Martensitic chromium steel with nickel addition. Heat treatable grade, capable of taking a mirror finish. Higher corrosion resistance compared to 13% chromium steal. Resistant to the effects of seawater, weak acids and alkaline solutions, as well as to acids having a strong, oxidizing effect such as nitric acid. Surface finish for optimum corrosion resistance: fine ground or polished.
For components subject to high mechanical and corrosive stress, e.g. screws and shafts, at operating temperatures up to approx. 752° F.
Martensitic chromium steel with nickel addition. Heat treatable grade, capable of taking a mirror finish. Resistant to the effects of seawater, weak acids and alkaline solutions, as well as to acids having a strong, oxidizing effect such as nitric acid. Surface finish for optimum corrosion resistance: fine ground or polished.
| Market grade | DIN |
|---|---|
| 431 | 1.4044 |
| C | Si | Mn | P | S | Cr | Ni | |
|---|---|---|---|---|---|---|---|
| 0.12 to 0.20 | max. 1.0 | max. 1.0 | max. 0.035 | max. 0.025 | 15.0 to 18.0 | 2.00 to 3.00 |
