What does NACE MR0175 compliance mean for pipe supply?

“NACE MR0175/ISO 15156 specifies material requirements for equipment used in H₂S-containing (sour) environments in oil and gas production. For austenitic stainless steel pipe, NACE compliance means: maximum hardness HRC 22, solution-annealed condition, carbon ≤ 0.03% for L-grades, and no cold work that could increase hardness. TOKO TECH verifies NACE compliance with hardness testing and PMI per tube.”