AISI 420MOD Modified Round Bar 13Cr 80ksi Pipes This specification pertains to 13% Chromium Stainless Steel bar and tubing with minimum yield strength of 80 Ksi.Tubular products meeting the requirements of API 5CT L80 meet the requirements of this specification.The 13% Chromium Stainless Steels are used primarily for downhole applications where wet CO2 is present; this material, though listed in NACE MRO175, has limited resistance to cracking in H₂S containing environments.contact forwell energy equipment for further round bar request.Melt Practice: Steels made to this specification shall be electric furnace melted, fully killed and ladle refined and/or vacuum degassed. The steel shall be produced using melt and refining practices proven capable of producing fine grained steels which are free from deleterious defects. The steel may be either ingot cast or continuous cast.
