Optimum Spring manufactures extension, torsion and compression springs with Carbon Valve - ASTM A 230 - Spring Wire Properties
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Carbon Valve - ASTM A 230 - Spring Wire Properties

High-carbon spring steels are the most commonly used of all springs materials. Try to use these materials in preference to others because that are least expensive, readily available, easily worked, and most popular. These materials are not satisfactory for high or low temperatures or for shock or impact loading.

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Carbon Valve
ASTM A 230
Nominal Chemistry
C0.60-0.75%
Mn0.60-0.90%
Minimum Tensile Strength
psi x 103
215-240
E - Modulus of Elasticity
psi x 106
30
Design Stress % Minimum Tensile 45
G - Modulus in Torsion
psi x 106
11.5
Maximum Operating Temperature
°F
250
Rockwell Hardness C45-49
Density
lb/in3
0.284
Shear Modulus
c GPa
11600 80.0
Method of Manufacture
Chief Uses
Special Properties
Cold drawn and heat treated before fabrication. Suitable for cyclic applications.
Equivalent or Common Trade Names
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