Precision CHQ wire for screw production

Wuxi AoTian Steel Wire Products Co., Ltd. supplies precision cold heading quality (CHQ) wire engineered for high-performance screw production. Manufactured under tight dimensional control, this wire guarantees stable feeding in high-speed multi-station cold heading machines, ensuring consistent product geometry and reduced defect rates.

The combination of controlled chemistry, advanced drawing technology, and spheroidized annealing under nitrogen protection results in a wire with uniform grain size, high ductility, and reliable tensile properties. Surface treatments, including phosphating and polymer-based lubrication, further optimize forming behavior and extend tool life.

Available steel grades:

• Low-carbon grades: SAE1006, SAE1008, SAE1010, SAE1015
• Medium-carbon grades: C1018, C1022
• EN/DIN equivalents: C10C, C17C, C20C
• JIS grades: SWRCH22A, SWCH6A

Diameter range: 0.5 mm to 42.0 mm
Tolerance control: strict dimensional accuracy to support precision screw manufacturing
Typical hardness after annealing: 110–150 HV, depending on grade

Key benefits:

• Tight diameter tolerances for precise screw forming
• Stable tensile strength and ductility across coils
• Smooth surface finish reducing tool wear and ensuring consistent thread formation
• Full traceability and certified quality according to ISO 9001 and IATF 16949

Defects prevented through advanced processing:

• Wire breakage during high-speed forming
• Surface or subsurface decarburization
• Eccentricity and ovality of the wire
• Non-uniform mechanical properties across the coil

With a focus on dimensional stability and forming reliability, AoTian’s precision CHQ wire is an excellent choice for manufacturing screws requiring accuracy and performance in large-volume production.

Get in touch with Wuxi AoTian Steel Wire Products for detailed specifications or technical support.