Special steels for defense technology
Special steels for defense technology are alloy steels developed for demanding defense applications. They are characterised by controlled additions of elements such as nickel, chromium, molybdenum and vanadium, supporting combinations of strength, toughness, hardenability and wear resistance. They are used for heavily loaded structural, mechanical and protective components where dependable performance is required.
| Grade | Material no. | C | Si | P | S | Cr | Mn |
|---|---|---|---|---|---|---|---|
| 31NiCrMo13-4 | 1.6659 | 0,28-0,35 | 0,15-0,40 | 0,025 | 0,025 | 0,90-1,20 | 0,40-0,70 |
| 1.6722 | 1.6722 | 0,13-0,18 | 0,15-0,40 | 0,015 | 0,01 | 1,00-1,40 | 0,25-0,55 |
| 15NiCrMo16-5 | 1.6723 | 0,13-0,18 | 0,15-0,40 | 0,025 | 0,02 | 1,00-1,40 | 0,25-0,55 |
| 15NiCrMo10-6 | 1.6780 | 0,12-0,18 | 0,15-0,35 | 0,01 | 0,01 | 1,00-1,80 | 0,10-0,40 |
| 16NiCrMo12-6 | 1.6782 | 0,12-0,20 | 0,15-0,35 | 0,015 | 0,005 | 1,00-1,80 | 0,10-0,40 |
| 32NiCrMoV12-3 | 1.6943 | 0,25-0,40 | 0,10-0,35 | 0,015 | 0,015 | 0,50-1,00 | 0,40-0,70 |
| 35NiCrMoV12-5 | 1.6959 | 0,30-0,40 | 0,15-0,35 | 0,015 | 0,015 | 1,00-1,40 | 0,40-0,70 |
| 32CrMoV12-10 | 1.7765 | 0,30-0,35 | ≤0,35 | 0,025 | 0,01 | 2,80-3,20 | ≤0,60 |
Standards covering this category
4Property ranges
1| Property | Unit | Min | Max | Grades |
|---|---|---|---|---|
| rho | g/cm³ | 7.85 | 7.85 | 8 |
Derived from 8 grades in this category with a recorded value.
Composition range
15| Property | Unit | Min | Max | Grades |
|---|---|---|---|---|
| C | % | 0.12 | 0.4 | 8 |
| Al | % | 0.015 | 0.015 | 2 |
| Si | % | 0.1 | 0.4 | 8 |
| P | % | 0.01 | 0.025 | 8 |
| S | % | 0.005 | 0.025 | 8 |
| Ti | % | 0.02 | 0.02 | 2 |
| V | % | 0.03 | 0.35 | 5 |
| Cr | % | 0.5 | 3.2 | 8 |
| Mn | % | 0.1 | 0.7 | 8 |
| Ni | % | 2 | 4.3 | 7 |
| Cu | % | 0.25 | 0.25 | 2 |
| As | % | 0.025 | 0.025 | 1 |
| Mo | % | 0.2 | 1.2 | 8 |
| Sn | % | 0.03 | 0.03 | 1 |
| Sb | % | 0.025 | 0.025 | 1 |
Derived from 8 grades in this category with a recorded value.