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    High Speed Steel

    High Speed Steel is being manufactured by: Conventional ingot route

    Powmex Steels Division manufactures products for full range of tool requirements of various industries which conform to international standards.

    The table below gives different grades manufactured, their chemical composition and equivalent international standards.

    Chemical Composition
    Grade C Si Mn P S Cr Mo V W Co
    M2 0.82-0.94 0.15-0.45 0.15-0.40 0.030 max 0.030 max 3.75-4.50 4.70-5.50 1.70-2.05 5.65-6.75 1.00 max
    M3 1.15-1.27 0.15-0.45 0.20-0.40 0.035 max 0.30 max 3.75-4.50 4.70-5.20 2.70-3.25 6.00-6.75 1.00 max
    M15 1.45-1.60 0.40 max 0.40 max 0.035 max 0.030 max 4.50-5.00 2.75-3.25 4.75-5.25 6.25-7.00 4.50-5.50
    M35 0.85-0.96 0.15-0.45 0.15-0.40 0.035 max 0.030 max 3.75-4.50 4.70-5.50 1.70-2.20 5.75-6.75 4.50-5.25
    M42 1.05-1.15 0.15-0.60 0.15-0.40 0.035 max 0.030 max 3.50-4.50 9.00-10.00 0.95-1.35 1.15-1.85 7.50-8.75
    T42 1.20-1.40 0.15-0.45 0.20-0.40 0.035 max 0.030 max 3.75-4.50 3.00-4.00 2.80-3.50 8.80-10.70 8.80-10.70
    4341 0.83-0.93 0.15-0.45 0.15-0.40 0.035 max 0.030 max 3.8-4.5 2.5-3.5 1.3-1.7 3.5-4.2 NIL
    A2 0.95-1.85 0.10-0.50 0.40-1.00 0.030 max 0.300 max 4.75-5.50 0.90-1.40 0.15-0.50 NIL NIL
    D2 1.50-1.60 0.20-0.60 0.15-0.45 0.035 max 0.030 max 11.00-12.00 0.70-0.90 0.90-1.10 NIL NIL
    D3 1.90-2.20 0.10-0.40 0.15-0.45 0.035 max 0.0.30 max 11.00-12.00 NIL NIL NIL NIL
    M4 1.25-1.40 0.20-0.45 0.15-0.40 0.030 max 0.030 max 3.75-4.75 4.25-5.50 3.75-4.50 5.25-6.50 1.00 max
    M4 1.25-1.40 0.20-0.45 0.15-0.40 0.030 max 0.030 max 3.75-4.25 4.00-4.50 0.90-1.10 NIL NIL
    M50 0.77-0.85 0.25 max 0.35 max 0.030 max 0.030 max 3.75-4.25 4.00-4.50 0.90-1.10 NIL NIL
    S2M 0.47-0.55 0.90-1.10 0.30-0.50 0.040 max 0.040 max 0.25 max 0.40-0.55 NIL NIL NIL
    S7 0.45-0.55 0.20-1.00 0.20-0.90 0.030 max 0.030 max 3.00-3.50 1.30-1.80 0.35 max NIL NIL
    Manufacturing Range (applicable for all grades):
    (All dimensions in mm)
    HIGH SPEED STEEL
    Rounds Squares Flats
    Size Condition Size Condition Thickness(T) Width(W) (W-T) Condition
    5.0 -13.40 CG 7.2,8.8,10.3,10.5 HRA 8 – 15 18 – 35 >8 HRA
    13.50 -54.00 HRAP 11,13.3,13.5,17 HRA 15.1 – 30 25 – 60 >8 HRA
    57.00 - 160.00 FAT 17.5,20.5,21,22 HRA 32 -110 60 - 120   FA
    13.00 - 56.00 HRA 26.5,27 HRA        
        60.00 – 120.00 FA        

    Length

    80 DIA

    Upto 80 dia 2 - 4 Mtrs. with 10%
    shorts down to 1 Mtr

    81 - 120 DIA

    81 - 120 dia, 1.5 – 4 Mtrs with 10%
    shorts down to 1 Mtr

    121-180 DIA

    121 -180 dia. 1.5 -3 Mtrs with 10%
    shorts down to 1 Mtr

    Specific customer requirements for different grades and chemical composition can be supplied on request.