Page 91 - Turning_catalog_INCH_2022_45_P691-914

USER GUIDE

Machining Data for Threading
Coated
Tensile Material IC228 IC908 IC808 IC1007 THREADING
Strength Hardness Group
ISO Material Condition [ksi] HB No. Cutting Speed (SFM)
<0.25% C Annealed 61 125 1 200 - 330 380 - 620 410 - 670 440 - 750
≥0.25% C Annealed 94 190 2 200 - 310 360 - 590 390 - 640 430 - 720
Non-alloy steel <0.55% C Quenched and 123 250 3 160 - 300 330 - 570 340 - 610 390 - 690
and cast steel, tempered
free cutting steel Annealed 109 220 4 150 - 280 300 - 540 310 - 570 360 - 660
≥0.55% C Quenched and
tempered 145 300 5 150 - 280 300 - 540 310 - 570 360 - 660
Annealed 87 200 6 160 - 310 330 - 590 340 - 640 390 - 710
P
Low alloy and cast steel (less 135 275 7 130 - 250 250 - 460 260 - 490 300 - 560
than 5% of alloying elements) Quenched and 145 300 8 110 - 230 230 - 440 250 - 480 280 - 520
tempered
174 350 9 110 - 230 230 - 440 250 - 480 280 - 520
Annealed 99 200 10 130 - 210 260 - 390 280 - 430 310 - 480
High alloyed steel, cast
steel and tool steel Quenched and 160 325 11 80 - 160 160 - 330 180 - 340 200 - 390
tempered
Ferritic/martensitic 99 200 12 110 - 230 230 - 430 250 - 460 280 - 510
Stainless steel and cast steel
Martensitic 119 240 13 150 - 200 280 - 360 300 - 390 330 - 430
M Stainless steel and cast steel Austenitic, duplex 87 180 14 150 - 250 300 - 460 310 - 490 360 - 560
Ferritic / pearlitic 180 15 210 - 280 410 - 520 440 - 560 490 - 620
Gray cast iron (GG)
Pearlitic / martensitic 260 16 150 - 210 300 - 390 310 - 430 360 - 480
Ferritic 160 17 110 - 230 230 - 430 250 - 460 280 - 510
K Nodular cast iron (GGG)
Pearlitic 250 18 100 - 200 200 - 380 210 - 410 230 - 460
Ferritic 130 19 100 - 110 200 - 230 210 - 250 230 - 280
Malleable cast iron
Pearlitic 230 20 100 - 250 200 - 480 210 - 510 230 - 570
Not hardenable 60 21 160 - 640 330 - 1200 340 - 1280 390 - 1440
Aluminum-wrought alloys
Hardenable 100 22 130 - 380 260 - 720 280 - 770 310 - 870
Not hardenable 75 23 340 - 710 660 - 1310 710 - 1410 790 - 1570
Aluminum- ≤12% Si Hardenable 90 24 340 - 490 660 - 920 710 - 980 790 - 1100
cast alloys
>12% Si High temperature 130 25 340 - 490 660 - 920 710 - 980 790 - 1100
N >1% Pb Free cutting 110 26 130 - 440 260 - 840 280 - 900 310 - 1000
Copper alloys Brass 90 27 130 - 440 260 - 840 280 - 900 310 - 1000
Electrolytic copper 100 28 130 - 440 260 - 840 280 - 900 310 - 1000
Duroplastics, 29 130 - 430 260 - 820 280 - 870 310 - 980
Non metallic fiber plastics
Hard rubber 30 130 - 430 260 - 820 280 - 870 310 - 980
Annealed 200 31 80 - 100 150 - 200 160 - 210 180 - 230
Fe based
Hardened 280 32 50 - 80 110 - 160 110 - 180 130 - 200
High temperature Annealed 250 33 30 - 50 70 - 100 70 - 100 80 - 110
alloys Ni or Co Hardened 350 34 20 - 30 50 - 80 50 - 80 60 - 100
S based
Cast 320 35 20 - 30 50 - 80 50 - 80 60 - 100
Pure 58 190 36 250 - 300 460 - 560 490 - 590 560 - 670
Titanium alloys Alpha+Beta alloys, 152 310 37 80 - 110 160 - 230 180 - 250 200 - 280
hardened
Hardened 55 HRC 38 80 - 100 150 - 200 160 - 210 180 - 230
Hardened steel
H Hardened 60 HRC 39 80 - 100 150 - 200 160 - 210 180 - 230
Chilled cast iron Cast 400 40 80 - 100 150 - 200 160 - 210 180 - 230
Cast iron Hardened 55 HRC 41 80 - 100 150 - 200 160 - 210 180 - 230

781