AISI 302/304 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

AISI 302/304
ASTM A 313

Nominal Chemistry

Cr	17.0	-	19.0%
Ni	8.0	-	10.0%

Minimum Tensile Strength
psi x 10³

125-325

E - Modulus of Elasticity
psi x 10⁶

Design Stress % Minimum Tensile

G - Modulus in Torsion
psi x 10⁶

10.0

Maximum Operating Temperature
°F

550

Rockwell Hardness

C35-45

Density
lb/in³

0.286

Shear Modulus
c GPa

11600 80.0

Method of Manufacture
Chief Uses
Special Properties

Cold drawn, general purpose, corrosion and heat resistant. Magnetic in spring temper.

Equivalent or Common Trade Names

ASTM A313
AISI 302
QQ-W-423
UNS S30200
AMS 5688
AMS 5697
SAE J2300

*Note: All material properties are provided for general reference purposes only. We recommend you to contact Optimum Spring during the material selection process.

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