Good translation of the Metal Products (Shanghai) alloy structural steel companies (domestic alloy structural steel / imports of alloy structural steel) 37crni3 alloy structural steel / steel plate 37crni3 / 37crni3 steel bars / 37crni3 coil / 37crni3 strip / 37crni3 steel pipe / 37crni3 wire (good Translated Metal Products (Shanghai) Co., Ltd.) 
 PROJECTILES, an alloy structural steel grades of the Chinese national standard. Unified digital code: A42372 
 Chemical composition 
 Mass fraction (%): 
 C: 0.34 ~ 0.41 
 Si: 0.17 ~ 0.37 
 Mn: 0.30 ~ 0.60 
 Cr: 1.20 ~ 1.60 
 Ni: 3.00 ~ 3.50 
 Mechanical properties 
 [Sample blank dimensions 
 25mm 
 [Heat] 
 Quenching temperature (° C): 820; coolant: Oil 
 Heating tempering temperature (° C): 500; coolant: water, oil 
 Mechanical Properties]. 
 Tensile strength (σb / MPa): ≧ 1130 
 Yield point (σs of / MPa): ≧ 980 
 ≧ 10 the Elongation (δ5 /%): 
 Section shrinkage rate (ψ /%): ≧ 50 
 Absorbed energy (Aku2 / J): ≧ 47 
 Brinell hardness (HBS100/3000) (annealing or high temperature tempered condition): ≦ 269 
 Key Features 
 With high toughness, hardenability is high, the oil cooling Φ150mm parts hardenability. Creep resistance at 450 ° for stability. Good low temperature impact toughness. Temper brittleness when tempered in the range of 450 to 550 ° C, the formation of white spots tend to be larger. Good hardenability must be normalized and high-temperature tempering to reduce hardness, improving machinability. General use in the quenched and tempered condition. 
 Application examples 
 For of manufacturing overloaded by the impact, the larger cross-section parts, or cold, the impact of parts or hot forging, hot stamping parts, such as the rotor shaft, impeller, it is important and other fasteners. 
 The company provides domestic and imported alloy structural steel varieties, complete specifications, special specifications can be customized processing. Division I and the original certificates, material certificates (chemical composition, mechanical properties) of the class parameters Please pay attention to obtain a copy of the public are welcome to the user to inquire Order, the Company will be free shipping! Other materials, if necessary, welcome to inquire Order 021 -33732011 Website: www.shyunzhe.cn Contact: Miss phone: 13818222623 
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