TMPG_US-EN
Speeds and Feeds | Metric
Hardness (BHN) 140 - 220 220 - 310 135 - 185
Speed (M/min)
Material
ISO
Machinability*
Difficult Difficult Difficult
30 23
S High Temp Alloy
Hastelloy B, Inconel 600
Stainless Steel 303, 416, 420 Stainless Steel PH
130 122
185 - 275 Difficult 185 - 275 Difficult 275 - 325 Difficult
76 38 99 69
M
17-4
Tool Steel
150 - 200 200 - 250 120 - 150 150 - 200 200 - 220 220 - 260 260 - 320
Difficult Difficult
H-13, H21, A-4
Cast Iron
Easy Easy Easy
168 152 137 122 114 305 274 152
Grey, Ductile, Nodular
K
Average Average
Wrought Aluminum
30
Easy Easy Easy Easy
6061 T6
180 120
N
Cast Aluminum ** up to 10% silicon
Brass 305 NOTE: Feed rates provided are safe starting recommendations and may be increased to reduce cycle times. Solid carbide thread mills may perform at double or triple these feed recommendations. 30 - 125
40 | THREAD MILLING REFERENCE GUIDE
Made with FlippingBook - Online catalogs