Table 1. Cutting Speeds and Feeds for Turning Plain Carbon and Alloy Steels
Tool Material Coated Carbide
Uncoated Carbide
Ceramic
HSS
Hard
Tough
Hard
Tough
Hard
Tough
Cermet
Brinell Hardness Number a
f = feed (0.001 in/rev), s = speed (ft/min) Metric Units: f 3 25.4 = mm/rev, s 3 0.3048 = m/min Opt. Avg. Opt. Avg. Opt. Avg. Opt. Avg. Opt. Avg. Opt. Avg. Opt. Avg.
Material AISI/SAE Designation
Speed (fpm)
f s f s f s f s
17 805 17 745 17 730 17 615
8 1075 8 935
36 405 36 345 36 300 36 300
17 555 17 470 17 430 17 405
17 1165 28 915 17 1090
8 1295 13 1130 8 1410
28 850 28 785 28 780 28 755
13 1200 13 1110 13 1105
15 3340 15 1795 15 1610 13 1400
8 4985 8 2680 8 2780 7 1965
15 1670 15 1485 15 1345 13 1170
8 2500 8 2215 8 2005 7 1640
7 1610 7 1490 7 1355
3 2055 3 1815 3 1695
100-150 150 150-200 160 100-150 130 150-200 120
Free-machining plain carbon steels (resulfurized): 1212, 1213, 1215
{
8 990 8 815
1108, 1109, 1115, 1117, 1118, 1120, 1126, 1211 {
17 865
8 960
13 960
175-225 120
275-325 325-375 375-425
75 50 40
1132, 1137, 1139, 1140, 1144, 1146, 1151
{
f s
17 515
8 685
36 235
17 340
17 720
8 805
28 650
13 810
10 1430
5 1745
10 1070
5 1305
100-150 140 150-200 145 200-250 110 100-125 120 125-175 110
f s f s f s f s
17 745 17 615 17 805 17 745 17 615
8 935 8 815
36 345 36 300 36 405 36 345 36 300
17 470 17 405 17 555 17 470 17 405
28 915 17 865
13 1130 8 960 8 1295 13 1130 8 960
28 785 28 755 28 850 28 785 28 755
13 1110 13 960 13 1200 13 1110 13 960
15 1795 13 1400 15 3340 15 1795 13 1400
8 2680 7 1965 8 4985 8 2680 7 1965
15 1485 13 1170 15 1670 15 1485 13 1170
8 2215 7 1640 8 2500 8 2215 7 1640
7 1490
3 1815
(Leaded): 11L17, 11L18, 12L13, 12L14
{
17 1165 28 915 17 865
7 1610 7 1490
3 2055 3 1815
8 1075 8 935 8 815
Plain carbon steels: 1006, 1008, 1009, 1010, 1012, 1015, 1016, 1017, 1018, 1019, 1020, 1021, 1022, 1023, 1024, 1025, 1026, 1513, 1514
175-225 225-275
90 70
f s
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