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    S1 Steel

    Steel
    Tool Steel
    S1
    Steel Grades
    Product Overview
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    Technical Datasheet

    S1 is a chromium-tungsten, impact resistant, cold work tool steel with an excellent edge retention, dimensional stability, good toughness and full hardenability.

    On this Page

    1. Select Your Steel Length
    2. Standard values
    3. General Information

    Purchase S1 Tool Steel Online

    Select Your Steel Length below

    Imperial and Metric Steel Sizes for Sale

    Imperial Steel Size

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    Metric Steel Size

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    $mart Flat Stock Metric [$martM]

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    S1 Tool Steel Standard values

    Working hardness: 56 HRC - 60 HRC
    Delivery condition: max. 229HB

    Chemical composition in %

    C

    0.550000

    0.55
    –

    0.650000

    0.65
    Si

    0.700000

    0.7
    –

    1.000000

    1
    Mn

    0.150000

    0.15
    –

    0.450000

    0.45
    P

    0.000000

    0
    –

    0.030000

    0.03
    S

    0.000000

    0
    –

    0.030000

    0.03
    Cr

    0.900000

    0.9
    –

    1.200000

    1.2
    V

    0.100000

    0.1
    –

    0.200000

    0.2
    W

    1.700000

    1.7
    –

    2.200000

    2.2

    S1 Tool Steel Technical Data

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    S1 Tool Steel Technical Properties

    Steel grade with focus on cold work, with full hardenability, excellent toughness, dimensional stability and impact strength.

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    S1 Tool Steel Applications

    blanking tools, dies, punches, forming dies, embossing tools, coining tools, tableting punches, plug-in tools, trimming tools, cold shear knives, riveting pins, hand chisels, pneumatic chisels, centre punches, ejectors, woodworking tools

    Chemical designation: Working hardness: 56 HRC - 60 HRC
    Delivery condition: max. 229HB

    C

    0.550000

    0.55
    –

    0.650000

    0.65
    Si

    0.700000

    0.7
    –

    1.000000

    1
    Mn

    0.150000

    0.15
    –

    0.450000

    0.45
    P

    0.000000

    0
    –

    0.030000

    0.03
    S

    0.000000

    0
    –

    0.030000

    0.03
    Cr

    0.900000

    0.9
    –

    1.200000

    1.2
    V

    0.100000

    0.1
    –

    0.200000

    0.2
    W

    1.700000

    1.7
    –

    2.200000

    2.2

    Steel grade with focus on cold work, with full hardenability, excellent toughness, dimensional stability and impact strength.

    blanking tools, dies, punches, forming dies, embossing tools, coining tools, tableting punches, plug-in tools, trimming tools, cold shear knives, riveting pins, hand chisels, pneumatic chisels, centre punches, ejectors, woodworking tools

    S1 General Information

    The added chromium and tungsten in S1 give this steel grade its excellent edge resistance and dimensional stability. In addition to that, the addition of tungsten gives S1 its toughness and wear resistance. Silicon in this steel grade forms a microstructure to resist distortion in the tempered condition. These additions make S1 a reliable choice for tools which have to withstand high stresses and for the use in cold and hot work.

     

    Heat treatment

    Annealing

    To anneal tool steel S1, heat the parts uniformly to a temperature of 1310-1382°F (710-750°C) and cool them down slowly in the furnace at a rate of 50-68°F (10-20°C) per hour to 1112°F (600°C). Finish this process with cooling the parts further in air.

     

    Stress relieving

    Uniformly and slowly heat the work pieces through to 1202°F (650°C) after rough machining, then slowly cool in air. Then finish machining the parts.

     

    Hardening

    Preheat the parts uniformly to a temperature of 1202°F (650°C), then increase the temperature to a range of 1652-1742°F (900-950°C). Finish the process by quenching the material.










    Quenching media

    • Oil
    • Salt bath (356-428°FF (180-220°C))

     

    Tempering

    Slowly heat the S1 tool steel parts to the required tempering temperature and soak the material for 1 hours per inch (25.4 mm) thickness and follow with cooling the parts down in air.

    For our tempering diagram, please click here.

     

    Machinability

    Forging

    To forge S1 preheat the work pieces uniformly to a temperature of 1832°F (1000°C), the forging temperature range is between 1472-1832°F (800-1000°C). To prevent stress to the material cool it in the furnace after forging.

     

    Welding

    Ensure the base metal is clean from contamination such as grease, rust, oil and moisture, remove sharp edges and make sure to check for surface cracks before welding.

    When choosing filler metals, the tensile strength and yield strength of the base metal should be taken in consideration and either match the base metal or should be stronger than the base metal.

     

    Surface treatment

    Nitriding

    This steel grade is suitable to be gas nitrated as well as bath nitrated.

     

    Disclaimer

    The data shown here has been compiled with the greatest diligence and is regularly updated with regard to the correctness and completeness of its content. The content is indicative only and should not be taken as a warranty of specific properties of the product described or a warranty of suitability for a particular purpose. All information presented is given in good faith and no liability will be accepted for actions taken by third parties in reliance on this information. ABRAMS Industries reserves the right to change or amend the information given here in full or parts without prior notice.