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GB 05Cr17Ni4Cr4Nb | JIS SUS 630 | DIN 1.4542 | ASTM 17-4PH / 630 Stainless Steel

Port: Hu nan

SUS 630 stainless steel, 630 stainless steel, 630 alloy tool steel, 630 alloy steel, 630 alloy structural 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: 630 steel introduction

          630 stainless steel is martensitic precipitation hardening type stainless steel. Its properties are characterized by easy adjustment of strength grade, which can be adjusted by changing the heat treatment process. Martensite transformation and aging treatment to form precipitation hardening phase are the main strengthening means. 630 stainless steel has good attenuation performance, corrosion fatigue resistance and water drop resistance.

    2: 630 Steel equivalent

    Country Japan Germany USA China
    Standard JIS DIN(W-Nr.) ASTM GB/T
    Grade SUS 630 1.4542 17-4PH / 630 05Cr17Ni4Cr4Nb

    3: 630 steel chemical composition

    Grade C≤ Si Mn P S Cr Ni    Nb   
    17-4PH / 630
    0.07 1.00 1.00 0.04 0.03 15.0-17.5 3.00-5.00 0.15-0.45 
    SUS 630 0.07 1.00 1.00 0.035 0.03 15.0-17.5 3.00-5.00 0.15-0.45 
    1.4542 0.07 1.00 1.00 0.035 0.03 15.5-17.5 3.00-5.00 0.15-0.45 

    4: 630 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: 630 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  630 is suitable for offshore platforms, helidecks, other platforms, food industry, pulp and paper industry, aerospace (turbine blades), mechanical components, nuclear waste drums, 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