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302 Stainless Steel Spring Wire Bright Surface Based On ASTM A580 Standard

Categories Stainless Steel Spring Wire
Brand Name: Toponewire
Model Number: 0.3-18mm
Certification: ISO9001:2015
Place of Origin: China
MOQ: 500KG
Payment Terms: T/T, L/C, D/A, D/P, Western Union, MoneyGram
Supply Ability: 500tons per month
Delivery Time: 1-15 days
Packaging Details: coil, spool with plate.
Material: 302
Surface: Bright
Coil inner diameter: 250-1000mm
Standard: JIS G. EN. ASTM. DIN. GB etc
Packing: Coil or special packing with plate
status: soft , semi-soft
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    302 Stainless Steel Spring Wire Bright Surface Based On ASTM A580 Standard

    302 stainless steel spring wire based on ASTM A580 spring wire


    Partner With ToponeWire, Customize Your Solutions, and Take Your Company to a World-Class Level


    ToponeWire has a long history of producing only the highest quality stainless steel wire for the spring industry. Our customers have come to rely on the engineering and metallurgical services provided by Sumiden Wire. When you need a reliable, domestic producer who can provide unsurpassed quality, service, and delivery, give us a call.


    Toponewire has stocks of most types of spring wire, which is the raw material in the production of springs and spring solutions.

    This includes black wire, oil-hardened and stainless steel wire, covered bronze wire and beryllium-copper wire.

    Our suppliers of raw materials are recognized steel and wire producers. In this way we ensure the production of your requirement for specialized solutions and uniform springs regardless of the quantity and

    size of the springs.

    Products Details

    1 Excellent quality, high cost performance, suitable for manufacturing precision springs

    2 Excellent microstructure, durable, can be widely used in automotive, office equipment and household appliances

    3 Market-oriented, adhere to using of high-quality imported materials and Baosteel materials

    Quality Standard

    ASTM A580 2006 Standard Specification for Stainless Steel Wire

    Chemical Composition(%)

    Steel GradeCSiMnPSCrNiN
    3020.15max.1.00max.2.00max.0.045 max0.030 max17.0-19.008.0-10.00.10max.

    Mechanical Properties(Cold finished)

    Steel GradeTensile Strength (Mpa)Yield Strength (Mpa)Elongation (%)Area Reduction Ratio C (%)
    302620 min310 min30 min40 min

    Mechanical Properties(Annealed)


    Steel GradeTensile Strength (Mpa)Yield Strength (Mpa)Elongation (%)Area Reduction Ratio C (%)
    302520 min210 min35 min50 min

    Spring wire


    Spring wire is a complex raw material. The wire ensures the spring's ability to change form when it is coiled or processed in some other way. At the same time the wire needs to have a strength and hardness that ensures its stability when after compression or expansion the spring returns to its original form.

    The tensile strength is important

    Most springs are produced from spring wire - also known as carbon wire - where the carbon content is between 0.5 and 1.2 percent depending on the requirement for the tensile strength.

    Spring wires with a higher tensile strength are used when there are increased requirements for the wear resistance of the spring.

    The tensile strength is derived from the spring wire going through a special hardening and subsequent pulling process.

    Oil-hardened or stainless-steel wire

    Toponewire has many years of experience with specialized springs so we know which raw materials best suit your needs.

    This may be oil-hardened wire or springs in a stainless material, which puts different demands on raw materials and manufacture.

    Seawater-resistant wire

    For example, if the spring needs to be seawater-resistant or non-magnetic, Toponewire uses hard-drawn bronze wire.


    Quality 302 Stainless Steel Spring Wire Bright Surface Based On ASTM A580 Standard for sale
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