The “Super 13 Cr” family of martensitic stainless steels offer enhanced mechanical properties allied to higher corrosion resistance than standard 13 Cr or 420 Mod grades. The 95 KSI strength level is approved for NACE MR0175 applications in the current revision of the standard. The low carbon content also offers improved weldability compared with standard 13 Cr grades.
The 110ksi strength level is also widely used, and for both strength levels some specific end-user approvals are often required, which Howco is well placed to advise on.
This stainless steel is available in bar and tube form. It is often used for completion equipment. Its main application is in environments containing CO2, chlorides and low concentrations of H2S.
