SWCH35K wire is a high-quality carbon steel wire commonly used for cold heading. This grade of wire is suitable for cold heading and cold extrusion, has certain toughness and ductility, is easy to be processed into parts of various complex shapes, can withstand large deformation at room temperature without cracking, ensures the consistency and reliability of product quality, and meets the performance requirements of various mechanical parts.

Chemical element content (%)

Specification：2.00~42.00mm

Production process:

Process D: cold drawing of wire rod into steel wire;
Process DA: annealed cold drawn steel wire and annealed wire rod into cold drawn steel wire.

Deoxidation method: The character after the number in the grade indicates the deoxidation method of the steel, and "K" stands for killed steel.

Application: Commonly used to manufacture various standard and non-standard parts, such as fasteners such as bolts, nuts, screws, and some small mechanical parts; widely used in automobiles, machinery manufacturing, electronic equipment, construction and other industries.

Mechanical properties:

-After spheroidizing annealing (DA) before cold working of wire, the tensile strength must be ≤620MPa, the cross-sectional shrinkage rate must be ≥55%, and the hardness HRB must be ≤92.

It should be noted that for steel wires with a diameter of 20mm or more, the minimum cross-sectional shrinkage rate should be 5 less than the specified value; for steel wires with a diameter of 3mm or less, the cross-sectional shrinkage rate is usually not specified.