Ming Yuan Metal Products (Shanghai) Co., Ltd. Distribution 

 1) characteristics of Japanese the standard JISG4051-79 (94), high quality carbon steel, full of static steel manufactured by the furnace, open hearth, or oxygen converter steelmaking method, the steel microstructure uniformity, and defect. The steel's carbon content above 0.4%, excellent wear resistance, ductility to reduce quenching and easy deformation and cracking, so the heat treatment is extremely important and must quench after tempering in order to avoid the occurrence of temper brittleness. Implement through the steel ball processing can improve the cutting performance of these carbon steel. 

 (2) Availability state of hardness 137 ~ 170HBS 167 ~ 229HBS, 201 ~ 269HBS. (3) chemical composition (wt%) C 0.42 ~ 0.48, Si 0.15 ~ 0.35, Mn 0.60 ~ 0.90, P ≤ 0.030, S ≤ 0.035, Cu ≤ 0.30, Ni <0.20, of Cr ≤ 0.20 (4) reference corresponding to steel our GB / JB standard steel No. 45, the German DIN standard material number 1.0503, the French AFNOR standard steel No. CC45, the French NF standard steel of C45, Italy UNI standard steel of C45, Belgium NBN standard steel No. C45- 1, standard steel, SS, Sweden 1650, Spain UNE standard steel F.114 standard AISI / SAE 1045 steel, International Organization for Standardization ISO standard steel C45E4, Japan JIS standard steel S45C/S48C British Standard BS steel IC45/080A47. (5), quenching, tempering specification quenching temperature of 820 ℃ ~ 870 ℃, water cooling, tempering temperature of 550 ~ 650 ℃, came out very cold. Tensile strength> 686MPa, yield strength> the 490MPa the elongation δ5> 17%, shrinkage ψ> 45%, impact toughness the> 78J/cm2, hardness 201 ~ 269HB. Hotline: 57888255; Fax: 57888225; Mobile: 15221352988