Product Specification

0.9mm AISI 304 Stainless Steel Wire for Spring Manufacturing

0.9mm 304 Stainless Steel Spring Wire

TOPONE 0.9mm AISI 304 Stainless Steel Wire is a cold-drawn stainless steel wire designed for spring manufacturing and formed-wire applications. Made from AISI 304 / SUS304 stainless steel, the wire can be supplied in different surface conditions and mechanical properties according to the required spring-forming process.

With a nominal diameter of 0.9 mm, this stainless steel wire is suitable for various spring designs where wire diameter, tensile strength, surface condition and corrosion resistance need to be considered together.

For spring manufacturers, selecting the appropriate wire requires more than confirming the material grade. The required spring type, wire diameter, mechanical condition, forming method, operating environment and applicable standard should all be defined before production.

Product Specifications

Note: Tensile strength and other mechanical properties should be confirmed according to the applicable standard, wire diameter, spring-wire class and agreed product specification.

AISI 304 Stainless Steel

AISI 304 is an austenitic stainless steel grade widely used for stainless steel wire, spring components and formed-wire applications.

Its chromium and nickel content contributes to its corrosion-resistant characteristics, making 304 stainless steel a common material choice for applications exposed to moisture or general industrial environments.

However, spring performance is not determined by material grade alone. Cold drawing, wire diameter, tensile strength and the final spring design all influence the mechanical behavior of the finished component.

For this reason, the material specification should be considered together with the actual operating conditions and forming requirements.

Cold-Drawn Manufacturing

The wire is manufactured through a cold-drawing process to achieve the required diameter and mechanical condition.

For 0.9mm stainless steel spring wire, dimensional control and surface condition are important considerations because the wire is subsequently processed through spring coiling or other forming equipment.

The final mechanical specification should be established according to the required spring design and applicable standard.

Surface Options

Bright Surface

A bright surface can be selected when a clean metallic appearance and controlled surface condition are required for spring manufacturing or subsequent processing.

Soap-Coated Surface

A soap-coated surface provides a lubricated finish for suitable spring-forming and cold-forming processes.

The surface should be selected according to the customer's forming equipment, production process and lubrication requirements.

Applications

Compression Springs

0.9mm 304 stainless steel wire can be used for compression springs in mechanical and industrial assemblies where the specified stainless steel grade and mechanical condition meet the spring design requirements.

Extension Springs

The wire can also be used for extension spring manufacturing, subject to the required tensile strength, forming process and working conditions.

Torsion Springs

For torsion spring applications, wire diameter should be evaluated together with spring diameter, spring index, number of coils, working load and operating conditions.

Formed Wire Components

The wire can be processed into various formed-wire components, including clips, hooks, retaining parts and other small hardware components.

Typical Application Areas

• Industrial equipment

• Mechanical assemblies

• Automotive components

• Electrical components

• Hardware products

• General spring manufacturing

• Wire forming applications

• Small mechanical components

Product Advantages

1. AISI 304 Stainless Steel

The AISI 304 / SUS304 grade provides a commonly used stainless steel option for spring and wire-forming applications requiring corrosion-resistant material.

2. 0.9mm Wire Diameter

The 0.9mm diameter provides an intermediate wire size for spring designs that require a balance between compact dimensions and the mechanical requirements of the finished spring.

Final spring performance should be evaluated based on the complete spring geometry, material condition and working load rather than wire diameter alone.

3. Cold-Drawn Wire

Cold drawing is used to achieve the specified wire diameter and mechanical condition. Production and inspection can be carried out according to the agreed dimensional and mechanical requirements.

4. Flexible Surface Options

Bright and soap-coated surface options are available for different spring forming and processing requirements.

5. Multiple Standard Options

The product can be specified according to ASTM, JIS, EN, DIN or GB requirements, subject to the agreed technical specification.

How to Select 0.9mm Stainless Steel Spring Wire

Before purchasing 0.9mm 304 stainless steel spring wire, the following specifications should be confirmed.

Material Grade

Confirm whether AISI 304 / SUS304 is required or whether another stainless steel grade is specified for the application.

Wire Diameter

Specify the nominal diameter of 0.9 mm together with the required diameter tolerance.

Mechanical Properties

Confirm the required tensile strength or spring-wire class according to the applicable standard and spring design.

Surface Condition

Choose bright or soap-coated surface according to the forming equipment and production process.

Spring Type

Identify whether the wire will be used for compression, extension, torsion or another spring configuration.

Operating Environment

Consider moisture, temperature, chemical exposure and other environmental conditions when selecting the stainless steel grade and mechanical specification.

Quality Inspection

Quality evaluation of stainless steel spring wire should be based on measurable product characteristics.

Depending on the agreed specification, inspection may include:

• Chemical composition

• Wire diameter and tolerance

• Tensile strength

• Surface condition

• Visual inspection

• Coil dimensions

• Weight

• Packaging condition

• Applicable standard requirements

Inspection requirements can be confirmed according to the customer's technical specification and purchase order.

Packaging

The 0.9mm stainless steel spring wire can be supplied in coils, spools or palletized packages according to wire weight, handling requirements and customer specifications.

Export packaging can be selected according to transportation conditions and downstream production requirements.

FAQ

What material is the 0.9mm spring wire made from?

The wire is manufactured from AISI 304 / SUS304 stainless steel.

What is the diameter of this stainless steel wire?

The nominal diameter of this product is 0.9 mm.

Is 0.9mm stainless steel wire suitable for spring making?

Yes. 0.9mm stainless steel wire can be used for selected compression, extension and torsion spring applications when its material grade, mechanical properties and surface condition meet the spring design requirements.

What surface finishes are available?

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

What standards can be used?

The product can be specified according to ASTM, JIS, EN, DIN or GB requirements, subject to the agreed product specification.

Can the tensile strength be customized?

The required mechanical properties can be discussed according to the wire diameter, applicable standard, spring-wire class and customer's technical requirements.

What packaging options are available?

The wire can be supplied in coils, spools or palletized packages according to order requirements.