Stainless Spring Steel Strip

Spring Hard

Temper: 301 Spring Hard
Tensile Strength: 1750 MPa min.
Yield Strength: 1550 Mpa min.
Hardness Vickers: 550-620 HV
Elongation%: 1% min.

1/2 Hard

Temper: 301 1/2 Hard
Tensile Strength: 930 MPa min.
Yield Strength: 510 Mpa min.
Hardness Vickers: 310-370 HV
Elongation%: 18% min.

3/4 Hard

Temper: 301 3/4 Hard
Tensile Strength: 1130 MPa min.
Yield Strength: 745 Mpa min.
Hardness Vickers: 370-430 HV
Elongation%: 5% min.

Full Hard

Temper: 301 Full Hard
Tensile Strength: 1320 MPa min.
Yield Strength: 1030 Mpa min.
Hardness Vickers: 430-490 HV
Elongation%: 4% min.

Extra Hard

Temper: 301 Extra Hard
Tensile Strength: 1570 MPa min.
Yield Strength: 1275 Mpa min.
Hardness Vickers: 490-550 HV
Elongation%: 3% min.

1/4 Hard

Temper: 301 1/4 Hard
Tensile Strength: 780 MPa min.
Yield Strength: 470 Mpa min.
Hardness Vickers: 250-310 HV
Elongation%: 25% min.

301 Stainless Spring Steel Strip

DIN-EN 1.4310, UNS S30100, 1/4H (AMS 5517), 1/2H (AMS 5518), 3/4H (AMS 5902), FH (AMS 5519), 301 Extra Hard, 301 Spring Hard

301 stainless steel strip is a chromium-nickel austenitic stainless steel that is known for its high strength and good ductility as it can be cold worked. As a modification of the Type 304, the content of chromium and nickel in the steel has been decreased in order to increase the range of cold work-hardening temperatures. As a result, higher tensile strengths can be achieved by rolling without sacrificing as much ductility as might be the case when using Type 304.

Cold Working Of 301 Stainless Steel Strip

301 stainless steel strip can be cold worked to achieve high strength and ductility. It cannot be hardened by heat treatment in any way. Its high strength and excellent corrosion resistance make Type 301 stainless steel strip an excellent choice for a wide range of applications. Structural parts for aircraft, trailers, and diaphragms are typical uses.

Available Sizes & Forms

  • Thickness Range: 0.03-2 mm (.001″-.079″)
  • Slitting Width: 2-300 mm (.08″-12″)
  • Materials can be delivered in forms of strip coils and cut-to-length.
  • Gauge Tolerance

  • Thickness Tolerance: +/- 0.005 mm
  • Width Tolerance : +/- 0.05 mm
  • Straightness

    Maximum deviation is 1.25 mm per 1000 mm.

    Surface Finish

  • 2H -work hardened and temper rolled for higher tensile stength
  • 2R/BA -cold rolled, bright annealed and skin passed. Smooth, bright surface.
  • Surface Roughness

  • Surface roughness values for materials in Full Hard is between Ra 0.20-0.40 µm.
  • Surface roughness values for materials in Super Hard is between Ra 0.10-0.20 µm.
  • Specifications

    Our type 301 stainless steel is covered by the following specifications:

    ASTM A 666
    ASTM A 240

    Edging Treatment

  • Mill Edge – untreated edge, generally with a somewhat uneven contour.
  • Slit Edge – edge with the shearing burr not removed.
  • Deburred Edge – slit edge from which the burr has been removed.
  • Round Edge – edge completely rounded.
  • Corrosion Resistance

    The corrosion resistance of Type 301 is comparable to that of Type 304 in milder service conditions. It has excellent resistance to atmospheric corrosion, food, juices, and road de-icing salts.

    Heat Treatment

    Type 301 stainless steel cannot be hardened by heat treatment in any way.


    It is easy to form and draw Type 301. In severe drawing and forming operations, intermediate annealing may be necessary because of its high work-hardening rate.

    301 Stainless Steel Strip Used For What?

    Type 301 is known for its high strength and excellent corrosion resistance. It has a tensile strength up to 1800 Mpa (260 ksi) and is used in parts that require high strength but are moderately drawn or formed. A variety of applications and industries can benefit from type 301 stainless steel strip because of its versatility.

    constant force spring

    Constant Force Springs


    Stamping Parts



    battery contact

    Battery Contact Clip

    True Quality

    Building A Strong Foundation On Quality

    Over the years, we have worked with the world’s fourth biggest steel producer Posco as strategic partnership, includes cooperation in raw materials procurement, means we have access to a reliable supply of high quality mother coils that are used in our manufacturing process.

    Posco Steel

    Chemical Composition

    301 Stainless Steel Strip

    The following table summarizes the chemical composition of type 301 stainless steel strip


    • Carbon 0.15 max.
    • Manganese 2.00 max.
    • Phosphorus 0.04 max.
    • Sulfur 0.03 max.


    • Silicon 1.00 max.
    • Chromium 16.00 - 18.00
    • Nickel 6.00 - 8.00
    • Nitrogen 0.10 max.

    Our Packaging

    Your Material Is Safely Protected

    We have a professional team that can implement advanced packaging technology. This will ensure that our products are not damaged during transportation and we can ship almost anywhere internationally.

    stainless steel strip packaging
    steel packaging
    Contact Us

    Let's Work Together

    As a leading precision stainless strip manufacturer, Shimfer is committed to advancing precision strip through partnerships with progressive companies.Together, we can achieve the impossible!

    Our Location

    Big Brands Favorite

    They Trust Us

    Apple, Huawei and Samsung chosen our precision stainless strip materials to apply on their well-known electronic products. They were very satisfied with the materials’ quality and mechanical properties.

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    Our Customers

    What People Say

    Our ability to develop customized material solutions comes from working closely with our customers so we can better understand their needs.

    "While we tried several stainless spring steel suppliers throughout China, only Shimfer's 301 SH material met our requirements in terms of strength, hardness, and mechanical properties."
    Team Of Aote Spring
    Production Technicians
    "We're a metal stamping company that's worked with Shimfer for over 5 years. They consistently deliver a superior product to us. They're always on time and on budget."
    Scott Johnson
    Project Engineer
    "We test and measure our materials before they are sent out. The strip Shimfer has delivered is manufactured the same way every time, and superior quality and precision are maintained."
    Elle Carsen
    QC at Distribution Center
    "We are using Shimfer's high-strength stainless steel strip materials as a tool to help us achieve our goals after Shimfer presented their products to our company."
    Neil Fisher
    R&D Engineer at Connector Inc

    Popular Question

    If you’d like to discuss how we can help with your next project, or for more information about our specific capabilities, please reach out to our team, we love a challenge, and we’d be delighted to hear about yours.

    Absolutely. We offer all of our customers FREE sample for testing before the bulk order.

    We have extensive inventory of materials specification, usually our MOQ could be as less as 30 kg. For customized sizes, the trial order MOQ is 500 kg each dimension.

    The production process usually takes 20-25 days from the time an order is placed to the time it is completed. For order quantity less than 500 kg, we can deliver it within two weeks.

    Tipically, we have coil ID of 300 mm, 400 mm and 500 mm for customers' choice.

    At Shimfer, we only manfacture and distribute Austenitic stainless grade in 300 series and type 201 in high tensile strength.

    We provide the following limited warranty: Customers are required to run 10% of a skid coil prior to submitting a claim, all claims must be submitted in writing with a supporting sample and photo of the defect. We will not honor claims more than 90 days after receipt of materials.