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GRADES AND MATERIALS
                   4.2  Material Groups



                  According to DIN / ISO 513 and VDI 3323


                                                                       Tensile
                                                                      Strength    K 1          Hardness  Material
                                                                                   c
                                                                                      2
                                                                             2
                  ISO            Material               Condition     [N/mm ] [N/mm ] mc           HB       No.
                                         < 0.25 %C       Annealed        420      1350    0.21    125         1
                                        >= 0.25 %C       Annealed        650      1500    0.22    190         2
                        Non-alloy steel   < 0.55 %C   Quenched and       850      1675    0.24    250         3
                        and cast steel,                  tempered
                       free cutting steel                Annealed        750      1700    0.24    220         4
                                        >= 0.55 %C    Quenched and      1000      1900    0.24     300        5
                                                         tempered
                  P     Low alloy steel and cast steel   Annealed        600      1775    0.24     200        6
                                                                         930
                                                                                  1675
                                                                                                   275
                                                                                          0.24
                                                                                                              7
                      (less than 5% of alloying elements)  Quenched and   1000    1725    0.24     300        8
                                                         tempered
                                                                        1200      1800    0.24     350        9
                                                         Annealed        680      2450    0.23     200       10
                         High alloyed steel, cast steel,    Quenched and
                               and tool steel                           1100      2500    0.23     325       11
                                                         tempered
                                                     Ferritic/martensitic  680    1875    0.21     200       12
                         Stainless steel and cast steel
                                                        Martensitic      820      1875    0.21     240       13
                  M     Stainless steel              Austenitic, duplex  600      2150    0.20    180        14
                                                      Ferritic/pearlitic          1150    0.20    180        15
                             Grey cast iron (GG)
                                                         Pearlitic                1350    0.28    260        16
                                                          Ferritic
                  K        Nodular cast iron (GGG)        Pearlitic               1225    0.25    160        17
                                                                                                  250
                                                                                          0.28
                                                                                  1350
                                                                                                             18
                                                          Ferritic                1225    0.25    130        19
                             Malleable cast iron
                                                          Pearlitic               1420    0.3     230        20
                                                      Not hardenable              700     0.25     60        21
                          Aluminum- wrought alloy
                                                        Hardenable                800     0.25    100        22
                                         <=12% Si     Not hardenable              700     0.25     75        23
                       Aluminum-cast,                   Hardenable                700     0.25     90        24
                           alloyed
                                          >12% Si    High temperature             750     0.25    130        25
                  N                       >1% Pb        Free cutting              700     0.27    110        26
                        Copper alloys                     Brass                   700     0.27     90        27
                                                     Electrolytic copper          700     0.27    100        28
                                                     Duroplastics, fiber
                                Non metallic              plastics                                           29
                                                        Hard rubber                                          30
                                         Fe based        Annealed                 2600    0.24    200        31
                                                         Hardened                 3100    0.24    280        32
                       High temperature                  Annealed                 3300    0.24    250        33
                            alloys
                  S                    Ni or Co based    Hardened                 3300    0.24    350        34
                                                                                  3300
                                                                                          0.24
                                                                                                             35
                                                           Cast
                                                                                                  320
                                                           Pure        RM 400     1700    0.23               36
                               Titanium alloys       Alpha+beta alloys   RM 1050  2110    0.22               37
                                                         hardened
                                                         Hardened                 4600           55 HRC      38
                               Hardened steel
                  H           Chilled cast iron          Hardened                 4700           60 HRC      39
                                                                                                             40
                                                           Cast
                                                                                  4600
                                                                                                  400
                                 Cast iron               Hardened                 4500           55 HRC      41
                    Steel     Stainless Steel     Cast Iron     Nonferrous     High Temp. and Titanium Alloys     Hardened Steel and Cast Iron
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