A Turning insert, negative

BillgroupStartingHC (CVD values for cutting) speedvc[m/min]
Material groupComposition / structure / heat treatmentrne hardnessingYB6315YBC152YBC252
HBachinFeed rate [mm]Feed rate [mm]Feed rate [mm]
M0,10,20,60,1 0,20,60,10,40,8
approx. 0,15 % C annealed1251500400270500 400270480370230
approx. 0,45 % C annealed1902420340230420 340230400310190
Unalloyed steelapprox. 0,45 % C tempered2503330280200330 280200310250160
approx. 0,75 % C annealed2704320270190320 270190300240150
approx. 0,75 % C tempered3005280240170280 240170260210130
Pannealed1806400300180400 300180380290170
Low-alloed steeltempered2757280230150280 230150260210140
ytempered3008260220150260 220150240200140
tempered3509230190120230 190120220180110
High-alloyed steel and high-alloyedannealed20010360290190360 290190310250170
tool steelhardened and tempere325 d11190160130190 160130150130100
ferritic/martensitic annealed20012
martensitic temered24013
M Stainless steelp
austenitic quench hardened18014
austenitic-ferritic23015
Grey cast ironperlitic/ferritic18016
perlitic (martensitic)26017
K Cast iron with spheroidal graphiteferritic16018
perlitic25019
ferritic13020
Malleable cast iron
perlitic23021
Aluminium wrought alloyscannot be hardened6022
hardenable hardened10023
≤ 12 % Si, cannot be hardened7524
Cast aluminium alloys≤ 12 % Si, hardenable hardened9025
N> 12 % Si, cannot be hardened13026
machining steel, PB> 1%11027
Copper and copper alloys (bronze/brass)CuZn, CuSnZn9028
CuSn, Pb-free copper, electrolytic copper10029
annealed20030
Fe-based alloys hardened28031
Heat-resistant alloysannealed25032
SNi or Co bass hardened35033
cast32034
Titi llpure titaniumRm40035
anum aoysα and β alloys hardenedRm105036
Hdd tlhardened and tempere55 HRC d37
arene seehardened and tempere60 HRC d38
H Hard cast ironcast40039
Hardened cast ironhardened and tempere55 HRC d40
Thermoplasts41
Thermosetting plastics42
X Non-metallic materialsPlastic, glass-fibre reinforced GFRP43
Plastic, carbon fibre reinforced CFRP44
Graphite Wood45 46

Note: The given cutting values are guide values, which were determined under ideal conditions. The values have to be adapted in individual cases. For examples of material for cutting tool groups view page D22.