AMS 5678 / 17-7PH Stainless Steel Wire

AMS 5678 specification covers a corrosion-resistant steel in the form of wire. 17-7PH Stainless Steel Wire is an 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.

 

With such attractive performance characteristics, 17-7PH Stainless Steel Wire is popular in aerospace applications. Formability is good, but work hardens rapidly, so intermediate annealing may be required to produce intricate parts.