Applications
- Aircraft and aerospace components, structures, shafts, gears, and valves.
- Parts for the petrochemical, energy, medical, and metallurgical industries.
- Elements in the nuclear industry and in chemical processes.
- Machinery parts for the pulp and paper industry.
- High-precision machinery equipment and components for corrosion-resistant engines such as pumps, shafts, spindles, and gears.
Characteristics:
- Martensitic stainless steel.
- High hardening capacity by precipitation.
- High mechanical strength and corrosion resistance under working conditions at room temperature.
- Greater corrosion resistance than 400 series stainless steels and equal resistance to 302 and 304 stainless steels.
- Supplied in annealed condition to improve machinability.
- Magnetic steel, weldable using standard practices.
Chemical Composition
| Variant | %(C) Carbono | %(Mn) Manganeso | %(Si) Silicio | %(P) Fósforo | %(S) Azufre | %(Cr) Cromo | %(Ni) Níquel | %(Cu) Cobre | %(CNb+Ta) Niobio+Tantalio |
|---|---|---|---|---|---|---|---|---|---|
| 17-4PH (Round) | 0.07% Máximo | 1.0% Máximo | 1.0% Máximo | 0.03% Máximo | 0.03% Máximo | 15.0% - 17.5% | 3.0% - 5.0% | 3.0% - 5.0% | 0.15% - 0.45% |