What is the material of the 1Cr5Mo steel plate? Brief performance of 1Cr5Mo
One.1 An Introduction to the 1Cr5Mo
The metal tissue of 1Cr5Mo is martensite, with good oxidation resistance at around 650 degrees Celsius, good thermal strength below 600 degrees Celsius, and good shock absorption and thermal conductivity, which is widely used in steam turbines. But this kind of steel has a large hardening tendency, and the welding performance is poor.
Two.1Cr5Mo performs the standard
1Cr5Mo standard: GB / T 1221-1992
Three.1Cr5Mo delivery status
Generally, the delivery shall be delivered in the heat treatment standard state, and the heat treatment type is indicated in the contract: if not indicated, the delivery shall be delivered according to the non-heat treatment state.
Four.1Cr5Mo Chemical Composition:
Brand No. C: 0.15 Si: 0.50 Mn: 0.60 Cr: 4.00 ^ 6.00 Mo: 0.45 ~0. 60 Ni:
≤0.60Nb: ----- P:≤0. 030 S:≤0. 020
Five.1Cr5Mo mechanical properties
Tensile strength σ b (MPa): quenched back, 590
Condition yield strength σ 0.2 (MPa): quenched back, 390
Elongation δ 5 (%): quenching tempering, 18.
Hardness: annealed, 200 HB
Heat treatment specification and metallographic organization
Heat treatment specification: 1) quenching, 900~ 950°C oil cooling; 2) tempering, 600~ 700°C air cooling. Alographic tissue: The tissue is characterized by martensitic type.
Six.1Cr5Mo characteristics and scope of application
1Cr5Moheat resistant steel can resist corrosion generated in the process of petroleum cracking, and 1Cr5Mo heat resistant steel is used as reheat steam pipe, petroleum cracking pipe, boiler hanger, steam turbine cylinder bushing, pump parts, valves, piston rod, high pressure hydrogenation equipment components, fasteners, etc.
