0.7mm 304 Stainless Steel Spring Wire with Soap-Coated Surface

Product Specification

0.7mm 304 Stainless Steel Spring Wire with Soap-Coated Surface

0.7mm 304 Stainless Steel Spring Wire is a fine-gauge stainless steel round wire designed for spring and small elastic component manufacturing. The product is made from 304 stainless steel, has a nominal diameter of 0.7mm, and features a soap-coated surface.

For spring manufacturing, material grade, wire diameter, mechanical properties, surface condition and forming process should be considered together. ASTM A313/A313M specifies requirements for stainless steel round spring wire intended for spring manufacturing, including chemical composition, tensile strength and mechanical testing such as wrap and bend tests.

The 0.7mm diameter makes this product suitable for fine-gauge spring applications, including small springs, precision elastic components and other formed parts requiring stainless steel spring wire.

Product Specifications

Specific mechanical properties, dimensional tolerances, surface requirements and applicable standards should be confirmed according to the customer's technical specification.

Key Product Features

0.7mm Fine Diameter

The 0.7mm diameter is suitable for fine-gauge spring wire applications, including small springs and precision elastic components.

For precision spring production, wire diameter should be evaluated together with spring diameter, active coils, free length and working load.

304 Stainless Steel

The product uses 304 stainless steel and is intended for applications requiring an austenitic stainless steel material.

Final spring performance depends on material condition, cold working condition, mechanical properties and forming process. The material grade alone should not be used to determine the final spring performance.

Soap-Coated Surface

The product features a soap-coated surface, providing a defined surface condition different from bare or bright wire.

For automated spring forming, the surface condition should be evaluated together with the equipment, tooling, forming speed and subsequent processing requirements.

Designed for Precision Spring Production

The 0.7mm fine diameter and spring-wire specification make the product suitable for small springs, precision elastic components and other fine-gauge formed parts.

Final suitability should be evaluated according to spring design, working load, cycle requirements and mechanical properties.

Applications

Precision Springs

Suitable for small and precision spring components, including:

• Small compression springs

• Extension springs

• Torsion springs

• Precision elastic components

• Small mechanical springs

Compression Springs

Suitable for compression springs operating under axial compression.

Extension Springs

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

Torsion Springs

Suitable for torsion springs where elastic deformation is generated through twisting.

Small Elastic Components

The 0.7mm fine diameter can be considered for small elastic metal components and formed parts requiring a defined wire diameter.

Why Consider Soap-Coated Spring Wire?

For spring wire, surface condition can be relevant to the subsequent forming process as well as the final product requirements.

When selecting soap-coated spring wire, buyers should confirm:

• Spring forming equipment

• Die and tooling condition

• Forming speed

• Wire feeding method

• Required surface condition

• Subsequent cleaning requirements

• Subsequent coating or plating requirements

Therefore, soap-coated spring wire should be selected according to the complete forming process rather than surface terminology alone.

Product Advantages

304 Stainless Steel Material

The specified 304 stainless steel grade provides a clear material basis for manufacturing stainless steel springs and elastic components.

0.7mm Fine Diameter

The 0.7mm diameter is suitable for fine-gauge spring applications, particularly small and precision elastic components.

Soap-Coated Surface

The soap-coated surface provides a defined material condition that can be considered together with the spring forming process and subsequent surface treatment requirements.

Spring-Wire Specification

The product is specified as stainless steel spring wire rather than general-purpose stainless steel wire. Mechanical properties, dimensional tolerance and supply condition should be confirmed for spring production.

Standards-Based Specification

ASTM A313/A313M provides technical requirements for stainless steel round spring wire, including chemical composition, tensile strength and mechanical testing.

How to Select 0.7mm 304 Stainless Steel Spring Wire?

Step 1 — Confirm Material

Confirm the required 304 stainless steel grade and applicable material standard.

Step 2 — Confirm Wire Diameter

Confirm the nominal 0.7mm diameter and required dimensional tolerance.

Step 3 — Confirm Surface

Confirm whether a soap-coated surface is required and whether subsequent cleaning, coating or surface treatment is planned.

Step 4 — Confirm Spring Design

Provide spring outside diameter, inside diameter, free length, active coils and working travel.

Step 5 — Confirm Mechanical Properties

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

Step 6 — Confirm Forming Process

Confirm the spring forming equipment, feeding method, tooling condition and forming speed to match the wire supply condition.

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

• Soap Coating Specification

• Coil Weight

• Material Test Certificate

• Inspection Report

• Applicable Standard

• Packing Specification

Chemical composition, tensile strength and diameter tolerance should be based on actual inspection data.

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

Quality Control

If these processes are available at the factory, the manufacturing workflow can be presented as:

Raw Material Inspection → Wire Drawing → Heat Treatment / Stress Relief → Soap Coating → Diameter Inspection → Tensile Test → Surface Inspection → Final Inspection → Coil Packing

Actual production and inspection photographs can be added to demonstrate manufacturing experience and process control.

Packaging

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

For automated spring forming equipment, coil dimensions, weight, decoiling method and equipment compatibility should be confirmed before ordering.

Technical Inquiry

For evaluating whether 0.7mm 304 soap-coated stainless steel spring wire is suitable for a specific spring, buyers are recommended to provide:

• Material grade

• Wire diameter

• Surface requirement

• Spring type

• Spring dimensions

• Required tensile strength

• Working load

• Forming process

• Applicable standard

• Required quantity

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