SWCH50K is a cold-headed carbon steel wire. SWCH50K wire adopts advanced production technology to ensure the uniformity and stability of its chemical composition, which makes the wire achieve a perfect balance in strength, toughness and ductility. It can withstand high-intensity stretching and bending without breaking or deforming, ensuring the quality and reliability of the product; it also has good corrosion resistance and wear resistance. In harsh working environments, it can resist the erosion of external factors, maintain stable performance for a long time, and reduce maintenance and replacement costs.

SWCH50K wire has become an ideal choice for many industries with its excellent characteristics.

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:Used to manufacture various types of screws (such as bolts, nuts, rivets, machine screws, self-tapping screws, etc.) and various parts made by cold heading; widely used in automobiles, shipbuilding, equipment manufacturing, electronics, home appliances, bicycles, tools, light steel structures, construction and other industries.

Mechanical properties:

-After spheroidizing annealing (DA) before cold working of the wire, the tensile strength must be ≤710MPa, the cross-sectional shrinkage rate must be ≥55%, and the hardness HRB≤97.

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.