Product Specification

2mm 316 Stainless Steel Spring Wire with High Corrosion Resistance and 1650–1900 MPa Tensile Strength

Product Introduction

2mm 316 Stainless Steel Spring Wire is designed for spring manufacturing and formed-wire applications where controlled mechanical properties and corrosion resistance are important.

The wire is manufactured from AISI 316 stainless steel with a nominal diameter of 2.0 mm and a specified diameter tolerance of ±0.02 mm. The available tensile strength range is 1650–1900 MPa, providing a defined mechanical-property range for spring production.

316 stainless steel is commonly selected for spring applications exposed to moisture, chlorides, marine atmospheres, and other demanding environments. The material contains molybdenum, which is one of the factors considered when 316 is selected for improved resistance to localized corrosion compared with some conventional austenitic stainless steel grades.

This 2mm spring wire can be used for compression springs, extension springs, torsion springs, and other mechanical spring components. Final material selection should be based on the spring design, working load, forming process, surface condition, and actual service environment.

Product Specifications

Why Choose 316 Stainless Steel Spring Wire?

AISI 316 Stainless Steel for Demanding Environments

AISI 316 is an austenitic stainless steel grade containing molybdenum. Under appropriate conditions, this composition can provide better resistance to localized corrosion than grades without molybdenum.

For spring applications, 316 can therefore be considered when components are exposed to moisture, chlorides, marine environments, or certain industrial atmospheres.

However, corrosion performance depends on the actual medium, concentration, temperature, exposure time, surface condition, and component design. 316 stainless steel should not be described as universally corrosion-proof.

2.0mm Diameter with ±0.02mm Tolerance

The nominal wire diameter is 2.0 mm with a specified tolerance of ±0.02 mm.

Wire diameter is an important spring-design parameter because it affects coil geometry, spring rate, load characteristics, and forming requirements. A defined diameter tolerance is therefore useful when the wire is processed by automatic or precision spring-forming equipment.

For production orders, the applicable dimensional standard and customer's drawing should be confirmed before manufacturing.

1650–1900 MPa Tensile Strength

The specified tensile strength range for this product is 1650–1900 MPa.

Tensile strength should be considered together with wire diameter, spring geometry, forming method, working stress, and service conditions.

A higher tensile strength is not automatically suitable for every spring application. The appropriate range depends on the requirements of the finished spring and the manufacturer's forming process.

Surface Options

Bright Surface

Bright stainless steel spring wire can be selected when surface appearance, cleanliness, and a defined metallic finish are important to the application.

Soap-Coated Surface

Soap-coated spring wire can be considered for spring-forming processes where the surface condition needs to support wire feeding and forming operations.

The appropriate surface should be selected according to the customer's spring-forming equipment, lubrication requirements, and finished-component specifications.

Applications

Heavy-Duty Compression Springs

2mm 316 stainless steel spring wire can be used for compression spring applications where the spring operates under compressive loading.

Potential applications include industrial equipment, hydraulic components, mechanical assemblies, and other load-bearing spring mechanisms.

Extension Springs

The wire can also be processed into extension springs designed to operate under tensile loading.

Selection should consider the required extension, working load, coil geometry, and operating environment.

Torsion Springs

For torsion springs, the 2.0 mm wire diameter should be evaluated together with coil diameter, leg configuration, forming method, and required operating torque.

Industrial Equipment

316 spring wire can be considered for springs used in equipment exposed to humid or demanding industrial environments.

Typical applications include:

• Conveyor equipment

• Hydraulic valves

• Industrial machinery

• Mechanical assemblies

• Heavy equipment

Automotive Components

Potential automotive applications include suspension-related spring components, clutch mechanisms, brake components, and other formed-wire parts.

The final material selection should be based on the specific component design and operating environment.

Marine and Coastal Applications

316 stainless steel is often considered for marine and coastal applications where exposure to moisture and chlorides can influence material selection.

The actual suitability should be evaluated according to the specific exposure conditions rather than relying on the material grade alone.

Energy and Process Equipment

The wire can also be considered for spring components used in valves, equipment assemblies, and industrial systems where stainless steel and defined mechanical properties are required.

Technical Factors to Consider When Buying 2mm 316 Spring Wire

Before purchasing 2mm 316 stainless steel spring wire, buyers should confirm:

• Material grade

• Wire diameter

• Diameter tolerance

• Tensile strength range

• Surface finish

• Spring temper

• Spring type

• Forming equipment

• Working load

• Operating temperature

• Corrosive medium

• Applicable technical standard

• Coil or spool weight

• Packaging requirements

For heavy-duty or precision spring applications, the wire specification should be matched to the finished spring design rather than selected by material grade alone.

316 vs 302 Stainless Steel Spring Wire

The choice between 316 and 302 should be based on the operating environment and mechanical requirements.

302 stainless steel spring wire is widely used for general spring applications. 316 may be considered when improved resistance to chloride-containing or more demanding environments is an important material-selection factor.

The comparison should also consider:

This comparison is intended as a material-selection guide rather than a universal performance ranking.

Quality Control and Standards

ASTM A313/A313M covers austenitic and age-hardenable stainless steel round spring wire intended especially for spring manufacturing. The specification addresses chemical composition and tensile-strength requirements and includes mechanical tests such as wrap testing, coil uniformity, and bend testing.

For this 2mm 316 spring wire, quality evaluation can include:

• Chemical composition

• Wire diameter

• Diameter tolerance

• Tensile strength

• Surface condition

• Coil uniformity

• Wrap test

• Bend test

The applicable standard and testing requirements should be confirmed according to the customer's purchase specification.

Packaging and Supply

The standard packaging for this product is available in 50 kg coils or spools, with packaging configurations adjustable according to customer requirements.

For bulk orders, buyers should confirm:

• Coil or spool type

• Unit weight

• Number of coils

• Pallet requirements

• Labeling requirements

• Export packaging

• Shipping quantity

Clear packaging specifications help spring manufacturers plan material handling and production feeding requirements.

Why TOPONE Wire?

TOPONE Wire supplies stainless steel wire for industrial manufacturing applications, including stainless steel spring wire, annealed wire, EPQ wire, and customized stainless steel wire products.

For 2mm 316 stainless steel spring wire, customers can specify the required:

• Grade

• Diameter

• Tolerance

• Tensile strength

• Surface

• Standard

• Quantity

• Packaging

This specification-based approach allows the wire to be evaluated according to the customer's spring manufacturing process and actual service conditions.

FAQ

What is 2mm 316 stainless steel spring wire used for?

It can be used for compression springs, extension springs, torsion springs, and other mechanical spring components used in industrial, automotive, marine, and equipment applications.

What is the tensile strength of this 2mm 316 spring wire?

The specified tensile strength range is 1650–1900 MPa.

What is the diameter tolerance?

The nominal diameter is 2.0 mm with a specified tolerance of ±0.02 mm.

Why choose 316 instead of 302 stainless steel spring wire?

316 may be considered when the spring operates in environments involving moisture, chlorides, marine exposure, or other demanding conditions. The final choice should depend on the actual environment and spring requirements.

Is 316 stainless steel suitable for heavy-duty springs?

316 stainless steel can be used for various mechanical spring applications, including heavy-duty components. However, suitability should be evaluated using wire diameter, tensile strength, spring geometry, working load, forming process, and service conditions.

What surface finishes are available?

This product is available with bright or soap-coated surface options according to the production specification and application requirements.