Product Introduction

302CHQ 304HQ Cold Drawn Stainless Steel Wire for Cold Forming

302CHQ and 304HQ cold drawn stainless steel wire is designed for manufacturers requiring suitable material properties for cold heading and cold forming processes. It is commonly used for producing stainless steel fasteners and precision formed components, including screws, bolts, nuts, rivets and pins.

Cold forming applications require careful selection of material grade, wire diameter, surface condition and mechanical properties. TOPONE supplies 302CHQ, 304HQ, 304 and 430 stainless steel wire with customized tensile strength options according to different forming processes and component requirements.

The wire is produced with a bright surface finish and available in soft or semi-soft conditions. Diameter range covers 0.15–12mm, supporting different cold heading and wire forming applications.

Technical Specifications

Material Selection Guide

302CHQ Stainless Steel Wire

302CHQ is a commonly selected stainless steel grade for cold heading applications. Its composition is designed for forming processes where material flow and work-hardening behavior need to be considered.

Typical applications:

• Stainless steel screws
• Self-tapping screws
• Precision fasteners
• Small cold formed components

304HQ Stainless Steel Wire

304HQ is selected for cold heading applications requiring a balance between stainless corrosion resistance and forming performance.

Typical applications:

• Bolts
• Nuts
• General fasteners
• Industrial formed parts

Cold Forming Application

Stainless Steel Fastener Manufacturing

302CHQ and 304HQ cold drawn wire can be used for manufacturing:

• Bolts
• Nuts
• Screws
• Rivets
• Pins
• Studs
• Washers

The final material selection depends on:

• Component design
• Forming steps
• Required deformation
• Surface requirements
• Working environment

Product Advantages

Customized Tensile Strength Requirements

Different cold forming processes require different mechanical properties. Tensile strength can be customized according to:

• Stainless steel grade
• Wire diameter
• Delivery condition
• Final application

This helps match the wire specification with the customer's forming process requirements.

Multiple Grades for Different Manufacturing Needs

Available grades include:

• 302CHQ
• 304HQ
• 304
• 430

Manufacturers can select suitable materials according to forming requirements, corrosion conditions and finished component specifications.

Controlled Diameter Range

The product supports a diameter range of 0.15–12mm, covering fine wire and larger diameter requirements for different cold forming applications.

Bright Surface for Cold Forming Processes

Bright surface wire can be selected according to production requirements, lubrication conditions and subsequent processing needs.

Surface selection should be evaluated together with:

• Die design
• Lubrication system
• Forming speed
• Finished product requirements