For over 50 years, M & S Spring Company has manufactured torsion springs, compression springs, and extension springs using stainless steel wire because of its mechanical properties and corrosion resistance. We manufacture springs using several stainless steel grades including 302, 304, 316, and 17-7 PH. 17-7 stainless steel is an extremely popular grade for all applications because it offers long life under extreme environments and conditions. Our 17-7 stainless steel springs meet ASTM A 313 standards and exhibit superior fatigue properties, elasticity, and ductility. Furthermore, 17-7 springs have a high yeild strength and good corrosion resistance.

17-7 Stainless Steel Spring Types

M & S Spring manufactures several types of 17-7 stainless steel spring products including:

17-7 Stainless Steel Applications

17-7 stainless steel springs are known for their high strength and hardness. This material can withstand corrosive and high temperature environments. AISI 632 stainless steel springs are commonly used in the following industries and applications:

  • Aerospace parts
  • Chemical applications
  • Marine equipment
  • Boilers
  • Heat exchangers
  • And more!

AISI 631 Stainless Steel Spring Wire Properties

Nominal Chemistry Cr 16.0-18.0%
Ni 6.5-7.5%
Al 0.75-1.5%
Minimum Tensile Strength
psi (MPa)
Cond CH
Modulus of Elasticity
psi (MPa)
29.5 (203)
Design Stress % Minimum Tensile 45
Modulus in Torsion
psi (MPa)
11 (75.8)
Maximum Operating Temperature 650°F/343°C
Rockwell Hardness C38-57
Specifications ASTM A 313