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Designer and Manufacturer of Precision Springs Since 1939

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High Carbon Steel Springs

High Carbon Steel Springs

Material Music Wire Hard Drawn High Tensile Oil Tempered Carbon Valve
  ASTM A 228 ASTM A 277 Hard Drawn ASTM A 229 ASTM A 230
      ASTM A 679    
Nominal Analysis C -- .70 - 1.00% C -- .45 - .85% C -- .65 - 1.00% C -- .55 - .85% C -- .60 - .75%
  Mn -- .20 - 60% Mn -- .60 - 1.30% Mn -- .20 - 1.30% Mn -- .60 - 1.20% Mn -- .60 - .90%
Minimum Tensile Strengtd 230-399 CLI 147-283 238-350 CLI 165-293 215-240
    CLII 171-324   CLII 191-324  
Modulus of Elasticity E 30 30 30 30 30
psi x 103          
Design Stress % Minimum 45 40 45 45 45
Tensile          
Modulus in Torsion 11.5 11.5 11.5 11.5 11.5
G psi x 106          
Maximum Temp. °F 250 250 250 250 250
Maximum Temp. °C 121 121 121 121 121
Rockwell Hardness C41-60 C31-52 C41-60 C42-55 C45-49
Metdod of Manufacture Cold drawn. High and uniform tensile. High quality springs and wire forms. Cold drawn. Average stress applications. Lower cost springs and wire forms. Cold drawn. Higher quality springs and wire forms. Cold drawn and heat treated before fabrication, General purpose spring wire. Cold drawn and heat treated before fabrication. Suitable for cyclic applications.
Chief Uses          
Special Properties