13 Chrome L80 (UNS S42000) is a quenched and tempered martensitic stainless steel offering reliable corrosion resistance in sweet (CO₂) and mildly sour (H₂S) environments up to 300°F. Qualified under API 5CT (Group 2, Grade L80, Type 13Cr), it’s ideal for downhole tubulars, packers, and subsurface equipment. Designed to meet NACE MR0175 standards, it performs well in mildly corrosive conditions, with recommended H₂S limits of 1.5 psi at pH ≥ 3.5.




