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Designer and Manufacturer of Precision Springs Since 1939

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Stainless Steel Wire Springs

Stainless Steel Wire Springs

MaterialAISI 302/304AISI 31617-7 PH
 ASTM A 313ASTM A 313ASTM A 313 (631)
Nominal AnalysisCr -- 17.0 - 19.0%Cr -- 16.0 - 18.0%Cr -- 16.0 - 18.0%
 Ni -- 8.0 - 10.0%Ni -- 10.0 - 14.0%Ni -- 6.5 - 7.5%
  Mo -- 2.0 - 3.0%Al -- .75 - 1.5%
Minimum Tensile Strength125-325110-245Cond CH
   235-335
Modulus of Elasticity E282829.5
psi x 103   
Design Stress % Minimum30-404045
Tensile   
Modulus in Torsion101011
G psi x 106   
Maximum Temp. °F550550650
Maximum Temp. °C288288343
Rockwell HardnessC35-45C35-45C38-57
Method of ManufactureCold 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. Slightly magnetic in spring temper.Cold drawn & precipitation hardened after fabrication. High strength and general purpose corrosion resistance
Chief Uses   
Special Properties