Mat.No. 1.1620, DIN C70W2

Mat.No. 1.1620, DIN C70W2

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  Designation by Standards   Mat. No. DIN EN AISI 1.1620 C70W2 UC70KU -   Chemical Composition (in weight %)   C Si Mn Cr Mo Ni V W Others 0.70 0.20 0.25 - - - - - -   Description Low alloyed carbon tool steel with good hardenability. Applications Forging hammers and tools, punchers for paper and skin, agricultural tools, tools for soft and medium hard rocks. Physical properties (avarage values) at ambient temperature Modulus of elasticity [103 x N/mm2...


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    Designation by Standards

     

    Mat. No. DIN EN AISI
    1.1620 C70W2 UC70KU -

     

    Chemical Composition (in weight %)

     

    C Si Mn Cr Mo Ni V W Others
    0.70 0.20 0.25 - - - - - -

     

    Description
    Low alloyed carbon tool steel with good hardenability.

    Applications
    Forging hammers and tools, punchers for paper and skin, agricultural tools, tools for soft and medium hard rocks.

    Physical properties (avarage values) at ambient temperature
    Modulus of elasticity [103 x N/mm2]: approx. 210
    Density [g/cm3]: 7.80

    Coefficient of Linear Thermal Expansion 10-6 oC-1

     

    20-100oC 20-200oC 20-300oC 20-400oC 20-500oC
    11.1 12.1 12.9 13.5 13.9

     

    Soft Annealing
    Heat to 680-720oC, cool slowly in furnace.

    Stress Relieving
    Stress relieving to remove machining stresses should be carried out by heating to approx. 600-650oC, holding for 1-2 hours at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.

    Hardening
    Harden from a temperature of 790-820oC followed by water quenching. Hardness after quenching is 63 HRC.

    Tempering
    Tempering temperature: See the data bellow.

    Tempering Temperature (oC) vs. Hardness (HRC)

     

    100oC 150oC 200oC 250oC 300oC 350oC 400oC 450oC
    66 65 63 59 53.5 49 45 41

     

    Tempering Diagram

    Forging
    Hot forming temperature: 1050-800oC.

    Machinability
    No data.

    Disclaimer
    The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other puposes. There is no representation that the recipient of this literature will receive updated editions as the become available.

     

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