Page 368 - Carmex - Metric Catalog 2021
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                                                       Mill-Thread Technical Section





            Cutting Data


            Slim MT type



            MT17    Advanced New Sub-Micron carbide grade with multi-layer PVD coating, provides high
                    performance in all machining conditions. The new grade ensures high abrasive wear
                    resistance, machining wide range of materials including steels, tough and difficult
                    materials and high alloyed steels.

                                                                                      Cutting Conditions
              ISO           Material                      Conditions
                                                                                   Cutting Speed   Feed Rate
                                                                                     (m/min)       (mm/tooth)
                                             Annealed < 0.25 % C                     110-220
                                             Annealed ≥ 0.25 % C                     100-210
                   Non-Alloy Steel and Cast Steel,   Annealed ≥ 0.55 % C              90-150    ( 0.055 * D ) / 22
                   Free Cutting Steel
                                             Quenched & Tempered < 0.55 % C           70-140
                                             Quenched & Tempered ≥ 0.55 % C           55-70
              P    Low Alloy Steel and Cast Steel   Annealed                          60-110
                   (less than 5 % alloying elements  Quenched & Tempered              60-90
                                                                                                ( 0.055 * D ) / 22
                                             Annealed                                 55-90
                   High Alloy Steel, Cast Steel, and
                   Tool Steel
                                             Quenched & Tempered                      45-80
                                             Ferritic                                 90-200
                                             Martensitic                              80-160    ( 0.055 * D ) / 22
              M    Stainless Steel and Cast Steel  Austenitic                         60-110
                                             High alloy Austenitic & Duplex           40-70     ( 0.045 * D ) / 22

                                             Ferritic                                 90-125
                   Cast Iron Nodular (GGG)
                                             Pearlitic                                90-110

                                             Ferritic                                110-145
              K    Grey Cast Iron (GG)                                                          ( 0.055 * D ) / 22
                                             Pearlitic                                80-125
                                             Ferritic                                110-125
                   Malleable Cast Iron
                                             Pearlitic                                80-120
                                             Not Cureable                            135-350
                   Aluminum-Wrought Alloy
                                             Cured                                   100-270
                                             Not Cureable ≤ 12 % Si 90-270            90-270
                   Aluminum-Cast, Alloyed    Cured                                    90-225
              N                              High Temperature > 12 % Si               90-180    ( 0.05 * D ) / 22
                                             Free Cutting > 1 % Pb                    70-225
                   Copper Alloys             Brass                                    70-180
                                             Electrolytic Copper                      70-270
                                             Duroplastics, Fiber Plastics             70-270
                   Non Metalic
                                             Hard Rubber                              70-270
                   High Temperature/Super Alloys (Fe  Annealed                        30-50
                   based)                    Cured
                                             Annealed
              S    High Temperature/Super Alloys (Ni                                            ( 0.038 * D ) / 22
                   or Co based               Cured                                    25-45
                                             Cast
                   Titanium Alloys           Alpha + Beta Alloys Cured                30-40
            D= Toolholder cutting diameter.

              B12-6
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