What is High Carbon Steel Spring Wire?

High Carbon Steel Spring Wire is a cold-drawn, high-tensile wire specifically engineered for the manufacturing of springs and other resilient components. As the name suggests, it has a higher carbon content (typically between 0.60% and 1.00%) than standard steel. This elevated carbon level, combined with precise heat treatment and drawing processes, gives the wire its exceptional strength, hardness, and unique ability to return to its original shape after being bent or compressed.

Key Performance Properties

Our high carbon spring wire is designed to perform under pressure. Its standout properties make it the material of choice for demanding applications:

• High Tensile Strength: It offers superior resistance to pulling or stretching forces, ensuring springs can handle significant loads without deforming.

• Excellent Elasticity and Fatigue Resistance: This wire can undergo repeated cycles of deflection and return to its original form without losing its mechanical properties. This "memory" is crucial for the longevity of springs.

• Superior Hardness: The high carbon content and manufacturing process result in a wire that is hard and wear-resistant, ideal for components subject to friction and abrasion.

• Good Ductility in Annealed State: Before being hardened, the wire is ductile enough to be wound, formed, and shaped into complex spring designs with ease.

Technical Specifications and Available Sizes

Precision is paramount. We offer a comprehensive range of sizes and specifications to meet your exact design requirements.

Common Standards: Our wire complies with international standards such as ASTM A227, ASTM A229, and SAE J1781, ensuring global quality and compatibility.

Standard Diameter Range:

• Imperial Sizes: 0.020" to 0.625"

• Metric Sizes: 0.50 mm to 16.00 mm

(We can produce custom diameters outside this range upon request.)

Typical Mechanical Properties:

• Tensile Strength: Ranges from 220,000 PSI to 300,000 PSI (approx. 1500 MPa to 2000 MPa), depending on the wire diameter and specific grade.

• Surface Finish: A smooth, clean finish is standard, minimizing friction and stress points during spring coiling. Oiled finish is available for enhanced corrosion protection during storage and improved formability.

Common Applications Across Industries

The robustness of high carbon steel spring wire makes it indispensable in:

• Automotive Industry: Valve springs, clutch springs, suspension springs.

• Industrial Machinery: Heavy-duty compression and extension springs, die springs.

• Agriculture: Plow springs, harrow springs, and various machinery components.

• Consumer Goods: Mattress innersprings, trampolines, hand tools, and appliances.

• General Manufacturing: Any application requiring a reliable, cost-effective material for high-stress cyclic loading.

Why Choose Our High Carbon Steel Spring Wire?

• Uncompromising Quality Control: Every batch is rigorously tested for tensile strength, dimensional accuracy, and surface quality.

• Consistent Performance: Our precise manufacturing process ensures you get the same high-quality wire, order after order.

• Technical Expertise: Our team is ready to provide support and recommendations for your specific application challenges.

• Competitive Pricing & Global Logistics: We offer cost-effective solutions without sacrificing quality and can deliver to your doorstep, wherever you are.

Ready to power your next project with reliability and precision?

Explore our full product catalog or contact our technical sales team today to discuss your requirements and request a quote. Let us be your trusted partner for high-performance spring wire solutions.