Stainless Steel Spring Wire Properties
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Stainless Steel Spring Wire Properties

The use of stainless steel springs has increased considerably in recent years. Several new compositions are now available to withstand corrosion. The following materials can be used for high temperatures up to 650°F.


convert to metric units
AISI 302/304
ASTM A 313		 AISI 316
ASTM A 313		 17-7 PH
ASTM A 313 (631)
Nominal Chemistry
Cr 17.0 - 19.0%
Ni 8.0 - 10.0%
Cr 16.0 - 18.0%
Ni 10.0 - 14.0%
Mo 2.0 - 3.0%
Cr 16.0 - 18.0%
Ni 6.5 - 7.5%
Al 0.75 - 1.5%
Minimum Tensile Strength
psi x 103 		125-325 110-245 Cond CH
235-335
E - Modulus of Elasticity
psi x 106 		28 28 29.5
Design Stress % Minimum
Tensile		 30-40 40 45
G - Modulus in Torsion
psi x 106 		10.0 10.0 11.0
Maximum Operating Temperature
°F 		550 550 650
Rockwell Hardness C35-45 C35-45 C38-57
Density
lb/in3 		0.286 0.286 0.286
Method of Manufacture
Chief Uses
Special Properties		 Cold drawn, general purpose, corrosion and heat resistant. Magnetic in spring temper. Cold drawn. Heat resistant and better corrosion resistance than 302. Magnetic in spring temper. Cold drawn & precipitation hardened after fabrication. High strength and general purpose corrosion resistance. Slightly magnetic in spring temper.
*Note: All material properties are provided for general reference purposes only.
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We manufacture extension, torsion and compression springs with Stainless Steel