材料名称:优质碳素结构钢●特性及适用范围:焊接性及冷应变塑性高,具有一定强度、硬度。塑性和韧性好。被切削性中等、淬透性、淬硬性差。淬火后低温回火后强韧性好。无回火脆性倾向。一般用于制造重型和中型机械中负荷不大的冷冲压件、小锻件和机械加工小零件如垫圈、销轴、螺栓、螺母等;进行渗碳或碳氮共渗处理后,可制造摩擦片、活塞销和不重要的齿轮;经正火处理,可用作-20~475℃的压力容器锻件用钢。焊接件、热锻、热冲压件渗碳后用作耐磨件。●化学成份:碳C:0.22~0.29硅Si:0.17~0.37锰Mn:0.50~0.80硫S:≤0.035磷P:≤0.035铬Cr:≤0.25镍Ni:≤0.30铜Cu:≤0.25●力学性能:抗拉强度σb(MPa):≥450(46)屈服强度σs(MPa):≥275(28)伸长率δ5(%):≥23断面收缩率ψ(%):≥50冲击功Akv(J):≥71冲击韧性值αkv(J/cm&sup2):≥88(9)汝特车床料批发零售:易切削结构钢:Y12Y12PbY15Y15PbY20Y30Y35Y40MnY45Ca15S1010S2010SPb2015S2235S2035SPb2046S2046SPb2060S2060SPb2011SMn3011SMnPb3011SMn3711SMnPb37冷镦压用钢:ML04AlML08AlML10AlML15AlML15ML20AlML20ML18MnML22MnML20CrML25ML30ML40ML45ML15MnML25MnML30MnML35MnML37CrML40CrML30CrMoML35CrMoML42CrMoML20BML28BML35BML15MnBML20MnBML35MnBML37CrBML20MnTiBML15MnVBML20MnVBML10ML35ML20MnAML30CrMnSiAML16CrSiNiML20CrMoAML30CrMoAML35CrMoAML42CrMoAML38CrAML40CrNiMoAC15E2C碳素结构钢:10#20#30#45#50#60#70#80#Q195Q215Q235Q275Q255Q295Q345Q390Q420Q46008F10F15F15Mn20Mn25Mn30Mn35Mn40Mn45Mn50Mn60Mn70MnYF35VYF40VYF45V