You can find different topics about stainless steel in this page and bellow here are some informations about those topics.
There are alot of different stainless steel standarts which indicates the same stainless steel grade. For example, AISI 304 stainless steel is also same with 1.4301 and this is also same with X5CrNi18-10. All these names shows the same stainless steel grade but in different countries standarts. Most widely used four standarts are: EN standard steel no, EN standard steel name, SAE grade and UNS. There are also some different standards which bellong to different countries. Here you can find some different stainless steel grades in different standards.
Stainless Steel Standards |
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GRADE (AISI) | MATERIAL NUMBER | GRADE (EN) |
303 | 1.4305 | X8CrNiS18-9 |
304 | 1.4301 | X5CrNi18-10 |
304L | 1.4307 | X2CrNi18-9 |
316 | 1.4401 | X5CrNiMo17-12-2 |
316L | 1.4404 | X2CrNiMo17-12-2 |
316Ti | 1.4571 | X6CrMoTi17-12-2 |
310 / 310 s | 1.4845 | X8CrNi25-21 |
420 | 1.4021 | X20Cr13 |
420 | 1.4028 | X30Cr13 |
420 | 1.4034 | X46Cr13 |
440M | 1.4116N | - |
431 | 1.4057 | X17CrNi16-2 |
430 | 1.4016 | X6Cr17 |
430F | 1.4105 | X6CrMoS17 |
2205 - F51 | 1.4462 (Duplex) | X2CrNiMoN22-5-3 |
4418 | 1.4418 | X4CrNiMo16-5-1 |
630 (17-4 PH) | 1.4542 | X5CrNiCuNb16-4 |
904L | 1.4539 | X1NiCrMoCu25-20-5 |
321 | 1.4541 | X6CrNiTi18-10 |
316ESR / 316LVM | 1.4441 | X2CrNiMo18-15-3 |
416 | 1.4005 | X12CrS13 |
410 | 1.4006 | X12Cr13 |
420 F | 1.4029 | X29CrS13 |
4104 | 1.4104 | X14CrMoS17 |
316L | 1.4435 | X2CrNiMo18-14-3 |
430Nb | 1.4511 | X3CrNb17 |
303 Cu | 1.4570 | X6CrNiCuS18-9-2 |
440B | 1.4112 | X90CrMoV18 |
440C | 1.4125 | X105CrMo17 |