EN10088-1 Precipitation Hardening Steel 17-7PH Nickel Alloy Cold Drawn Bar
EN10088-1 Precipitation Hardening Steel 17-7PH/631 Stainless Steel Nickel Alloy Cold Drawn Bar
1 . Descriptions:
17-7 PH stainless steel is a precipitation hardened stainless steel that provides high strength and hardness, excellent fatigue properties, good corrosion resistance, good formability, and minimum distortion upon heat treatment. In high-heat treated conditions, 17-7PH stainless steel possesses excellent mechanical properties.
The alloy provides valuable property combinations particularly well suited for aerospace applications. This special alloy also provides benefits for other applications requiring high strength and good corrosion resistance - with excellent properties at temperatures up to 600° F.
Precision Steel Warehouse carries 17-7 PH Stainless Steel in Condition Aand Condition C. 17-7 Stainless Steel requires 3 steps in heat treating including austenite conditioning, cooling to transform the austenite to martensite, and precipitation hardening (for Condition TH & RH).
2 . Chemical Composition:
| Grade | Cr | Mn | Si | Ni | P | S | C | Al |
| 17-7PH | 16.00-18.00 | ≤1.0 | ≤1.0 | 6.50-7.75 | ≤0.04 | ≤0.03 | ≤0.09 | 0.75-1.50 |
3 . Mechanical Properties:
- Ultimate Tensile Strength psi (MPa): 130,000 (896)
- 0.2% Tensile Yield Strength psi (MPa): 40,000 (276)
- Elongation % in 2" (50mm): 35
- Hardness Rockwell: B85
4 . Applications:
- Aerospace applications
- Chemical processing equipment
- Oil and petroleum refining equipment
- Food grade stainless steel for processing equipment
- General metalworking
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