Page 77 - TURNING CATALOG p635-848

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THREADING
Machining Data for Threading

Tensile Material Coated
Strength Group
(N/mm2) Hardness IC228 IC908 IC808 IC1007
HB No.
Material Condition 420 125 1 60-100 Cutting Speed (m/min) 135-230
Annealed 650 190 2 60-95 130-220
< 0.25 %C Annealed 115-190 125-205
Quenched and 50-90 120-210
Non-alloy >= 0.25 %C tempered 110-180 120-195
steel and cast < 0.55 %C Annealed 45-85 110-200
steel, free Quenched and 850 250 3 100-175 105-185
cutting steel >= 0.55 %C tempered 45-85 110-200
Annealed 750 220 4 90-165 95-175
50-95 120-215
Quenched and 1000 300 5 40-75 90-165 95-175 90-170
tempered 35-70 85-160
P Low alloy and cast steel (less 600 200 6 35-70 100-180 105-195 85-160
than 5% of alloying elements) Annealed 930 275 7 40-65 75-140 80-150 95-145
Quenched and 1000 300 8 70-135 75-145
High alloyed steel, cast 1200 350 9 25-50 70-135 75-145 60-120
steel, and tool steel tempered 680 200 10 80-120 85-130
Ferritic/martensitic 35-70 85-155
Stainless steel and cast steel 1100 325 11 45-60 50-100 55-105 100-130
Martensitic 45-75 110-170
680 200 12 65-85 70-130 75-140 150-190
820 240 13 45-65 85-110 90-120 110-145
35-70 85-155
M Stainless steel and cast steel Austenitic, duplex 600 180 14 30-60 90-140 95-150 70-140
30-35 70-85
Gray cast iron (GG) Ferritic/pearlitic 180 15 30-75 125-160 135-170 70-175
Pearlitic /martensitic 260 16 50-195 90-120 95-130 120-440
K Nodular cast iron (GGG) 160 17 40-115 70-130 75-140 95-265
Ferritic 250 18 105-215 60-115 65-125 240-480
Malleable cast iron Pearlitic 130 19 105-150 60-70 65-75 240-335
Ferritic 230 20 105-150 60-145 65-155 240-335
Aluminum-wrought alloys Pearlitic 60 21 40-135 100-365 105-390 95-305
Not hardenable 100 22 40-135 80-220 85-235 95-305
Aluminum- <=12% Si Hardenable 75 23 40-130 200-400 215-430 95-305
cast alloys Not hardenable 90 24 200-280 215-300
>12% Si Hardenable 130 25 40-130 200-280 215-300 95-300
N >1% Pb High temperature 110 26 80-255 85-275
Copper alloys Free cutting 90 27 40-130 80-255 85-275 95-300
Brass 100 28 25-30 80-255 85-275 55-70
Electrolytic copper 15-25 40-60
Non metallic Duroplastics, 200 29 10-15 80-250 85-265 25-35
fiber plastics 280 5-10 18-30
High Fe based Hard rubber 250 30 5-10 80-250 85-265 18-30
temperature Annealed 350 31 75-90 45-60 50-65 170-205
S alloys Ni or Co Hardened 320 32 35-50 35-55
based Annealed 33 25-35 20-30 20-30 60-85
Hardened 55 HRC 34 15-25 15-25
400 60 HRC 35 25-30 15-25 15-25 55-70
Cast 1050 36 25-30 140-170 150-180 55-70
Pure 400 25-30 55-70
Titanium alloys Alpha+beta alloys 55 HRC 37 25-30 50-70 55-75 55-70
hardened
Hardened steel Hardened 38 45-60 50-65
H Chilled cast iron Hardened 39 45-60 50-65
Cast 40 45-60 50-65
Cast iron Hardened 41 45-60 50-65

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