High-Carbon Steel Spring Wire Properties
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High-Carbon 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.


convert to metric units
Music Wire
ASTM A 228		 Hard Drawn
ASTM A 227		 High Tensile
Hard Drawn
ASTM A 679		 Oil Tempered
ASTM A 229		 Carbon Valve
ASTM A 230
Nominal Chemistry
C 0.70 - 1.00%
Mn 0.20 - 60%
C 0.45 - 0.85%
Mn 0.60 - 1.30%
C 0.65 - 1.00%
Mn 0.20 - 1.30%
C 0.55 - 0.85%
Mn 0.60 - 1.20%
C 0.60 - 0.75%
Mn 0.60 - 0.90%
Minimum Tensile Strength
psi x 103 		230-399 CLI 147-283
CLII 171-324 		238-350 CLI 165-293
CLII 191-324 		215-240
E - Modulus of Elasticity
psi x 106 		30 30 30 30 30
Design Stress % Minimum Tensile 45 40 45 45 45
G - Modulus in Torsion
psi x 106 		11.5 11.5 11.5 11.5 11.5
Maximum Operating Temperature
°F 		250 250 250 250 250
Rockwell Hardness C41-60 C31-52 C41-60 C42-55 C45-49
Density
lb/in3 		0.284 0.284 0.284 0.284 0.284
Method of Manufacture
Chief Uses
Special Properties		 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.
*Note: All material properties are provided for general reference purposes only.
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We manufacture extension, torsion and compression springs with High-Carbon Steel