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GB Q355B | DIN S355JR Engineering Steel

Port: Hu nan

Q355B engineering steel, Q355B alloy tool steel, S355JR carbon steel, S355JR alloy tool 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: DIN S355JR steel introduction

         S355JR is a low alloy high strength structural steel conforming to European standard EN 10025. S355JR steel in China is low alloy high strength structural steel with hardness of 70-80B and yield strength of 300-400MPa. And has very good processing formability and welding performance, as well as excellent low temperature toughness.

    2: DIN S355JR Steel equivalent

    Country China Japan Germany USA British
    Standard GB/T 1591 JIS DIN (W-Nr.)
    EN 10025-2 / DIN17100
    Grade Q355B

    3: DIN S355JR steel chemical composition

    Grade C Si Mn P S Cr Cu Ni
    S355JR 0.22 0.55 1.60 0.025 0.025 / 0.55 /
    Q355B 0.24 0.55 1.60 0.035 0.035 0.30 0.40 0.30

    4: DIN S355JR 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 normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.

    5: DIN S355JR steel overviews

    Size Round Dia 6-1200mm
    Plate/Flat/Block Thickness
    Heat treatment Normalized ; Annealed ; Quenched ; Tempered
    Surface condition Black; Peeled; Polished; Machined; Grinded; Turned; Milled
    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  S355JR is used for medium strength structural parts of aircraft, propeller blades, transportation vehicles and building structural parts, and medium strength bolts and rivets of aircraft. It is also applied to aircraft skin, frame, rib, spar, rivet, etc.

    6: 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