corrosion cracking.
- Quality & service
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
What to know before ordering to NACE MR0175 / ISO 15156
The points that decide whether material to NACE MR0175 / ISO 15156 is accepted at inspection.
- Each alloy family has hardness and environmental limits; compliance is material- and condition-specific.
- Duplex, 825, 625 and C276 each have their own tables of acceptable conditions.
- Ask for the compliance statement on the certificate when you order.
How NACE MR0175 / ISO 15156 fits into an order
A purchase order line is only complete when it names the material standard, the dimensional standard and the inspection document. Miss one and the mill, the inspector and the buyer can each read the order differently.
NACE MR0175 / ISO 15156 — questions buyers ask
What does NACE MR0175 / ISO 15156 cover?
Sets the requirements for metallic materials used in oil and gas production equipment exposed to H₂S (sour service), to resist sulphide stress cracking and stress-corrosion cracking.
Do you supply certificates to this standard?
Yes. Material is supplied with mill test certificates to EN 10204 3.1 showing the standard, grade and heat number; 3.2 with third-party inspection on request.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026