Cold-Drawn Steel Wire for Coiled Springs by ASTM International

This standard covers round, cold-drawn steel spring wire, designed for producing various types of upholstery springs: Type A (Coiled, Marshall pack), B (Coiled and knotted), C (Coiled and knotted, offset style), D (Coiled and hooked, single and cross helicals), E (Coiled and hooked, short tension, regular tensile strength), F (Coiled and hooked, short tension, high tensile strength), G (Regular lacing), H (Automatic lacing), I (Zig-zag, U-formed), J (Square-formed), and K (Sinuous for furniture spring units). These springs are used in automotive seat springs, furniture springs, bed spring units, mattresses, furniture cushions, and automobile seats. It's not suitable for mechanical spring production.

• Product Application: Covers round, cold-drawn steel spring wire for various upholstery spring types
• Usage: Manufactured into automotive seat springs, furniture springs, bedding, and more
• Not Suitable For: Mechanical spring production
• Safety Responsibility: Users must establish safety practices and adhere to regulations
• Standard Development: Aligned with international standardization principles by WTO TBT Committee