Carbon-coil

High Carbon Steel

High carbon steel springs are very popular due to their economical, strong, and durable nature. The Diamond Wire staff is equipped with the knowledge and expertise to facilitate in your selection of the perfect high carbon steel springs for your project.

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Material Music Wire Hard Drawn High Tensile Hard Drawn Oil Tempered Carbon Valve
ASTM A 228 A 277 A 679 A 229 A 230
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 Strength 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
Method of Manufacture Cold drawn. High and uniform tensile. Precision 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.

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