17-7 Stainless Steel Sheet & Coil
Properties
.Precipitation-Hardening Stainless Steel
Type 17-7PH (S17700)
| Element | Percent by Weight Type 17-7PH |
|---|---|
| Carbon | 0.09 maximum |
| Manganese | 1.00 maximum |
| Phosphorus | 0.05 maximum |
| Sulfur | 0.03 maximum |
| Silicon | 1.00 maximum |
| Chromium | 16.00 - 18.00 |
| Nickel | 6.75 - 7.75 |
| Aluminum | 0.75 - 1.50 |
Resistance to Corrosion
Corrosion resistance of Type 17-7PH stainless steel in all heat treated conditions, like other types of stainless steels - will develop superficial rust in some environments. For example, in a marine atmosphere, stainless steels show evidence of rusting after relatively short exposure periods. However, after exposure of one or two years, the amount of rust present is little more than that present at six months. As with all martensitic steels, 17-7PH stainless steel may be subject to cracking when exposed under stress in environments containing hydrogen sulfide. Such applications are not recommended.
