303

厂商 :古宇实业(上海)有限公司

江苏 苏州
  • 主营产品:
  • 铝材
  • 特殊钢
  • 特殊合金
联系电话 :13002196668
商品详细描述
303不锈钢
303不锈钢是奥氏体型易切削不锈耐磨酸钢,为改善该钢的性能,可在钢中加入不多于0.60﹪的钼,可耐烧蚀,产品良好的切削性及耐烧.耐蚀性.303不锈钢机械性能退火去应力后,抗拉515MPa,屈服205MPa,延伸率40%。不锈钢303的标准硬度HRB 90-100, HRC 20-25,注:HRB100 = HRC20                                                                 303是分别含有硫和硒的易切削不锈钢,用于主要要求易切削和表而光浩度高的场合。303不锈钢提高切削性能和抗高温粘结性能。最适用于自动车床。螺栓和螺母。    
应用范围:
石油、电子、化工、医药、轻纺、食品、机械、建筑、核电、航空航天、军工等行业!
化学成份(%):
C :≤0.15                                                                                          Si :≤1.00                                                                                           Mn :≤2.00                                                                                         P :≤0.20                                                                                               S :≥0.15                                                                                              Cr :17.00-19.00                                                                                                Ni :8.00-10.00
力学性能:
抗拉强度 σb (MPa):≥520                                                                              条件屈服强度 σ0.2 (MPa):≥205                                                                            伸长率 δ5 (%):≥40                                                                                         断面收缩率 ψ (%):≥50                                                                                  硬度 :≤187HB;≤90HRB;≤200HV
热处理规范及金相组织:
热处理规范:固溶1010~1150℃快冷。                                                                                    金相组织:组织特征为奥氏体型。 
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