Steel grades and their chemical composition according to melt analysis
| Short name | Material No. | C | Cr | Mo | Ni | Miscellaneous *) |
|---|---|---|---|---|---|---|
| Ferritic steels | ||||||
| X 6 Cr 17 | 1.4016 | 0.08 | 15.5-17.5 | – | – | – |
| X 6 CrTi 17 | 1.4510 | 0.08 | 16.0-18.0 | – | – | Ti7x%C to 1.20 |
| Austenitic steels | ||||||
| X 5 CrNi 1810 | 1.4301 | 0.07 | 17.0-19.0 | – | 8.5-10.5 | – |
| X 2 CrNi 1911 | 1.4306 | 0.03 | 18.0-20.0 | 10.0-12.5 | – | |
| X 2 CrNiTi 1810 | 1.4311 | 0.03 | 17.0-19.0 | 8.5-11.5 | N 0.12 to 0.22 | |
| X 6 CrNiTi 1810 | 1.4541 | 0.08 | 17.0-19.0 | 9.0-12.0 | Ti 5 x «h.C to 0.80 | |
| X 6 CrNiNb18 10 | 1.4550 | 0.08 | 17.0-19.0 | 9.0-12.0 | Nb 10x%C to 1.00 2) | |
| X 5 CrNiMo 1712 2 | 1.4401 | 0.07 | 16.5-18.5 | 2.5-3.0 | 10.5-13.5 | – |
| X 2 CrNiMo 1713 2 | 1.4404 | 0.03 | 11.0-14.0 | – | ||
| X 6 CrNiMoTi 17 12 2 | 1.4571 | 0.08 | 10.5-13.5 | Ti 5x%C to 80 | ||
| X 2 CrNiMoN 17 13 3 | 1.4429 | 0.03 | 16.5-18.5 | 2.5-3.0 | 11.5-14.5 | N 0.14 to 0.22; S 5 0.025 |
| X 2 CrNiMo 18 14 3 | 1.4435 | 0.03 | 17.0-18.5 | 2.5-3,0 | 12.5-15.0 | S 5 0.025 |
| X 5 CrNiMo 1713 3 | 1.4436 | 0.07 | 16.5-18.5 | 2.5-3.0 | 11.0-14.0 | S 5 0.025 |
| X 5 CrNiMoN 17 13 5 | 1.4439 | 0.03 | 16.5-18.5 | 4.0-5.0 | 12.5-14.5 | N 0.12 to 0.22: S s0.025 |
| X1 NiCrMoCu 25 20 5 | 1.4539 | 0.02 | 19.0-21.0 | 4.0-5.0 | 24.0-26.0 | Cu 1.0 to 2.0 |
* Unless otherwise specified: P <=0.045%, S<= 0.30%, Si<= 1.0%. Mn for austenitic steels <= 2.0%