0.9mm 304 Stainless Steel Spring Wire for Heavy-Duty Applications

0.9mm 304 Stainless Steel Spring Wire

0.9mm 304 Stainless Steel Spring Wire is a round stainless steel wire designed for the production of springs and elastic metal components. The wire has a nominal diameter of 0.9mm and is manufactured from 304 stainless steel.

Stainless steel spring wire is commonly supplied in cold-drawn conditions for spring manufacturing. ISO 6931-1:2016 specifies stainless steel wire for springs and spring parts, covering circular wire sizes up to 10.00mm in diameter. ASTM A313/A313M covers stainless steel round spring wire intended especially for spring manufacturing and includes requirements related to chemical composition, tensile strength and mechanical testing.

For 0.9mm 304 stainless steel spring wire, final material selection should consider spring design, forming method, working load, temperature, service environment and required mechanical properties.

Product Specifications

Specific standards, mechanical properties, diameter tolerance and supply condition should be confirmed according to the purchase specification.

Key Features

0.9mm Fine Diameter

The 0.9mm diameter is suitable for fine-gauge spring wire applications and can be considered for small and medium-sized spring components.

For spring design, wire diameter should be evaluated together with spring diameter, number of active coils, working travel and load requirements.

304 Stainless Steel Material

304 is a commonly used austenitic stainless steel grade for applications requiring stainless steel material.

The final spring performance should be evaluated according to the actual supply condition, cold working condition and applicable standard rather than the material grade alone.

Designed for Spring Forming

The product is positioned as stainless steel spring wire for cold forming processes such as coiling and bending.

ASTM A313/A313M specifies requirements for stainless steel round spring wire and includes requirements related to tensile strength and mechanical tests.

Specification-Based Selection

For batch spring production, wire diameter, material condition, mechanical properties and surface condition can affect the forming process.

Buyers should therefore confirm:

• Wire diameter

• Diameter tolerance

• Tensile strength

• Surface condition

• Material grade

• Spring forming process

• Coil weight

• Applicable standard

Applications

Compression Springs

Suitable for compression spring production where the spring operates under axial compression.

Extension Springs

Can be considered for extension springs and elastic components subjected to tensile loading.

Torsion Springs

Suitable for torsion spring applications where elastic deformation is generated through twisting.

Small Spring Components

The 0.9mm diameter can be considered for small springs and precision elastic metal components.

Industrial Components

Depending on the required material condition, mechanical properties and working environment, the wire can be used for industrial spring components and other stainless steel elastic parts.

Product Advantages

Defined 304 Material

The specified 304 stainless steel grade provides a clear material basis for spring wire selection.

0.9mm Diameter

The 0.9mm nominal diameter is suitable for fine-gauge spring applications. Actual dimensional tolerance should be confirmed according to the applicable standard and purchase specification.

Spring Wire Specification

The product is specified as spring wire rather than general-purpose stainless steel wire. Selection should consider tensile strength, supply condition and forming requirements.

Standards for Technical Reference

ASTM A313/A313M and ISO 6931-1 provide technical frameworks for stainless steel spring wire and can be used as references when defining material and inspection requirements.

How to Select 0.9mm Stainless Steel Spring Wire?

Step 1 — Confirm Material

Confirm the required stainless steel grade and applicable material standard.

Step 2 — Confirm Wire Diameter

Confirm the nominal 0.9mm diameter and required dimensional tolerance.

Step 3 — Confirm Mechanical Properties

Define tensile strength, hardness or other mechanical requirements according to the spring forming process and working load.

Step 4 — Confirm Spring Design

Provide key spring dimensions such as outside diameter, inside diameter, free length, active coils and working travel.

Step 5 — Confirm Working Conditions

For demanding applications, also confirm working temperature, corrosive environment, load conditions and required service cycles.

Quality & Technical Documentation

For B2B purchasing and engineering evaluation, the product page can be supported with:

• Chemical Composition

• Tensile Strength

• Hardness

• Diameter Tolerance

• Surface Condition

• Coil Weight

• Material Test Certificate

• Inspection Report

• Applicable Standard

• Packing Specification

Chemical composition and mechanical property data should be based on actual inspection records rather than generic values.

ASTM A313/A313M specifically addresses chemical composition, tensile strength and mechanical testing for stainless steel spring wire, making these technical parameters more useful than general claims such as “high quality spring wire.”

Packaging

The wire can be supplied in coil form according to wire diameter, coil weight and transportation requirements.

For automated spring forming equipment, buyers should confirm coil dimensions, wire weight and decoiling requirements before ordering.

Technical Inquiry

For evaluating whether 0.9mm 304 stainless steel spring wire is suitable for a specific spring, buyers are recommended to provide:

• Material grade

• Wire diameter

• Spring type

• Spring dimensions

• Required tensile strength

• Working load

• Working temperature

• Applicable standard

• Required quantity

These parameters help evaluate the compatibility between the wire specification, spring design and forming process.