Product Specification

AISI 302 Stainless Steel Spring Wire for Reliable Forming

Product Introduction

AISI 302 stainless steel spring wire is designed for manufacturers producing compression springs, extension springs, torsion springs and other wire-formed components.

As a commonly used austenitic stainless steel grade, AISI 302 is selected for spring applications where stainless steel material properties, forming requirements and corrosion resistance need to be considered together.

TOPONE supplies AISI 302 stainless steel spring wire in a 0.15–12 mm diameter range. The wire can be provided with different surface finishes, including bright and soap-coated surfaces, according to the customer's spring forming process and application requirements.

For spring manufacturing, selecting suitable wire requires consideration of material grade, wire diameter, mechanical condition, surface finish, forming method and working environment.

Technical Specifications

Material Characteristics of AISI 302 Stainless Steel Wire

Stainless Steel Grade for Spring Applications

AISI 302 is commonly used in cold-worked wire and spring manufacturing applications.

The final spring performance depends on multiple factors, including wire diameter, mechanical condition, spring design, forming process and service environment.

For this reason, spring wire selection should be based on the complete application requirements rather than material grade alone.

Suitable for Cold Working and Forming

During spring manufacturing, stainless steel wire is processed through coiling, bending or other forming operations.

The wire specification should be matched with the forming equipment, tooling design and finished spring requirements to achieve the desired component dimensions.

Surface Options

Bright Surface Stainless Steel Spring Wire

Bright surface wire provides a clean metallic appearance and is suitable for applications where surface condition and appearance are important.

It can be selected for:

• Precision springs

• Visible wire components

• Industrial formed parts

Soap-Coated Stainless Steel Spring Wire

Soap-coated wire provides a lubricated surface condition that can be considered for spring coiling and forming processes where additional lubrication is required.

The suitable coating condition should be selected according to the forming equipment, tooling and production requirements.

Applications

Compression Springs

AISI 302 stainless steel spring wire can be used for manufacturing compression springs designed for mechanical assemblies and industrial equipment.

The wire diameter, spring geometry and mechanical condition should be selected according to the required load and working conditions.

Extension Springs

The wire can be formed into extension springs used in various mechanical applications.

The final specification depends on spring design, end configuration and operating requirements.

Torsion Springs

AISI 302 spring wire can also be used for torsion spring manufacturing where the wire is formed to provide rotational force.

The appropriate wire specification should match the required torque, spring dimensions and forming process.

Wire Forming Components

The wire can also be processed into:

• Clips

• Hooks

• Retaining parts

• Industrial wire forms

• Precision formed components

Product Advantages

AISI 302 Stainless Steel Grade

AISI 302 provides a defined stainless steel material option for spring manufacturing and cold-worked wire applications.

Material selection should be based on corrosion requirements, forming process, mechanical requirements and application conditions.

0.15–12 mm Diameter Range

TOPONE supplies AISI 302 stainless steel spring wire from 0.15–12 mm, covering different requirements from fine springs to larger industrial wire-forming applications.

Bright and Soap-Coated Surface Options

Different surface finishes are available according to spring coiling conditions, lubrication requirements and final application needs.

Suitable for Multiple Spring Types

The wire can be specified for:

• Compression springs

• Extension springs

• Torsion springs

• Coil springs

• Customized wire-formed components

Specification-Based Manufacturing

Spring wire specifications can be defined according to:

• Material grade

• Wire diameter

• Diameter tolerance

• Surface condition

• Mechanical requirements

• Applicable standard

• Application

This provides a clear technical basis for production and inspection.

How to Select AISI 302 Spring Wire

1. Confirm the Spring Type

Identify whether the component is a compression spring, extension spring, torsion spring or another formed wire component.

2. Select the Wire Diameter

Wire diameter should match the spring design, forming equipment and required mechanical performance.

TOPONE provides AISI 302 spring wire in a 0.15–12 mm diameter range.

3. Define the Mechanical Condition

The spring condition should be selected according to the forming process, spring design and required performance.

4. Choose the Surface Finish

Bright or soap-coated surfaces can be selected according to lubrication requirements, equipment conditions and finished product appearance.

5. Confirm Technical Requirements

For customized production, customers should provide:

• Material grade

• Diameter

• Tolerance

• Surface finish

• Standard

• Quantity

• Spring application

Why Proper Wire Selection Matters for Spring Manufacturing

Spring performance depends on the relationship between wire material, diameter, forming process and finished spring design.

A suitable stainless steel spring wire specification helps manufacturers match the wire characteristics with the required component geometry and production process.

Therefore, material grade, wire diameter, mechanical condition and surface condition should be evaluated together before production.

Quality and Manufacturing Information

TOPONE supplies AISI 302 stainless steel spring wire for industrial spring manufacturing and wire forming applications.

Products can be supplied according to international standards including ASTM, AISI, DIN, EN, JIS and GB requirements.

For technical evaluation, customers can provide the required material grade, wire diameter, surface condition, quantity, standard and application requirements.

Frequently Asked Questions

What is AISI 302 stainless steel spring wire?

AISI 302 stainless steel spring wire is stainless steel wire used for spring manufacturing and cold-worked wire applications.

What diameter range is available?

TOPONE supplies AISI 302 stainless steel spring wire in a 0.15–12 mm diameter range.

What surface options are available?

Bright and soap-coated surface options are available according to forming and application requirements.

What springs can use 302 stainless steel wire?

It can be used for compression springs, extension springs, torsion springs, coil springs and other wire-formed components.

What information is needed for ordering?

Customers should provide material grade, diameter, quantity, surface condition, standard, mechanical requirements and application information.