奥氏体马氏体铁素体奥氏体（钢的组别：A1A2A3A4A5）性能等级：50软，70冷加工，80高强度马氏体钢的组别：C1C2C3性能等级：50软，70、110淬火并回火，80淬火并回火铁素体钢的组别：F1性能等级：45软，60冷加工马氏体不锈钢属于铬不锈钢。由于含碳量高，碳化铬多，钢的耐蚀性能下降，虽可通过热处理的方法改善，但防腐性不高。马氏体不锈钢多用于制造力学性能要求较高，并有一定耐蚀性能要求的零件，如汽轮机叶片、喷嘴、阀座、量具、刃具等。铁素体不锈钢也属于铬不锈钢。含碳量小，抗大气、硝酸及盐水溶液的腐蚀能力强，有高温抗氧化性能好等特点。主要用于制作化工设备中的容器、管道。奥氏体不锈钢属于铬镍不锈钢。具有很高的耐蚀性，优良的塑性，良好的焊接性及低温韧性，不具有磁性，易加工硬化。主要用于在腐蚀介质中工作的零件、容器、管道、医疗器械以及抗磁环境中。
类钢号牌号型201201L202204国内奥研制氏体前苏型联国内研制1Cr17M
6Ni5N03Cr17M
6Ni5N1Cr18M
8Ni5N03Cr16M
8Ni2N1Cr18M
10Ni5Mo3N2Cr13M
9Ni42Cr15M
15Ni2N1Cr18M
10Ni5Mo3N1Cr17Ni71Cr18Ni9
马氏体、铁素体、奥氏体、双相不锈钢的化学成分化学成分CCrNiM
PSMoSiCu≤011600350550－≤0≤00≤1051800550750060300≤001600350550－≤0≤00≤10301800550750060300≤01170040075010≤0≤00≤105190060000060300≤001500150700903017003500≤0117004008501201900600000150250150251200140014001600370500150300800100014001600280350
N其它≤025≤025≤02－5015030020030
015030020030
≤01170040085012≤0≤00283≤1051900600000603050≤015≤0151600180017001900600≤200800800≤2001000≤0065≤0035≤0030≤0030≤100≤100
301302
f303303se304304L304N1304N2304LN305
Y1Cr18Ni9Y1Cr18Ni9Se0Cr18Ni900Cr19Ni100Cr19Ni9N0Cr18Ni10NbN00Cr18Ni10N
≤015≤015≤007≤0030≤008≤008≤0030
17001900170019001700190018002000180020001800200017001900
1Cr18Ni≤01170012219000Cr23Ni≤00220013824000Cr25Ni≤00240020826000Cr17Ni≤00160012Mo2818501Cr18Ni≤01160012Mo2Ti2190060Cr18Ni≤00160012Mo2Ti81900
309S
310S
316
316L
00Cr17N≤001600i14Mo23018000Cr17Ni≤00160012Mo2N8180000Cr17N≤001600i13Mo2N301850
316N
316N
316J10Cr18Ni≤001700
800100080010008001000800100070010507501050850115010501300120015001900220010001400110014001100140012001500100014001050r