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W.-Nr. 1.4125 / DIN X105CrMo17 / AISI 440C high carbon stainless steel plates and sheets

Categories martensitic stainless steel
Place of Origin: Jiangsu
Brand Name: Changjiang
Model Number: 440C
Certification: SGS, RoHS
Packaging Details: iron steel pallets
Delivery Time: within 45 working days after receipt 30% of value.
Payment Terms: T/T
Supply Ability: 500 tons monthly
MOQ: 1000kgs
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    W.-Nr. 1.4125 / DIN X105CrMo17 / AISI 440C high carbon stainless steel plates and sheets

    High carbon stainless steel plates and sheets W.-Nr. 1.4125 / DIN X105CrMo17 / AISI 440C / JIS SUS440C

    Designation by Standards


    GB 9Cr18




    AISI 440C

    UNS S44004

    JIS SUS 440C

    EN 1.4125

    DIN X105CrMo17

    AS2837-1986 440C

    Chemical Composition (in weight %)

    440C0.95 - 1.201.00 max1.00 max16.00 - 18.000.75 max-0.60


    This is a high carbon martensitic stainless with moderate corrosion resistance good strength
    and the ability to obtain and keep excellent hardness HRC 60 and wear resistance. export at ahoneststeel dot com

    Ball bearings and races, gage blocks, molds and dies, cutlery, valve components, knives and
    measuring instrumentsand other products with highest hardness and wear resistance.

    Physical properties (avarage values) at ambient temperature
    Modulus of elasticity [103x N/mm2]: 200

    Density [g/cm3]: 7.67

    Thermal conductivity [W/m.K]: 24.2

    Electric resistivity [Ohm mm2/m]: 0.60

    Specific heat capacity[J/g.K]: 0.46

    Coefficient of Linear Thermal Expansion 10-6oC-1

    20- 100oC20- 200oC20- 300oC20- 400oC20- 500oC20- 600oC20- 700oC

    Soft Annealing
    Heat to 820-860oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 269.
    Harden from a temperature of 1000-1050oC followed by oil or quenching.

    Hardness after quenching is min. 58 HRC.
    Tempering temperature: See the data bellow.

    Tempering Temperature (oC) vs. Hardness (HRC)


    Pre-heat to 760oC, then bring slowly up to 1038-1204oC before proceeding.

    Do not work this material below 927oC.

    Cool material slowly after working and once at room temperature, anneal fully.

    Best machined in the annealed condition.

    Tough, stringy chips can be best handled by the use of chip breakers.

    Carbide or ceramic tooling is recommended.

    Cold Working
    This alloy is considered only slightly cold workable by common practices.
    Corrosion ResistanceResistant to a wide variety of media including fresh water, steam, petroleum products and alcohol.
    WeldingThis alloy is not commonly welded due to its tendency to air harden.

    If it must be welded, preheat to 260oC and post weld treat at 732-760oC for 6 hours followed

    by a slow furnace cooling to avoid cracking. Use similar filler metal.

    Delivery state


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    export at ahoneststeel dot ocm

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