Chemical composition of stainless steels to BS EN 10088-2
Introduction
BS EN 10088-2 is the material standard for stainless steel sheet, plate and strip for general purposes. Ferritic, martensitic, precipitation hardening, austenitic and austenitic-ferritic (duplex) grades are included. The chemical composition of all the grades of stainless steel covered in the standard are listed.
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The data given is not intended to replace that shown in individual standards to which reference should always be made.
BS EN 10088-2 chemical composition tables
| Designation | Chemical composition % by mass max unless stated | ||||||||||
| Steel name | Steel number | C | Si | Mn | P | S | N | Cr | Mo | Ni | Others |
| Ferritic stainless steels – standard grades | |||||||||||
| X2CrNi12 | 1.4003 | 0.030 | 1.00 | 1.50 | 0.040 | 0.015 | 0.030 | 10.50/12.50 | – | 0.30/1.00 | – |
| X2CrTi12 | 1.4512 | 0.030 | 1.00 | 1.00 | 0.040 | 0.015 | – | 10.50/12.50 | – | – | Ti: 6(C+N)/0.65 |
| X6CrNiTi12 | 1.4516 | 0.080 | 0.70 | 1.50 | 0.040 | 0.015 | – | 10.50/12.50 | – | 0.50/1.50 | Ti: 0.05/0.35 |
| X6Cr13 | 1.4000 | 0.080 | 1.00 | 1.00 | 0.040 | 0.015 | – | 12.00/14.00 | – | – | – |
| X6CrAl13 | 1.4002 | 0.080 | 1.00 | 1.00 | 0.040 | 0.015 | – | 12.00/14.00 | – | – | Al: 0.10/0.30 |
| X6Cr17 | 1.4016 | 0.080 | 1.00 | 1.00 | 0.040 | 0.015 | – | 16.00/18.00 | – | – | – |
| X3CrTi17 | 1.4510 | 0.050 | 1.00 | 1.00 | 0.040 | 0.015 | – | 16.00/18.00 | – | – | Ti: 4(C+N)+0.15/0.80 |
| X3CrNb17 | 1.4511 | 0.050 | 1.00 | 1.00 | 0.040 | 0.015 | – | 16.00/18.00 | – | – | Nb :12C/1.00 |
| X6CrMo17-1 | 1.4113 | 0.080 | 1.00 | 1.00 | 0.040 | 0.015 | – | 16.00/18.00 | 0.90/1.40 | – | – |
| X2CrMoTi18-2 | 1.4521 | 0.025 | 1.00 | 1.00 | 0.040 | 0.015 | 0.030 | 17.00/20.00 | 1.80/2.50 | – | Ti: 4(C+N)+0.15/0.80 |
| Ferritic stainless steels – special grades | |||||||||||
| X2CrTi17 | 1.4520 | 0.025 | 0.50 | 0.50 | 0.040 | 0.015 | 0.015 | 16.00/18.00 | – | – | Ti: 0.30/0.60 |
| X2CrMoTi17-1 | 1.4513 | 0.025 | 1.00 | 1.00 | 0.040 | 0.015 | 0.015 | 16.00/18.00 | 1.00/1.50 | – | Ti: 0.30/0.60 |
| X6CrNi17-1 | 1.4017 | 0.080 | 1.00 | 1.00 | 0.040 | 0.015 | – | 16.00/18.00 | – | 1.20/1.60 | – |
| X6CrMoNb17-1 | 1.4526 | 0.080 | 1.00 | 1.00 | 0.040 | 0.015 | 0.040 | 16.00/18.00 | 0.80/1.40 | – | Nb:7(C+N)+0.10/1.00 |
| X2CrNbZr17 | 1.4590 | 0.030 | 1.00 | 1.00 | 0.040 | 0.015 | – | 16.00/17.50 | – | – | Zr: >7(C+N)+0.15 Nb: 0.35/0.55 |
| X2CrAlTi18-2 | 1.4605 | 0.030 | 1.00 | 1.00 | 0.040 | 0.015 | – | 17.00/18.00 | – | – | Ti: 4(C+N)+0.15/0.80 Al: 1.70/2.10 |
| X2CrTiNb18 | 1.4509 | 0.030 | 1.00 | 1.00 | 0.040 | 0.015 | 0.045 | 17.50/18.50 | – | – | Ti: 0.10/0.60 Nb: 3C+0.30/1.00 |
| X2CrMoTi29-4 | 1.4592 | 0.025 | 1.00 | 1.00 | 0.030 | 0.010 | – | 28.00/30.00 | 3.50/4.50 | – | Ti: 4(C+N)+0.15/0.80 |
| Martensitic stainless steels – standard grades | |||||||||||
| X12Cr13 | 1.4006 | 0.08/0.15 | 1.00 | 1.50 | 0.040 | 0.015 | – | 11.50/13.50 | – | 0.75 | – |
| X20Cr13 | 1.4021 | 0.16/0.25 | – | – | 0.040 | 0.015 | – | 12.00/14.00 | – | – | – |
| X30Cr13 | 1.4028 | 0.26/0.35 | – | – | 0.040 | 0.015 | – | 12.00/14.00 | – | – | – |
| X39Cr13 | 1.4031 | 0.36/0.42 | – | – | 0.040 | 0.015 | – | 12.50/14.50 | – | – | – |
| X46Cr13 | 1.4034 | 0.43/0.50 | – | – | 0.040 | 0.015 | – | 12.50/14.50 | – | – | – |
| X50CrMoV15 | 1.4116 | 0.45/0.55 | – | – | 0.040 | 0.015 | – | 14.00/15.00 | 0.50/0.80 | – | V: 0.10/0.20 |
| X39CrMo17-1 | 1.4122 | 0.33/0.45 | – | – | 0.040 | 0.015 | – | 15.50/17.50 | 0.80/1.30 | 1.00 | – |
| X3CrNiMo13-4 | 1.4313 | 0.05 | – | – | 0.040 | 0.015 | – | 12.00/14.00 | 0.30/0.70 | 3.50/4.50 | N: >0.020 |
| X4CrNiMo16-5-1 | 1.4418 | 0.06 | – | – | 0.040 | 0.015 | – | 15.00/17.00 | 0.80/1.50 | 4.00/6.00 | N: >0.020 |
| Precipitation-hardening steels – special grades | |||||||||||
| X5CrNiCuNb16-4 | 1.4542 | 0.07 | 0.70 | 1.50 | 0.040 | 0.015 | – | 15.00/17.00 | 0.60 | 3.00/5.00 | Cu 3.00/5.00 Nb 5C/0.45 |
| X7CrNiAl17-7 | 1.4568 3 | 0.09 | 0.70 | 1.00 | 0.040 | 0.015 | – | 16.00/18.00 | – | 6.50/7.80 | Al: 0.70/1.50 |
| X8CrNiMoAl15-7-2 | 1.4532 | 0.10 | 0.70 | 1.20 | 0.040 | 0.015 | – | 14.00/16.00 | 2.00/3.00 | 6.50/7.80 | Al: 0.70/1.50 |
| Austenitic stainless steels – standard grades | |||||||||||
| X10CrNi18-8 | 1.4310 | 0.05/0.15 | 2.00 | 2.00 | 0.045 | 0.015 | 0.11 | 16.00/19.00 | 0.80 | 6.00/9.50 | – |
| X2CrNiN18-7 | 1.4318 | 0.030 | 1.00 | 2.00 | 0.045 | 0.015 | 0.10/0.20 | 16.50/18.50 | – | 6.00/8.00 | – |
| X2CrNi18-9 | 1.4307 | 0.030 | 1.00 | 2.00 | 0.045 | 0.015 | 0.11 | 17.50/19.50 | – | 8.00/10.00 | – |
| X2CrNi19-11 | 1.4306 | 0.030 | 1.00 | 2.00 | 0.045 | 0.015 | 0.11 | 18.00/20.00 | – | 10.00/12.00 | – |
| X2CrNiN18-10 | 1.4311 | 0.030 | 1.00 | 2.00 | 0.045 | 0.015 | 0.12/0.22 | 17.00/19.50 | – | 8.50/11.50 | – |
| X5CrNi18-10 | 1.4301 | 0.07 | 1.00 | 2.00 | 0.045 | 0.015 | 0.11 | 17.00/19.50 | – | 8.00/10.50 | – |
| X8CrNiS18-9 | 1.4305 | 0.10 | 1.00 | 2.00 | 0.045 | 0.015/0.35 | 0.11 | 17.00/19.00 | – | 8.00/10.00 | Cu: 1.00 |
| X6CrNiTi18-10 | 1.4541 | 0.08 | 1.00 | 2.00 | 0.045 | 0.015 | – | 17.00/19.00 | – | 9.00/12.00 | Ti: 5C/0.70 |
| X4CrNi18-12 | 1.4303 | 0.06 | 1.00 | 2.00 | 0.045 | 0.015 | 0.11 | 17.00/19.00 | – | 11.00/13.00 | – |
| X2CrNiMo17-12-2 | 1.4404 | 0.030 | 1.00 | 2.00 | 0.045 | 0.015 | 0.11 | 16.50/18.50 | 2.00/2.50 | 10.00/13.00 | – |
| X2CrNiMoN17-11-2 | 1.4406 | 0.030 | 1.00 | 2.00 | 0.045 | 0.015 | 0.12/0.22 | 16.50/18.50 | 2.00/2.50 | 10.00/12.00 | – |
| X5CrNiMo17-12-2 | 1.4401 | 0.07 | 1.00 | 2.00 | 0.045 | 0.015 | 0.11 | 16.50/18.50 | 2.00/2.50 | 10.00/13.00 | – |
| X6CrNiMoTi17-12-2 | 1.4571 | 0.08 | 1.00 | 2.00 | 0.045 | 0.015 | – | 16.50/18.50 | 2.00/2.50 | 10.50/13.50 | Ti: 5C/0.70 |
| X2CrNiMo17-12-3 | 1.4432 | 0.030 | 1.00 | 2.00 | 0.045 | 0.015 | 0.11 | 16.50/18.50 | 2.50/3.00 | 10.50/13.00 | – |
| X2CrNiMo18-14-3 | 1.4435 | 0.030 | 1.00 | 2.00 | 0.045 | 0.015 | 0.11 | 17.00/19.00 | 2.50/3.00 | 12.50/15.00 | – |
| X2CrNiMoN17-13-5 | 1.4439 | 0.030 | 1.00 | 2.00 | 0.045 | 0.015 | 0.12/0.22 | 16.50/18.50 | 4.00/5.00 | 12.50/14.50 | – |
| X1NiCrMoCu25-20-5 | 1.4539 | 0.020 | 0.70 | 2.00 | 0.030 | 0.010 | 0.15 | 19.00/21.00 | 4.00/5.00 | 24.00/26.00 | Cu: 1.20/2.00 |
| Austenitic stainless steels – special grades | |||||||||||
| X1CrNi25-21 | 1.4335 | 0.020 | 0.25 | 2.00 | 0.025 | 0.010 | 0.11 | 24.00/26.00 | 0.20 | 20.00/22.00 | – |
| X6CrNiNb18-10 | 1.4550 | 0.08 | 1.00 | 2.00 | 0.045 | 0.015 | – | 17.00/19.00 | – | 9.00/12.00 | Nb: 10xC/1.00 |
| X1CrNiMoN25-22-2 | 1.4466 | 0.020 | 0.70 | 2.00 | 0.025 | 0.010 | 0.10/0.16 | 24.00/26.00 | 2.00/2.50 | 21.00/23.00 | – |
| X6CrNiMoNb17-12-2 | 1.4580 | 0.08 | 1.00 | 2.00 | 0.045 | 0.015 | – | 16.50/18.50 | 2.00/2.50 | 10.50/13.50 | Nb: 10xC/1.00 |
| X2CrNiMoN17-3-3 | 1.4429 | 0.030 | 1.00 | 2.00 | 0.045 | 0.015 | 0.12/0.22 | 16.50/18.50 | 2.50/3.00 | 11.00/14.00 | – |
| X3CrNiMo17-13-3 | 1.4436 | 0.05 | 1.00 | 2.00 | 0.045 | 0.015 | 0.11 | 16.50/18.50 | 2.50/3.00 | 10.50/13.00 | – |
| X2CrNiMoN18-12-4 | 1.4434 | 0.030 | 1.00 | 2.00 | 0.045 | 0.015 | 0.10/0.20 | 16.50/19.50 | 3.00/4.00 | 10.50/14.00 | – |
| X2CrNiMo18-15-4 | 1.4438 | 0.030 | 1.00 | 2.00 | 0.045 | 0.015 | 0.11 | 17.50/19.50 | 3.00/4.00 | 13.00/16.00 | – |
| X1CrNiSi18-15-4 | 1.4361 | 0.015 | 3.70/4.50 | 2.00 | 0.025 | 0.010 | 0.11 | 16.50/18.50 | 0.20 | 14.00/16.00 | – |
| X12CrMnNiN17-7-5 | 1.4372 | 0.15 | 1.00 | 5.50/7.50 | 0.045 | 0.015 | 0.05/0.25 | 16.00/18.00 | – | 3.50/5.50 | – |
| X2CrMnNiN17-7-5 | 1.4371 | 0.030 | 1.00 | 6.00/8.00 | 0.045 | 0.015 | 0.15/0.20 | 16.00/17.00 | – | 3.50/5.50 | – |
| X12CrMnNiN18-9-5 | 1.4373 | 0.15 | 1.00 | 7.50/10.50 | 0.045 | 0.015 | 0.05/0.25 | 17.00/19.00 | – | 4.00/6.00 | – |
| X1NiCrMo31-27-4 | 1.4563 | 0.020 | 0.70 | 2.00 | 0.030 | 0.010 | 0.11 | 26.00/28.00 | 3.00/4.00 | 30.00/32.00 | Cu: 0.70/1.50 |
| X1CrNiMoCuN25-25-5 | 1.4537 | 0.020 | 0.70 | 2.00 | 0.030 | 0.010 | 0.17/0.25 | 24.00/26.00 | 4.70/5.70 | 24.00/27.00 | Cu: 1.00/2.00 |
| X1CrNiMoCuN20-18-7 | 1.4547 | 0.020 | 0.70 | 1.00 | 0.030 | 0.010 | 0.18/0.25 | 19.50/20.50 | 6.00/7.00 | 17.50/18.50 | Cu: 0.50/1.00 |
| X1NiCrMoCuN25-20-7 | 1.4529 | 0.020 | 0.50 | 1.00 | 0.030 | 0.010 | 0.15/0.25 | 19.00/21.00 | 6.00/7.00 | 24.00/26.00 | Cu: 0.50/1.50 |
| Austenitic-ferritic stainless steels-standard grades | |||||||||||
| X2CrNiN23-4 | 1.4362 | 0.030 | 1.00 | 2.00 | 0.035 | 0.015 | 0.05/0.20 | 22.00/24.00 | 0.10/0.60 | 3.50/5.50 | Cu 0.10/0.60 |
| X2CrNiMoN12-5-3 | 1.4462 | 0.030 | 1.00 | 2.00 | 0.035 | 0.015 | 0.10/0.22 | 21.00/23.00 | 2.50/3.50 | 4.50/6.50 | – |
| Austenitic-ferritic stainless steels-special grades | |||||||||||
| X2CrNiMoCuN25-6-3 | 1.4507 | 0.030 | 0.70 | 2.00 | 0.035 | 0.015 | 0.15/0.30 | 24.00/26.00 | 2.70/4.00 | 5.50/7.50 | Cu: 1.00/2.50 |
| X2CrNiMoN25-7-4 | 1.4410 | 0.030 | 1.00 | 2.00 | 0.035 | 0.015 | 0.20/0.35 | 24.00/26.00 | 3.00/4.50 | 8.00/8.00 | – |
| X2CrNiMoCuWN25-7-4 | 1.4501 | 0.030 | 1.00 | 1.00 | 0.035 | 0.015 | 0.20/0.30 | 24.00/26.00 | 3.00/4.00 | 6.00/8.00 | Cu: 0.50/1.00 W: 0.50/1.00 |