Product Specification

Stainless Steel Cold Heading Wire for Reliable Fastener Forming

Product Introduction

Stainless steel cold heading wire is used as a raw material for manufacturing screws, bolts, nuts, rivets, pins, studs and other cold-formed components.

During cold heading, stainless steel wire is formed at room temperature inside a die. The material grade, wire diameter, delivery condition, surface finish and mechanical properties therefore need to match the forming process and finished component design.

TOPONE supplies stainless steel cold heading wire in multiple grades, including SUS 201, 202, 302, 302HQ, 304, 304HC and 316. Different grades can be selected according to forming requirements, corrosion conditions and final component specifications.

The available diameter range is 0.15–12 mm, with bright and soap-coated surface options available for different cold heading and cold forming processes.

Technical Specifications

Material Grade Selection

302HQ Stainless Steel Cold Heading Wire

302HQ is commonly selected for stainless steel cold heading applications where the forming characteristics of the wire are important. It can be used for screws, small fasteners and precision cold-formed components.

304 and 304HC Stainless Steel Wire

304-series cold heading wire can be considered for general fastener manufacturing where a balance between stainless steel corrosion resistance and forming requirements is needed.

Typical applications include bolts, nuts, screws and industrial hardware.

316 Stainless Steel Cold Heading Wire

316 stainless steel wire can be selected when the finished fastener or formed component requires higher corrosion resistance for moisture or chloride-containing environments.

Material selection should be based on the actual service environment and forming requirements.

Surface Options

Bright Surface

Bright stainless steel wire provides a clean metallic surface and can be selected when surface appearance and subsequent processing are important.

The surface condition should be evaluated together with the forming equipment, lubrication system and finished component requirements.

Soap-Coated Surface

Soap-coated wire can provide lubrication during cold heading and cold forming operations. It may be considered when die contact and lubrication conditions are important parts of the forming process.

The appropriate coating condition should be confirmed according to the forming method, tooling and production requirements.

Applications

Stainless Steel Fasteners

Cold heading wire can be used to manufacture:

• Stainless steel screws

• Bolts

• Nuts

• Rivets

• Pins

• Studs

• Washers

• Other fastening components

Precision Cold-Formed Components

The wire can also be used as raw material for cold-formed stainless steel components used in:

• Automotive components

• Industrial machinery

• Electrical equipment

• General hardware

• Engineering components

• Precision metal parts

The suitable grade and wire specification depend on component geometry, deformation level, forming sequence and service environment.

Product Advantages

Multiple Grades for Different Forming Requirements

TOPONE supplies several stainless steel grades, allowing manufacturers to select the material according to forming requirements, corrosion conditions and finished component specifications.

0.15–12 mm Diameter Range

The 0.15–12 mm diameter range covers fine wire through larger wire sizes used in different cold heading and cold forming applications.

Bright and Soap-Coated Options

Different surface conditions can be selected according to lubrication requirements, forming equipment and subsequent processing.

International Standard Options

The wire can be supplied according to ASTM, AISI, DIN, JIS, EN and GB requirements, helping manufacturers define material specifications for different markets.

Flexible Specification Matching

For cold heading applications, wire selection should consider the stainless steel grade, diameter, delivery condition, surface finish and mechanical properties together. This allows the material specification to be matched more closely with the actual forming process.

How to Select Stainless Steel Cold Heading Wire

Choosing cold heading wire should start with the finished component and manufacturing process.

1. Confirm the Material Grade

Select the stainless steel grade according to the required forming characteristics, corrosion resistance and final application.

2. Confirm the Wire Diameter

The wire diameter should correspond to the blank size and finished component design. TOPONE provides a diameter range of 0.15–12 mm.

3. Define the Forming Process

Consider whether the component will undergo single-stage or multi-stage cold heading, upsetting, cold forging or additional forming operations.

4. Confirm Surface and Lubrication Requirements

Bright and soap-coated surfaces can be selected according to die design, lubrication method and subsequent processing.

5. Define Mechanical Requirements

For customized requirements, provide the material grade, wire diameter, delivery condition, target mechanical properties and intended application. These factors can then be evaluated together when confirming the production specification.

Why Material Selection Matters in Cold Heading

Cold heading places the wire under significant deformation as the material flows into the die cavity. Stainless steel grades can behave differently during forming because of their chemical composition and work-hardening characteristics.

For this reason, selecting cold heading wire only by diameter is not sufficient. The material grade, supply condition, surface condition and forming sequence should all be considered before production.

This approach helps manufacturers choose a wire specification that is better matched to the geometry and manufacturing requirements of the finished fastener.

Manufacturer and Quality Information

TOPONE supplies stainless steel wire for cold heading and other industrial applications from China.

The product range covers multiple stainless steel grades, diameters and surface conditions. Production specifications can be discussed according to the customer's material standard, forming process, component design and application requirements.

ISO 9001:2015 certification is available for the product range.

For a quotation or technical specification, customers can provide the required grade, diameter, surface, quantity, standard and application so the suitable wire specification can be evaluated.