FAQ's

What are the NACE MR0175 hardness requirements for LF2?

Does NACE MR0175/ISO 15156 Specify Hardness Requirements for ASTM A350 Grade LF2 Material?

Answer:

NACE MR0175/ISO 15156 does not dictate the hardness requirements that may be present in other standards. The standard defines material requirements and use limits as they relate to environmental cracking in the presence of H₂S.

ASTM A350 LF2 requires the hardness to be 197 HB maximum, and this meets the requirements for carbon steel forgings in NACE MR0175/ISO 15156-2. Please refer to Clause A.2.1 and the sub-clauses beneath it for carbon and low-alloy steels.

If you’re looking for information on LF2 NACE, this is the answer you need. While NACE MR0175/ISO 15156 doesn’t specify hardness requirements for ASTM A350 Grade LF2 material, it does provide valuable information on material requirements and use limits in the presence of H₂S. If you have any further questions or concerns, please don’t hesitate to reach out.

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