Good translation of the Metal Products (Shanghai) alloy structural steel company (domestic alloy structural steel / imports of alloy structural steel) 15CrMn alloy structural steel / steel plate 15CrMn / 15CrMn steel bars / 15CrMn coil / 15CrMn, steel strip / 15CrMn steel pipe / 15CrMn wire (good Translated Metal Products (Shanghai) Co., Ltd.) 
 15CrMn, an alloy structural steel grades of the Chinese national standard. Uniform digital code: A22152. 
 Standard: GB / T 3077-1988 
 JIS G4053: 2003 
 A29M: 2005 
 The ISO 683-18:1996 
 Chemical composition of mass fraction (%): 
 Carbon C: 0.12 ~ 0.18 
 Silicon Si: 0.17 ~ 0.37 
 Mn Mn: 1.10 ~ 1.40 
 Sulfur S: Allow the residual content of ≤ 0.035 
 Phosphorus P: Allow the residual content of ≤ 0.035 
 Chromium Cr: 0.40 ~ 0.70 
 Ni: to allow the residual content of ≤ 0.030 
 Cu: to allow the residual content of ≤ 0.030 
 Mechanical properties 
 [Sample blank dimensions 
 15mm 
 [Heat] 
 Quenching temperature (° C): 880; coolant: Oil 
 Tempering the heating temperature (° C): 200; coolant: water, air 
 Mechanical Properties]. 
 Tensile strength σb (MPa): ≥ 785 (80) 
 Yield strength σs (MPa): ≥ 590 (60) 
 Elongation δ5 (%): ≥ 12 
 Section shrinkage ψ (%): ≥ 50 
 Impact energy Akv (J): ≥ 47 
 The impact toughness αkv (J/cm2): ≥ 59 (6) 
 Brinell hardness (HBS100/3000) (annealing or high temperature tempered condition): ≦ 179 
 Key Features 
 Is a hardenability better carburizing steel. High surface hardness and wear resistance. Can be used in place of 15CrMo. 
 Application examples 
 For the manufacture of gears, Worm, plastic mold, turbine oil seal and steam bushings, and other. 
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