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DIN 30CrNiMo16-6/1.6747 | BS EN30B/835M30 Engineering Steel

Port: Hu nan

engineering steel, cold work tool steel, hot work tool steel, plastic mold steel, spring steel, high speed steel, 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: EN30B steel introduction
        EN30B is a 4% nickel air/oil hardening steel. It achieves a good through hardness with high strength and toughness. It is capable of taking a good polish and is widely used as drill bit material
    2: EN30B Steel equivalent
    Country Germany British
    Standard EN10250 BS970
    Grade 30CrNiMo16-6/1.6747 EN30B/835M30
    3: EN30B steel chemical composition
    Grade C Si Mn P S Cr Mo Ni
    1.6747 0.26-0.33 0.4 0.5-0.8 0.025 0.025 1.2-1.5 0.3-0.6 3.3-4.3
    EN30B 0.28-0.33 0.1-0.35 0.4-0.6 0.025 0.015 1.1-1.24 0.2-0.4 4-4.3
    4: EN30B 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: EN30B steel overviews
    Size Round Dia 6-1000mm
    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 EN30B alloy steels are used for Down-hole tools, heavy duty construction tools, rock drilling bit bodies, highly stressed gears and transmission components, heavy duty shafts and rolls.

    6:Heat Treatment 

    Forging – Commence 1200℃ (2190℉) Max.
    Double Annealing – Austenitize 850℃ to 865℃ (1560℉ to 1590℉)Quench and tempered
    Machinability: Double Anneal at 635℃ to 650℃ (1175℉ to 1200℉)Do not exceed 660℃ (1220℉)
        A Hardness of 269 HB Max is achievable
    Normalize, Temper & Stress Relieve - Austenitize 850℃ to 865℃ (1560℉ to 1590℉).Air cool to room temperature
        Temper 530℃ (990℉), air cool
        Stress Relieve 500℃ (930℉), air cool
    Hardened & Tempered Austenitize 850℃ to 865℃ (1560℉ to 1590℉) Forced air cool or oil quench. Temper at 200℃ (400℉), air cool.


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