Page 727 - ISCAR(TURNING-CATALOG-42-2022)
P. 727

USER GUIDE
                                                                                                                      THREADING



          Cutting Data





















                                              Steel (N/mm Tensile Strength)    Stainless
                    Carbide Grade                                               Steel   Cast Iron Non-ferrous
                                      400-500  500-700  700-850  850-1150  >1150
                 Cutting     IC228      160     140     120      90      70      90       100       300
                 Speed
                Vc (m/min)   IC908      185     160     140      105     80      105      115       350
                Pitch (p) mm   TPI                                 No. of Passes
                    0.5        48         6       6       7      7         8       8         7         6
                   0.75        32         8       8       9        9     10      10          9         8
                    1.0        24       10      10      12       12      12      12        12        10
                   1.25       20-19     12      12      14       14      15      15        14        12
                    1.5        16       15      15      17       17      18      18        17        15
              For internal threading of small diameters, the PVD coated grade IC228 is recommended.

                                          ISO P           ISO M      ISO K     ISO N     ISO S      ISO H
                                     1-11       12-13      14        15-20     21-28     31-37      38-41
                                                         Stainless
                                                          Steel
                                               Stainless   Austenitic
                                                Steel    & Duplex                         High
                                               Ferritic &   (Ferritic-          Non-   Temperature  Hard Steel
                  Material groups    Steel    Martensitic  Austenitic)  Cast Iron  ferrous  Alloys  & Cast Iron
                           Harder   IC1007      IC1007    IC1007    IC1007      IC08     IC806     IC1007
                                  IC808 (IC908)                   IC808 (IC908)          IC1007
                                                IC808     IC808
                                  IC250 (IC950)  (IC908)  (IC908)  IC250 (IC950)  IC228  IC808 (IC908) IC808 (IC908)
               THREADING  Tougher    IC228      IC228     IC228      IC228      IC28
                 First choice


























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