Page 97 - Carmex - Metric Catalog 2021

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Thread Turning Technical Section

Recommended cutting speed (m/min) for thread turning inserts

ISO
Standard Material Condition HBA BLU BMA P25C MXC BXC K20 P30
<0.25%C Annealed
≥0.25%C Annealed
Non-Alloy Steel Quenched
and Cast Steel, <0.55%C & Tempered 110-210 120-180 100-180 100-180 70-150 50-130
Free Cutting Steel ≥0.55%C Annealed
Quenched
P & Tempered
Low Alloy Steel and Cast Annealed
Steel (less than 5% alloying Quenched 90-140 80-130 70-120 70-120 60-90 50-80
elements) & Tempered
Annealed
High Alloy Steel, Cast Steel, 70-90 60-80 50-60 55-70 50-60 40-50
and Tool Steel Quenched
& Tempered
Ferritic /
M Stainless Steel Martensitic 110-160 90-130 60-90 60-90 50-80 50-80
and Cast Steel
Martensitic
Austenitic
Ferritic /
Cast Iron Nodular (GGG) Pearlitic 120-150 100-130 80-110 60-90
Pearlitic
K Grey Cast Iron (GG) Ferritic 140-150 120-130 90-100 65-85
Pearlitic
Ferritic
Malleable Cast Iron 110-140 100-130 80-100 60-85
Pearlitic
Not
Aluminum-Wrought Alloy Cureable 250-500 200-400 150-400 200-400 100-400
Cured
Not
<=12% Si
Cureable
Aluminum-Cast, Cured 280-500 200-500 150-350 200-500 110-300
Alloyed
High
>12% Si
Temperature
N Free
>1% Pb
Cutting
Copper Alloys Brass 190-350 150-250 110-180 150-250 90-150
Electrolytic
Copper
Duroplastics,
Fiber Plastics
Non Metallic 200-300 150-210 100-200 110-150
Hard
Rubber
Annealed
Fe based
Cured
High Temp. Alloys, Annealed 20-80 30-65 25-60
Super Alloys Ni or Co
S based Cured
Cast
Alpha
Titanium Alloys +Beta Alloys 30-60 40-50 35-45 35-45
Cured
Hardened
45-50 HRc
Hardened
Hardened Steel 51-55 HRc 30-60 40-50 35-45
H Hardened
56-62 HRc
Chilled Cast Iron Cast 20-50 30-40 25-35
Cast Iron Hardened 20-40 20-30 15-25

A04-3