304

304不锈钢:                                                                                               304不锈钢是一种通用性的不锈钢材料，防锈性能比200系列的不锈钢材料要强。耐高温方面也比较好，能高到到1000-1200度。                                                                                              304不锈钢具有优良的不锈耐腐蚀性能和较好的抗晶间腐蚀性能。对氧化性酸，在实验中得出：浓度≤65%的沸腾温度以下的硝酸中，                                                                                             304不锈钢具有很强的抗腐蚀性。对碱溶液及大部分有机酸和无机酸亦具有良好的耐腐蚀能力。
304不锈钢的
化学成分为： 　　                                                                                            C：≤0.07 ， 
Si ：≤1.0 ， 　　                                                                                             Mn ：≤2.0 ， 　　                                                                                           Cr ：18.0～19.0 ， 　　                                                                                                   Ni ：8.0～11.0， 　                                                                                                 S ：≤0.03 ， 　                                                                                                　P ：≤0.035                                                                                                  304不锈钢的性质
抗拉强度(Mpa) 520 
屈服强度(Mpa) 205-210 　　                                                                                     伸长率(%) 40% 　　                                                                                               硬度 HB187 HRB90 HV200