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GB 2Cr13 | JIS SUS420J1 | DIN X20Cr13 / 1.4021 | ASTM 420/S42000 Stanless Steel

Port: Hu nan

SUS420J1 stainless steel, 420 stainless steel, 420 alloy tool steel, 420 alloy steel, 420 alloy structural steel, s42000 stainless steel

Alloy Structural Steel, Alloy Tool Steel, Carbon Structural Steel, Carbon Tool Steel, Bearing Steel, Spring Steel ,Stainless Steel, Refractory Steel, Roll Steel, Pinion Steel. Additionally, the company also has the capacity to forge round steel, steel flat, square steel, module, shaft and roller


  • Quick Details

    1: 420 steel introduction

         420 stainless steel is a martensitic stainless steel that has the same corrosion resistance as 410, but also has higher strength and hardness. It also retains its magnetic properties under annealed and hardened conditions. Alloy 420 has a higher carbon content than alloy 410, has good ductility in the annealed state, and is capable of hardening to a Rockwell hardness of 50 HRC, the highest hardness of the 12% chromium grade.

    2: 420 Steel equivalent

    Country Japan Germany USA China
    Standard JIS DIN(W-Nr.) ASTM GB/T
    Grade SUS420J1 X20Cr13 / 1.4021 420 2Cr13

    3: 420 steel chemical composition

    Grade C≤ Si Mn P S Cr Ni
    420 0.15 1.00 1.00 0.04 0.03 12.0-14.0 /
    SUS420J1 0.15 1.00 1.00 0.04 0.03 12.0-14.0 0.60
    X20Cr13 / 1.4021 0.25 1.00 1.00 0.04 0.03 12.0-14.0 /
    0.25 1.00 1.00 0.035 0.03 12.0-14.0 0.60

    4: 420 steel mechanical properties

        The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as annealed, Solid Solution. If you want to know the properties, kindly contact the salesman.

    5: 420 steel overviews

    Size Round Dia 0.1-500mm
    Plate/Flat/Block Thickness
    Heat treatment Annealed ; Solid Solution
    Surface condition Black; Peeled; Polished; Machined;Sand blast etc
    Delivery condition Forged; Hot rolled; Cold drawn
    Test Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. 
    Payment terms T/T;L/C;/Money gram/ Paypal
    Trade terms FOB; CIF; C&F; etc..
    Delivery time 30-45 days
    Application  420 is widely used in aviation, power, petrochemical, ship, machinery, electronics, environmental protection and other industries.

    6: Heat Treatment

          420 may be achieved by slowly increasing the temperature to 1400° F, and then heated to 2000° -2200° F for hot working. The temperature is typically maintained above 1600° F. After work, cool the furnace slowly to avoid cracking. 420 can only withstand slight cold working.

          Annealing: 420 stainless steel can be heated at 840 to 900° C, then slowly cooled at 600° C, and then air cooled.

          Hardening: Heat at 980-1035° C and then air or oil quench. For parts, oil quenching is generally preferred.

           Tempering: 150-370℃ for high hardness and good mechanical properties. 420 shall not be tempered between 425 and 600° C.

    7: Delivery condition
        For hot forged  bar, usually the delivery condition is hot forged, annealed/solid solution, rough turned/Black surface.
        For hot rolled bar, usually the delivery condition is hot rolled, annealed/solid solution, Black surface.
        For hot rolled plate, usually the delivery condition is hot rolled, annealed/solid solution, black surface.

        For cold drawn bar, usually the delivery condition is cold drawn, annealed/QT, peeled/black surface