P2 P P3 P4 M1 M2 M M3 M4 K1 K2 K K3 K4 K5 N1 N2 N N3 N4 S1 S S2 S3 S4 H1 H2 H H3 H4 P1.1 P1.2 P1.3 P2.1 P2.2 P2.3 P3.1 P3.2 P3.3 P4.1 P4.2 P4.3 M1.1 M1.2 M2.1 M2.2 M2.3 M3.1 M3.2 M3.3 M4.1 M4.2 K1.1 K1.2 K1.3 K2.1 K2.2 K2.3 K3.1 K3.2 K3.3 K4.1 K4.2 K4.3 K4.4 K4.5 K5.1 K5.2 K5.3 N1.1 N1.2 N1.3 N2.1 N2.2 N2.3 N3.1 N3.2 N3.3 N4.1 N4.2 N4.3 S1.1 S1.2 S1.3 S2.1 S2.2 S3.1 S3.2 S4.1 S4.2 H1.1 H2.1 H2.2 H3.1 H3.2 H4.1 H4.2 Free machining sulfurized carbon steel with a hardness of < 220 HB Free machining sulfurized and phosphorized carbon steel with a hardness of < 180 HB Free machining sulfurized/phosphorized and leaded carbon steel with a hardness of < 160 HB Plain low carbon steel containing < 0.25%C with a hardness of < 180 HB Plain medium carbon steel containing < 0.55%C with a hardness of < 240 HB Plain high carbon steel containing > 0.55%C, with a hardness of < 300 HB Alloy steel with a hardness of < 180 HB Alloy steel with a hardness of 180 – 260 HB Alloy steel with a hardness of 260 – 360 HB Tool steel with a hardness of < 26 HRC Tool steel with a hardness of 26 – 39 RC Tool steel with a hardness of 39 – 45 HRC Stainless steel, ferritic with a hardness of < 160 HB Stainless steel, ferritic with a hardness of 160 – 220 HB Stainless steel, martensitic with a hardness of < 200 HB Stainless steel, martensitic with a hardness of 200 – 280 HB Stainless steel, martensitic with a hardness of 280 – 380 HB Stainless steel, austenitic with a hardness of < 200 HB Stainless steel, austenitic with a hardness of 200 – 260 HB Stainless steel, austenitic with a hardness of 260 – 300 HB Stainless steel, austenitic-ferritic or super-austenitic with a hardness of < 300 HB Stainless steel, precipitation hardening austenitic with a hardness of 300 – 380 HB Gray iron, ferritic or ferritic-pearlitic with a hardness of < 180 HB Gray iron, ferritic-pearlitic or pearlitic with a hardness of 180 – 240 HB Gray iron, pearlitic with a hardness of 240 – 280 HB Malleable iron, ferritic with a hardness of < 160 HB Malleable iron, ferritic or pearlitic with a hardness of 160 – 200 HB Malleable iron, pearlitic with a hardness of 200 – 240 HB Ductile (nodular/spheriodal) iron, ferritic with a hardness of < 180 HB Ductile (nodular/spheriodal) iron, ferritic or pearlitic with a hardness of 180 – 220 HB Ductile (nodular/spheriodal) iron, pearlitic with a hardness of 220 – 260 HB Austenitic cast iron with a hardness of < 180 HB Austenitic cast iron with a hardness of 180 – 240HB Austempered ductile iron with a hardness of 240 – 280 HB Austempered ductile iron with a hardness of 280 – 320 HB Austempered ductile iron with a hardness of 320 – 360 HB Vermicular, compacted graphite iron with a hardness of < 180 HB Vermicular, compacted graphite iron with a hardness of 180 – 220 HB Vermicular, compacted graphite iron with a hardness of 220 – 260 HB Pure aluminium and wrought aluminium alloys with a hardness of < 60 HB Wrought aluminium alloys with a hardness of 60 – 100 HB Wrought aluminium alloys with a hardness of 100 – 150 HB Cast aluminium alloys with a hardness of < 75 HB Cast aluminium alloys with a hardness of 75 – 90 HB Cast aluminium alloys with a hardness of 90 < 140 HB Free-cutting copper-alloys materials with excellent machining properties Short-chip copper-alloys with good to moderate machining properties Electrolytic copper and long-chip copper-alloys with moderate to poor machining properties Thermoplastic polymers Thermosetting polymers Reinforced polymers or composites Titanium or titanium alloys, with a hardness of < 200 HB Titanium alloys, with a hardness of 200 – 280 HB Titanium alloys, a hardness of 280 – 360 HB High-temperature Fe-based alloys with a hardness of < 200 HB High-temperature Fe-based alloys with a hardness of 200 – 280 HB High-temperature Ni-based alloys with a hardness of < 280 HB High-temperature Ni-based alloys with a hardness of 280 – 360 HB High-temperature Co-based alloys with a hardness of < 240HB High-temperature Co-based alloys with a hardness of 240 – 320 HB Chilled cast iron with a hardness of < 400 HB Hardened cast iron with a hardness < 55 HRC Hardened cast iron with a hardness > 55 HRC Hardened steel with a hardness of < 51 HRC Hardened steel with a hardness of 51 – 55 HRC Hardened steel with a hardness of 55 – 59 HRC Hardened steel with a hardness of > 59 HRC Old Pramet ISO P1 WMG (Workpiece Material Groups) Old Dormer AMG ISO Ultimate tensile strength Mpa [N/mm²] ≤ 760 ≤ 620 ≤ 550 ≤ 620 ≤ 830 ≤ 1030 ≤ 620 > 620 ≤ 900 > 900 ≤ 1240 ≤ 900 > 900 ≤ 1240 > 1250 ≤ 1450 ≤ 520 > 520 ≤ 700 ≤ 670 > 670 ≤ 950 > 950 ≤ 1300 ≤ 750 >750 ≤ 870 > 870 ≤ 1040 ≤ 990 ≤ 1320 ≤ 190 > 190 ≤ 310 >310 ≤ 390 ≤ 400 > 400 ≤ 550 > 550 ≤ 660 ≤ 560 > 560 ≤ 680 > 680 ≤ 800 ≤ 610 > 610 ≤ 840 > 840 ≤ 980 > 980 ≤ 1130 > 1130 ≤ 1280 1.1 1.1 1.1 1.2 1.3 1.5 1.4 1.4 1.5 1.4 1.5 1.6 2.1 2.1 2.3 2.3 2.4 2.2 2.2 2.2 2.3 2.4 3.1 3.2 3.2 3.3 3.3 3.4 3.3 3.3 3.4 P1 P1 P1 P2 P2 P3 P3 P3 P4 P3 P4 H1 M1 M1 M2 M2 M2 M3 M3 M3 M4 M4 K1 K1 K1 K2 K2 K2 K3 K4 K4 ≤ 240 > 240 ≤ 400 > 400 ≤ 590 ≤ 240 > 240 ≤ 270 > 270 ≤ 440 7.1 7.1 7.2 7.3 7.3 7.3 6.3 6.2 6.1 8.1 8.2 8.3 4.1 4.2 4.3 N1 N1 N2 N1 N1 N2 N3 N3 N4 ≤ 660 > 660 ≤ 950 > 950 ≤ 1200 ≤ 690 > 690 ≤ 970 ≤ 940 > 940 ≤ 1200 ≤ 800 > 800 ≤ 1070 5.2 5.3 1.7 1.7 1.8 1.8 S1 S1 S1 S2 S2 S3 S3 S4 S4 H2 H2 H3 H3 H4 H4 9