12Cr1MoV hot rolled steel sheet
12Cr1MoV hot rolled steel sheet
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- Commodity name: 12Cr1MoV hot rolled steel sheet
Compared with 12CrMoV alloy tube, 12Cr1MoV steel has higher oxidation resistance and thermal strength. The creep limit of 12Cr1MoV steel is very close to the endurance strength value, and has high plasticity in the case of permanent tension; the steel has good manufacturability and weldability, but it needs to be preheated to above 150℃ before welding, and it needs to be removed after welding. Stress treatment.
Product introduction
12Cr1MoV round steel has higher oxidation resistance and thermal strength. The creep limit of this steel is very close to the endurance strength value, and it has high plasticity in the case of permanent tension; the steel has good manufacturability and weldability, but it needs to be preheated to 300°C before welding and stress relief after welding. deal with. It is a steel grade widely used in high-pressure, ultra-high pressure, subcritical power station boiler superheaters, headers and main steam ducts. It still has high thermal strength and oxidation resistance at 580°C, and 12Cr1MoV steel plate has a higher durable plasticity. The production process is relatively simple, and the welding performance is good, but it is more sensitive to the normalizing cooling rate. Long-term use at 580°C will produce pearlite spheroidization.
Technical data
12Cr1MoV hot rolled steel sheet Chemical Composition
Chemical Composition (%) Steel Grade C Si Mn V Cr Mo 35CrMo 0.08～0.15 0.17～0.37 0.40～0.70 0.15～0.30 0.90～1.20 0.25～0.35 GB/T3077 12Cr1MoV alloy structure steel forged bar mechanical property：
Grade Heat Treatment Mechanical Property BH Quench Tempering Tensile Strength Yield Point Stretching Rate after Breaking Shrinkage Impact Absorption Power HB10/3000 Heat Temperature, ℃ Coolant Heat Temperature Coolant No More Than 1st Quench 2nd Quench No Less Than 12Cr1MoV 970 ― Air 750℃ Air 490 MPa 245 Mpa 22% 50% 71J 179 GB/T3077 12Cr1MoV alloy structure steel forged bar is widely used in high pressure, ultra high pressure, subcritical power plant superheater, set box etc. At 580 C, 12Cr1MoV alloy structure steel still has high thermal strength and antioxidant properties, and has high durable plasticity.
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Tianjin Bohai Metal
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