Good translation Metal Products (Shanghai) alloy structural steel companies (domestic alloy steel / alloy steel imports) 15mnvb alloy structural steel / 15mnvb steel / 15mnvb steel bar / 15mnvb Coil / 15mnvb steel / 15mnvb pipe / 15mnvb wire (good Translation Metal Products (Shanghai) Co., Ltd.) 
 15MnVB 
 15MnVB, alloy structural steel. Unified digital code: A73152 
 [] Chemical composition (mass fraction) (%) 
 C: 0.12 ~ 0.18 
 Si: 0.17 ~ 0.37 
 Mn: 1.20 ~ 1.60 
 B: 0.0005 ~ 0.0035 
 V: 0.07 ~ 0.12 
 [Mechanical properties] 
 Blank sample size (mm): 15 
 Heat treatment: 
 The first quenching temperature (℃): 860; Coolant: Oil 
 Second quenching temperature (℃): - 
 Tempering heating temperature (℃): 200; coolant: water, air 
 Tensile strength (σb / MPa): ≧ 885 
 Yield point (σs / MPa): ≧ 635 
 Elongation (δ5 /%): ≧ 10 
 Reduction of (ψ /%): ≧ 45 
 Impact absorbed energy (Aku2 / J): ≧ 55 
 Brinell hardness (HBS100/3000) (annealing or tempering condition): ≦ 207 
 [Main features] 
 This steel has inherent low-carbon steel is generally good cold formability and weldability, heat treatment and deformation hardening tendency decarbonization are small, quenching in oil completely diameter 12 ~ 18mm (> 95 ℃ martensite) ; in the static load, fatigue and multiple impact loading, the notch sensitivity and overload sensitivity is relatively low. This low-carbon martensitic steel as quenched steel, the quenching and tempering, not only have high strength and good ductility, toughness, a combination of features, but also has a low cold brittle transition temperature. 
 [Application Examples] 
 This steel can be used to replace the 40Cr steel, manufacturing requirements of high-strength bolts important, such as cars on the connecting rod bolts, cylinder head bolts, axle bolts. 
 The company offers domestic and imported alloy steel varieties, complete specifications, special specifications can be customized processing. Division I and to provide original certificates, material certificates (chemical mechanical properties) and the like arguments! Please note that request! Users are welcome to inquire Order, the Company will be free shipping! If necessary, other materials, please contact us Order. 
 Customers ordering materials, customers need to sample pieces of note, the MOQ: 50KG from (包邮) quantity excellent price, please call to order this material, our commitment to: quality assurance! Excellent and inexpensive price! Honesty! 

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