Custom Spring Manufacturer inconel.springs@made-parts.com     17-7 PH Stainless Steel - Spring Wire Properties The use of stainless spring steels has increased considerably in recent years. Several new compositions are now available to withstand corrosion. All of these materials can be used for high temperatures up to 650°F. convert to metric units 17-7 PH ASTM A 313 (631) Nominal Chemistry Cr 16.0 - 18.0% Ni 6.5 - 7.5% Al 0.75 - 1.5% Minimum Tensile Strength psi x 103 Cond CH 235-335 E - Modulus of Elasticity psi x 106 29.5 Design Stress % Minimum Tensile 45 G - Modulus in Torsion psi x 106 11.0 Maximum Operating Temperature °F 650 Rockwell Hardness C38-57 Density lb/in3 0.286 Shear Modulus c GPa 11600 80.0 Method of Manufacture Chief Uses Special Properties Cold drawn & precipitation hardened after fabrication. High strength and general purpose corrosion resistance. Slightly magnetic in spring temper. Equivalent or Common Trade Names 17-7 stainless steel UNS S17700 ASTM A313 ASTM A613 AISI 631 AMS 5678 AMS 5529 SAE J217 *Note: All material properties are provided for general reference purposes only. We recommend you to contact inconel spring during the material selection process. Are you ready to get started on your spring project? Call +86-755-29913552 Email inconel.springs@made-parts.com Request a Quotation   Phone: +86-755-29913552 • inconel.springs@made-parts.com BLK A, EAST SUN INDUSTRIAL CENTRE, 16 SHING YIP STREET, KWUN TONG HONG KONG