Good translation Metal Products (Shanghai) alloy structural steel companies (domestic alloy steel / alloy steel imports) 25Cr2Mo1VA alloy structural steel / 25Cr2Mo1VA steel / 25Cr2Mo1VA steel bar / 25Cr2Mo1VA Coil / 25Cr2Mo1VA steel / 25Cr2Mo1VA pipe / 25Cr2Mo1VA wire (good Translation Metal Products (Shanghai) Co., Ltd.) 
 Material Name: 25Cr2Mo1VA Material Name: high quality steel 
 Standard: GB / T 3077-1999 
 Mechanical properties 
 Chemical composition 
 Carbon C :0.22-0 .29 Si Si :0.17-0 .37 
 Manganese Mn: 0.50-0.80 
 Mo Mo :0.90-1 .10 
 Chromium Cr :2.10-2 .50 
 Vanadium V :0.30-0 .50 
 Phosphorus P: 0.035 (residual content) 
 Sulfur S: 0.035 (residual content) 
 Cu Cu: 0.30 (residual content) 
 Ni-Ni: 0.30 (residual content) 
 Heat treatment specifications 
 [Heat] quenching temperature (℃): 900;, 
 Coolant: Oil-tempered heating temperature (℃): 640; coolant: air 
 Mechanical properties 
 [] Mechanical Properties Tensile strength (σb / MPa): ≧ 930 
 Yield point (σs / MPa): ≧ 785 
 Elongation (δ5 /%): ≧ 14 
 Reduction of (ψ /%): ≧ 55 
 Impact absorbed energy (Aku2 / J): ≧ 63 
 Brinell hardness (HBS100/3000) (annealing or tempering condition): ≦ 241 
 Characteristics and use of 
 Key Features 
 Heat-resistant carbon steel. High strength and toughness. Less than 500 ℃, high temperature performance is good, no hot brittle tendencies, good hardenability, machinability still, cold plastic deformation of the middle, poor welding. Generally used in the quenched state, but also in the normalizing and tempering before use. 
 Application examples 
 For the manufacture of high temperature nut (less than or equal to 550 ℃), bolts, studs (less than 530 ℃), the long-term working temperature to 510 ℃ of the fastener, the overall turbine rotor, sleeve, the main steam valve, regulating valve, but also as a nitriding steel for the production of stem, gear and so on. 
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