0.35mm 302 Stainless Steel Spring Wire | Hard & Soft Conditions

Product Specification

0.35mm 302 Stainless Steel Spring Wire

TOPONE 0.35 mm 302 stainless steel spring wire is designed for spring manufacturing and precision formed wire applications where wire diameter, material grade, and supply condition need to match the requirements of the finished component.

Made from 302 stainless steel, this spring wire is available for hard and soft application requirements. The 0.35 mm wire diameter makes it suitable for smaller spring components and precision wire forming applications where controlled wire size is an important part of the manufacturing process.

For spring wire selection, material grade, wire diameter, hardness or supply condition, spring design, working load, deflection, and operating environment should be considered together. The appropriate wire specification should be confirmed according to the final component and forming process.

Technical Specifications

Material Characteristics

302 Stainless Steel

302 stainless steel is an austenitic stainless steel grade commonly used for stainless steel wire and spring applications. The material grade should be selected according to the required forming characteristics, mechanical requirements, and operating environment of the finished component.

0.35 mm Fine Wire Diameter

The 0.35 mm diameter is suitable for applications requiring a relatively fine stainless steel spring wire. Wire diameter is an important parameter in spring design because it affects the dimensions and load characteristics of the finished spring.

For customized spring requirements, the 0.35 mm wire diameter should be evaluated together with coil diameter, free length, number of coils, working load, and deflection.

Hard and Soft Spring Wire Conditions

Hard Condition

Hard spring wire can be considered for applications where the finished component requires a specific mechanical condition and the forming process is compatible with the supplied wire condition.

The required hardness and mechanical properties should be confirmed according to the final spring design and applicable specification rather than assumed from the product name alone.

Soft Condition

Soft wire provides a different starting condition for forming and can be selected when the manufacturing process requires greater deformation before the final component reaches its required condition.

The appropriate condition depends on the spring design, forming method, heat treatment requirements, and final mechanical properties.

Applications

Precision Springs

The 0.35 mm 302 stainless steel spring wire can be used for small spring components where fine wire diameter and controlled material specifications are required.

Compression Springs

Compression springs are designed to resist compressive loads. The finished spring dimensions and working load should be considered when selecting the wire diameter and material condition.

Torsion Springs

Torsion springs generate torque through angular deformation and are used in mechanisms such as clips, hinges, levers, and other mechanical components.

Extension Springs

Extension springs operate under tensile loading and can be used in mechanisms requiring a return force when a component is pulled away from its original position.

Other Formed Wire Components

The wire can also be considered for precision formed wire components where 302 stainless steel and a 0.35 mm diameter meet the required design and manufacturing conditions.

How to Select 0.35mm Stainless Steel Spring Wire

Selecting fine stainless steel spring wire should be based on the complete spring design rather than wire diameter alone.

1. Confirm the Material Grade

302 stainless steel should be evaluated according to the required material characteristics, forming process, and operating environment.

2. Confirm the Wire Diameter

The specified wire diameter is 0.35 mm. This dimension should match the required spring geometry and load characteristics.

3. Define the Material Condition

Hard or soft conditions should be selected according to the forming process and required mechanical properties of the finished component.

4. Provide Spring Design Parameters

For customized spring requirements, useful information includes wire diameter, coil diameter, free length, number of coils, working load, working deflection, and spring type.

5. Consider the Working Environment

Temperature, humidity, chemical exposure, cyclic loading, and other service conditions should be considered when selecting stainless steel spring wire.

Product Advantages

302 Stainless Steel Grade

The defined 302 stainless steel grade provides a clear material specification for spring wire applications and helps match the raw material with the requirements of the finished component.

0.35 mm Fine Diameter

The 0.35 mm wire diameter is suitable for smaller spring components and precision formed wire applications where a fine wire size is required.

Hard and Soft Conditions

Different material conditions can be considered according to the forming process and final mechanical requirements, subject to specification confirmation.

Suitable for Spring Manufacturing

The wire can be used for compression, torsion, extension, and other formed spring applications depending on the final spring design.

Specification-Based Selection

Material grade, wire diameter, condition, surface, spring dimensions, and working requirements can be reviewed together to determine a suitable specification for customized applications.

Production and Quality Considerations

For fine stainless steel spring wire, dimensional control becomes particularly important because the wire diameter directly influences the geometry of the finished spring.

Quality requirements should therefore consider material grade, wire diameter, surface condition, mechanical properties, and supply condition. For customized applications, the customer's spring design and working conditions should be reviewed before production.

Inspection requirements can include dimensional inspection, surface inspection, mechanical property testing, and verification of the specified material requirements.

FAQ

What material is used for this spring wire?

This product uses 302 stainless steel.

What is the wire diameter?

The specified wire diameter is 0.35 mm.

Is this wire available for hard and soft applications?

The product is designed for hard and soft application requirements. The appropriate material condition should be confirmed according to the forming process and final mechanical requirements.

What types of springs can be made from this wire?

The wire can be used for compression springs, torsion springs, extension springs, and other formed spring components, depending on the finished spring design.

Is 0.35 mm suitable for precision spring applications?

A 0.35 mm wire diameter can be considered for smaller spring components and precision formed wire applications. Final suitability depends on spring dimensions, working load, deflection, and operating conditions.

What information is needed for a customized spring wire inquiry?

Useful information includes material grade, wire diameter, hard or soft condition, spring type, coil diameter, free length, number of coils, working load, deflection, surface requirement, quantity, and application.

Information Required for a Spring Wire Inquiry

To evaluate a customized 302 stainless steel spring wire requirement, customers can provide:

• Material grade

• Wire diameter

• Hard or soft condition

• Spring type

• Coil diameter

• Free length

• Number of coils

• Working load

• Working deflection

• Surface requirement

• Quantity

• Application

• Packing requirements