Alloy steel coils

Alloy Steel Wire

Chrome materials

Chrome alloy spring wire is a high-strength ferrous alloy wire commonly used in the manufacture of mechanical springs that require excellent resilience, fatigue resistance, and durability under repeated loading.

Typically alloyed with chromium and other elements, this material offers improved hardenability, tensile strength, and resistance to wear compared with standard carbon spring steels.

Chrome alloy spring wire is widely utilized in automotive suspension springs, industrial compression and extension springs, agricultural equipment, and heavy-duty mechanical components where reliable performance under cyclic stress is critical.

Its ability to maintain mechanical properties after heat treatment, combined with good toughness and resistance to permanent deformation, makes it a preferred choice for demanding applications operating under high loads and challenging service conditions.

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Material Chrome Vanadium Chrome Silicon
ASTM A 231 A 401
Nominal Analysis C -- .48 - .53% C -- .51-.59%
Cr -- .80 - 1.10% Cr -- .60-.80%
V -- .15 min % Si -- 1.20-1.60%
Minimum Tensile Strength 190-300 235-300
Modulus of Elasticity E 30 30
psi x 103
Design Stress % Minimum 45 45
Tensile
Modulus in Torsion 11.5 11.5
G psi x 106
Maximum Temp. F 425 475
Maximum Temp. C 218.5 246
Rockwell Hardness C41-55 C48-55
Common Applications Industrial Machinery, Firearms, Automotive, or medical Equipment. Industrial Machinery, Firearms, Automotive, or medical Equipment.

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