SA387 Gr11Cl2 1.25Cr-0.5Mo 1.25Cr-0.5Mo-Si steel plate classification

Material classification
SA387 Gr11 steel plate: 14Cr1MoR, SA387 Gr11 Cl1, SA387 Gr11Cl2, 1.25Cr-0.5Mo, 1.25Cr-0.5Mo-Si
SA387 Gr12 steel plate: 15CrMoR, SA387 Gr12 Cl2, 1Cr-0.5Mo
SA387 Gr22 steel plate: 12Cr2Mo1R, SA387 Gr22 Cl2, 2.25Cr-1Mo
Category 2.25Cr-1Mo-0.3V: 12Cr2Mo1VR, 2.25Cr-1Mo-0.3V

CrMo steel is a kind of heat strength steel and hydrogen resistant steel widely used in the world. Due to the addition of Cr, Mo and other alloy elements in low carbon steel; The comprehensive properties of steel are greatly improved. Such as good high temperature mechanical properties, high temperature oxidation resistance, corrosion resistance, good toughness, process performance and weldability; Therefore, it is widely used to manufacture large-scale equipment with harsh service conditions and complex corrosion media, such as petrochemical industry, coal conversion, nuclear power, steam turbine cylinder, thermal power, etc.