• EN 10277-3 Standard

    W.NR.: 1.0727/46S20

    High Machinability Steel For Direct Hardening

    CHEMICAL COMPOSITION

    Heat analysis according to the EN 10277-3 standard

    C %Si %Mn %P %S %
    From0,42–0,70–0,15
    To0,500,401,100,060,25

    MECHANICAL FEATURES

    According to the EN 10277-3 standard

    Thickness
    mm    		Rolled + Peeled Rolled
    ( +SH )    		Cold Drawn
    ( +C )
    Hardness HBRm (MPa)Rp0,2  minimumRm (MPa)A5 %
    (MPa)minimum
    ≥5≤10570da 740 a 9805
    >10≤16470da 690 a 9306
    >16≤40da 175 a 225da 590 a 760400da 640 a 8807
    >40≤63da 172 a 216da 580 a 730380da 610 a 8508
    >63≤100da 166 a 211da 560 a 710340da 580 a 8208

    * Delivery condition: as rolled.

    PROPERTIES

    Machinability:
    This steel grade generally shows a quite good machinability on machine tools; machinability decreases with the increase of carbon, silicon and manganese content.

    Weldability:
    Due to the high sulphur and phophorus content free-cutting steels for direct hardening are not recommended for welding.

    Notes:

    CORRESPONDENCE WITH OTHER STANDARDS (purely as an indication):

    ISO 683-9DIN 1651EN 10087
     46 S 2045S20 45S20