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WORKPIECE GROUP

                ● 피삭재 그룹표 Workpiece Group

                ISO                피삭재                  피삭재 조건                            인장강도(N/㎟) 경도(HB/HRC) 피삭재 그룹 절삭동력(N/㎟)
                              Material Group           Composition                        Tensile Strength Hardness Cutting Groups Kc값(Values)

                                     일반강               <0.25% C       annealed               420   125   1 2000
                               (Unalloyed steel)       >=0.25% C      annealed               650   190  2 2100
                               주강(cast seel)           <0.55% C       tempered               850   250  3 2150
                                                       >=0.55% C      annealed               750   220  4 2200
                                  기계구조강                               tempered              1000   300  5 2200
                P             (machining steel)                       annealed               600   200  6 2100
                                                                                             930   275  7 2100
                 강            경합금강,주강(<5%)                            tempered              1000   300  8 2100
                              (Low-alloy steel)                                             1200   350  9 2100
                Steel                                                                        680   200  10 2500
                                                                                            1100   325  11 3250
                               고합금강, 공구강                                annealed             680   200  12 2300
                              (High-alloy steel)                        tempered             820   240  13 2800
                                                                      martensitic/ferrit     600   180  14 2600
                   M          Stainless steel                          martensitic                 180  15 1100
                               스테인레스강                                   austenitic        RM 400   260  16 1300
                스테인레스강                                                pearlitic/ferrit    RM 1050  160  17 1100
                 Stainless                                                pearlitic                250  18 1800
                    steel                                                                          130  19 900
                                                                          ferritisc                230  20 1000
                  K                 회주철                                   pearlitic                60   21 500
                              Grey cast iron                              ferritisc                100  22 800
                   주철                                                     pearlitic                 75  23 800
                Cast iron       구상흑연주철                                                             90   24
                              Cast iron with                                                       130  25
                              nodular cast iron                                                    110  26 700
                                                                                                   90   27 700
                                   가단주철                                                            100  28 1700
                              Malleable cast iron                                                  200  31 3000
                                                                                                   280  32 3100
TECHNICAL DATA                알루미늄 단조강                                not heat treatable           250  33 3300
                              Aluminum Forging alloys                 heat treatable               350  34 3300
                                                                                                   320  35 3200
                  N           알루미늄 주물강                 <=12% Si       not heat treatable                36 1700
                              Aluminum Cast                           heat treatable                    37 1700
                  비철금속                                 >12% Si        not heat treatable
                Nonferrous          alloys              >1% Pb        machining alloys
                                 구리 합금강                               CuZn, CuSnZn
                  metals       Copper and                              Cu, lead-fr
                              copper alloys

                                                       Fe-based annealed

                S 고온 합금                                               heat treatable

                              Heat-resistant CoN-i-boadse. d annealed
                                           alloy
                티타늄 합금강                                               heat treatable

                Super-alloys                                          cast
                and titanium
                                                       Pure titanium
                                           티탄 합금

                              Titanium alloys α-β alloys

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