材料名稱:優質碳素結構鋼●特性及適用范圍:焊接性及冷應變塑性高,具有一定強度、硬度。塑性和韌性好。被切削性中等、淬透性、淬硬性差。淬火后低溫回火后強韌性好。無回火脆性傾向。一般用于制造重型和中型機械中負荷不大的冷沖壓件、小鍛件和機械加工小零件如墊圈、銷軸、螺栓、螺母等;進行滲碳或碳氮共滲處理后,可制造摩擦片、活塞銷和不重要的齒輪;經正火處理,可用作-20~475℃的壓力容器鍛件用鋼。焊接件、熱鍛、熱沖壓件滲碳后用作耐磨件。●化學成份:碳C:0.22~0.29硅Si:0.17~0.37錳Mn:0.50~0.80硫S:≤0.035磷P:≤0.035鉻Cr:≤0.25鎳Ni:≤0.30銅Cu:≤0.25●力學性能:抗拉強度σb(MPa):≥450(46)屈服強度σs(MPa):≥275(28)伸長率δ5(%):≥23斷面收縮率ψ(%):≥50沖擊功Akv(J):≥71沖擊韌性值αkv(J/cm&sup2):≥88(9)汝特車床料批發零售:易切削結構鋼:Y12Y12PbY15Y15PbY20Y30Y35Y40MnY45Ca15S1010S2010SPb2015S2235S2035SPb2046S2046SPb2060S2060SPb2011SMn3011SMnPb3011SMn3711SMnPb37冷鐓壓用鋼:ML04AlML08AlML10AlML15AlML15ML20AlML20ML18MnML22MnML20CrML25ML30ML40ML45ML15MnML25MnML30MnML35MnML37CrML40CrML30CrMoML35CrMoML42CrMoML20BML28BML35BML15MnBML20MnBML35MnBML37CrBML20MnTiBML15MnVBML20MnVBML10ML35ML20MnAML30CrMnSiAML16CrSiNiML20CrMoAML30CrMoAML35CrMoAML42CrMoAML38CrAML40CrNiMoAC15E2C碳素結構鋼:10#20#30#45#50#60#70#80#Q195Q215Q235Q275Q255Q295Q345Q390Q420Q46008F10F15F15Mn20Mn25Mn30Mn35Mn40Mn45Mn50Mn60Mn70MnYF35VYF40VYF45V