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GB 9Mn2V | DIN 1.2842 | BS B02 | ASTM O2 Cold Work Tool 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

E-mail：export@qilucs.com

Product Detail
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    1: AISI O2 steel introduction

        AISI O2 tool steel is an oil hardening tool steel which is supplied in the annealed condition and characterised by its characteristics of offering good durability. Tool steel O2 is with excellent wear resistance and its ability to hold a good cutting edge. 02 steel is a good quality general purpose tool steel often used where the expense of a high carbon high chromium tool steel would not be justified.


    2: AISI O2 Steel equivalent
    Country China Japan Germany USA UK
    Standard GB/T 1299 JIS G4404 DIN EN ISO4957 ASTM A681 BS 4659
    Grade 9Mn2V
    		1.2842 / 90MnCrV8 O2 B02

    3: AISI O2 steel chemical composition
    Grade C Mn P S Si Cr V Mo
    O2 / T31502 0.85 0.95 1.40 1.80 0.03 0.03 . . . 0.50 . . . 0.50 . . . 0.30 0.30
    1.2842 / 90MnCrV8 0.85 0.95 1.80 2.20 0.03 0.03 0.10 0.40 0.20 0.50 0.05 0.20 . . .
    B02 0.85 0.95 1.50 1.80 0.035 0.035 . . . 0.40 . . . . . . . . . 0.25 . . .
    9Mn2V 0.85 0.95 1.70 2.00 0.03 0.03 . . . 0.40 . . . . . . 0.10 0.25 . . .

    4: AISI O2 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: AISI O2 steel overviews
    Size Round Dia 6-1200mm
    Plate/Flat/Block Thickness
    6mm-500mm
    Width
    20mm-1000mm
    Process EAF+LF+VD+Forged+Heat treatment(optional)
    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..
    Packing Standard Packages, or as Customers Request
    Delivery time 30-45 days
    Application  AISI O2 tool steel is used as tool steel for universal use, highly stressed plastic moulds, mould inserts for high hardness and abrasive stress, blanking and stamping tools for all types cutting sheet metals up to 6 mm thickness, cold forming dies, cutting and punching tools of all types, shear blades for paper, plastic and metalworking industries, reamers, thread chasers and cutting tools, pressure pads, guide pins, taps, measuring tools, precision calipers and plug gauges, woodworking tools, plastic and rubber compression moulds, deep drawing tools, clipping.


    6. AISI O2 Tool Steel Heat Treatment

        Annealing : 680 – 720 °C

        Hardness after annealing : Max. 220 HB

        Stress relieving : Approx. 650 °C

        Hot forming : 1050 – 850 °C

        Hardening : 790 – 820 °C

        Quenching media : Oil, Salt bath ( 220 – 250 °C ) up to 20 mm thickness

        Hardness after quenching : 63 – 65 HRCHardness after tempering :

    100℃ 200℃ 300℃ 400℃
    64HRC 62HRC 57HRC 50HRC


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

        For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.