Product Specification

Cold Drawn 316 Stainless Steel Spring Wire for Corrosive Applications

Product Introduction

TOPONE cold drawn 316 stainless steel spring wire is designed for spring manufacturing and wire-forming applications where stainless steel material and corrosion resistance are important selection factors.

Manufactured from AISI 316 / SUS316 stainless steel, the wire is available in diameters from 0.15–12 mm. Bright and soap-coated surface options are available according to the forming process and finished spring requirements.

The wire is supplied in coil or spool form for downstream spring production. Depending on the application, it can be used for compression springs, extension springs, torsion springs and other formed wire components.

For spring wire selection, the material grade should be considered together with wire diameter, tensile strength, spring geometry, surface condition, working temperature and exposure to moisture, salt or chemicals.

Product Specifications

Why Choose 316 Stainless Steel Spring Wire?

AISI 316 Material for Corrosion-Exposed Applications

AISI 316 contains molybdenum in its alloy system and is commonly considered when stainless steel wire will be exposed to moisture, salt-containing environments or certain chemical conditions.

Material selection should always be based on the actual service environment. Temperature, chemical concentration, cleaning method and exposure time should be considered before selecting the stainless steel grade.

Cold Drawn Wire for Spring Manufacturing

Cold drawing is used to reduce the wire diameter and control the required dimensional and mechanical condition.

For spring production, the final wire specification should include the required diameter, mechanical condition and applicable standard rather than relying on the term “cold drawn” alone.

Bright and Soap-Coated Options

Different surface conditions can be selected according to the spring-forming process.

Bright surface can be considered where a clean visible wire surface is required.

Soap-coated surface can be considered when lubrication during wire forming is required. The coating specification should be confirmed according to the forming equipment and final application.

Wire Diameter Range

The available diameter range is 0.15–12 mm.

The correct wire diameter should not be selected based only on the finished spring size. Spring design should also consider:

• Required spring force

• Coil diameter

• Number of active coils

• Free length

• Working stroke

• Installation space

• Operating temperature

• Fatigue requirements

• Working environment

For custom spring production, providing a drawing or spring specification helps determine the appropriate wire diameter and mechanical condition.

Applications

Compression Springs

316 stainless steel spring wire can be used for compression springs where stainless steel material is required for the application environment.

Extension Springs

The wire can be processed into extension springs with customized hook configurations and dimensions according to the spring drawing.

Torsion Springs

For torsion spring production, wire diameter, coil diameter, leg length and bend geometry should be defined together to match the required assembly.

Industrial Wire Forms

The material can also be used for formed wire components where the combination of stainless steel grade, wire diameter and surface condition is specified.

Corrosion-Exposed Components

316 stainless steel wire can be considered for components exposed to moisture, salt or selected chemical environments, subject to actual service conditions and material compatibility.

Product Advantages

316 Stainless Steel Grade

AISI 316 provides a defined stainless steel material option for spring and wire-forming applications where corrosion resistance is an important consideration.

0.15–12 mm Diameter Range

The 0.15–12 mm range supports different spring and wire-forming requirements, from fine-wire components to larger formed wire applications.

Cold Drawn Processing

Cold drawing provides a controlled processing route for producing the required wire diameter and mechanical condition. The final tensile and spring properties should be specified according to the applicable standard or customer requirement.

Bright or Soap-Coated Surface

Two surface options allow the wire specification to be matched with different forming and finishing requirements.

Coil and Spool Supply

The wire can be supplied in coil or spool formats according to diameter, forming equipment and downstream processing requirements.

How to Select 316 Stainless Steel Spring Wire

1. Confirm the Material Grade

Specify AISI 316 / SUS316 and the applicable material standard.

2. Confirm Wire Diameter

Specify the required diameter within the 0.15–12 mm range.

3. Define Mechanical Requirements

For spring applications, provide the required tensile strength, spring temper or other mechanical requirements where applicable.

4. Define Spring Type

Identify whether the wire will be used for:

• Compression springs

• Extension springs

• Torsion springs

• Wire forms

• Other formed components

5. Confirm Surface Condition

Select bright or soap-coated surface according to the forming process and final product requirements.

6. Evaluate the Working Environment

Consider:

• Moisture

• Salt exposure

• Chemical exposure

• Cleaning chemicals

• Operating temperature

• Indoor or outdoor use

These conditions help determine whether 316 is appropriate for the application.

Quality and Specification Control

For stainless steel spring wire, material grade alone does not define the final spring performance.

A complete purchasing specification should normally include:

Grade + diameter + mechanical condition + surface + standard + coil/spool requirements + application.

For customized spring wire, the required tensile strength, dimensional tolerance and packaging should be confirmed before production.

Quality documentation and material test reports can be provided according to the agreed product specification.

FAQ

What is cold drawn 316 stainless steel spring wire?

It is 316 stainless steel wire processed through cold drawing for controlled diameter and mechanical condition, then supplied for spring manufacturing and wire-forming applications.

What diameter range is available?

The standardized product range is 0.15–12 mm.

What is the difference between bright and soap-coated spring wire?

Bright wire has a bright surface condition, while soap-coated wire includes a lubricating surface treatment that can be selected for certain forming processes.

Is 316 spring wire suitable for marine applications?

316 can be considered for applications exposed to moisture or salt-containing environments, but suitability depends on the actual exposure conditions, temperature and required service life.

Can the wire be supplied on spools?

Yes. The product can be supplied in coils or spools, depending on wire diameter and downstream spring-forming equipment.

What information should be provided for a customized order?

A spring drawing or specification should ideally include material grade, wire diameter, spring type, coil diameter, free length, working stroke, required force, surface condition and applicable standard.