17-7PH Stainless Steel Bar
Medium corrosion resistance.
We stock 17-7PH stainless steel bars, which combine medium corrosion resistance with excellent mechanical properties.
17-7PH is an American-grade precipitation-hardening stainless steel suitable for applications requiring excellent mechanical properties and medium corrosion resistance. The chromium-nickel-aluminium stainless steel offers an attractive combination of hardness and high strength with excellent fatigue resistance. The alloy provides good formability with minimum distortion after heat treatment. Hard-drawn 17-7 PH wire is a perfect spring material, particularly in manufacturing flat springs. When the wire is heat-treated at 482°C (900°F), the material takes on elastic characteristics, resulting in a perfect wire for musical instruments or springs.
Aerospace
With such attractive performance characteristics, the alloy is popular in aerospace applications. Formability is good, but work hardens rapidly, so intermediate annealing may be required to produce intricate parts.
Stock Availability
Smiths Advanced Metals stocks 17-7PH steel bars and wires in the solution heat-treated (annealed) condition.
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- 1.4568
- AMS 5644
- AMS 5678
- ASTM A313
- ASTM A564
- UNS S17700
- X7CRNIAL 17-7
- Flat springs
- Musical instrument wires
- Compressor discs
- Aerospace applications
- High strength
- Good corrosion resistance
- Excellent fatigue strength
- Good formability
