STAINLESS STEEL 17-7PH

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Introduction

1. CIVMATS
2. GRADES
3. STAINLESS STEEL 17-7PH

Overview

17-7PH Austenitic-martensitic precipitation hardening (PH) stainless steel was developed based on 18-8CrNi stainless by adding Aluminum (Al) content. Al is added for deoxidizing and grain refining in steels. 17-7PH stainless steel (SUS 631) features better corrosion resistance than general martensitic stainless steel and higher strength than common Austenite.

Features of Inox 17-7PH

17-7PH presents unstable austenitic structure after solution treatment. This kind of stainless steel features an austenitic structure under room temperature with good plastic toughness and workability. After cold working, cold treatment or heating to about 750 degrees, the austenite precipitated carbide component will change, transforming the austenitic structure into martensite. With age hardening, the second phase can be precipitated from the martensite matrix to strengthen the steel, and produce good medium temperature mechanical properties.

17-7PH features high strength, high hardness, good corrosion resistance, anti-fatigue, and workability. It is less likely to deform under high temperature. Due to the excellent steel performance, it is particularly suitable for use in aerospace industry. This special alloy is also suitable for fields that require high strength and corrosion resistance. Its spring performance remains excellent under temperature as high as 316℃.

17-7PH Applications

• 1) Engine thrust reverser component;
• 2) Stainless elastic element;
• 3) Container, conduit, spring, diaphragm, ship shaft;
• 4) Compressor disk;
• 5) Aerospace, chemical, petrochemical;
• 6) Paper;
• 7) Metal processing industries;
• 8) Others.

Tags

Grade 17-7PH, Type 17-7PH, Inox 17-7PH, AISI 17-7PH, AISI 631, SUS 631, 1.4568, UNS S17700, Acero 17-7PH.

Contact

If you want to buy 17-7PH stainless steel products, please contact the RIGHT supplier - CIVMATS to get the latest price.