• EN 10277-3 Standard

    W.NR.: 1.0765/36SMnPb14

    High Machinability Steel For Direct Hardening

    CHEMICAL COMPOSITION

    Heat analysis according to the EN 10277-3 standard

    C %Si %Mn %P %S %Pb %
    From0,32–1,30–0,100,15
    To0,390,401,700,060,180,35

    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≤10500da 660 a 9606
    >10≤16440da 620 a 9206
    >16≤40da 166 a 222da 560 a 750390da 600 a 9007
    >40≤63da 166 a 219da 560 a 740360da 580 a 8408
    >63≤100da 163 a 219da 550 a 740340da 560 a 8209

    * 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):

    UNI 4838AFNOR 35-562EN 10087
     CF 35 SMnPb 1035 MF 6 +Pb 36SMnPb14