Posted: September 13th, 2017

Cutting Speeds for Turning, Milling, Drilling, and Reaming carbon steels

Recommended Cutting Speeds in Feet per Minute for Turning, Milling, Drilling, and Reaming Plain Carbon and Alloy Steels

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Material
AISI and SAE Steels Hardness
HBa Material
Condition Cutting Speed, sfpm HSS
Turning Milling Drilling Reaming
Free Machining Plain Carbon Steels (Resulferized)
1212, 1213, 1215 100-150
150-200 HR, A
CD 150
160 140
130 120
125 80
80
1108, 1109, 1115, 1117, 1118, 11220,
1126, 1211 100-150
150-200 HR, A
CD 130
120 130
115 110
120 75
80
1132, 1137, 1139, 1140, 1144, 1146,
1151 175-225
275-325
325-375
375-425 HR, A, N, CD
Q and T
Q and T
Q and T 120
75
50
40 115
70
45
35 100
70
45
35 65
45
30
20
Free Machining Plain Carbon Steels (Leaded)
11L17, 11L18, 12L13, 12L14 100-150
150-200
200-250 HR, A, N, CD
HR, A, N, CD
N, CD 140
145
110 140
130
110 130
120
90 85
80
60
Plain Carbon Steels
1006, 1008, 1009, 1010, 1012, 1015,
1016, 1017, 1018, 1019, 1020, 1021,
1022, 1023, 1024, 1025, 1026, 1513,
1514 100-125
125-175
175-225
225-275 HR, A, N, CD
HR, A, N, CD
HR, N, CD
CD 120
110
90
70 110
110
90
65 100
90
70
60 65
60
45
40
1027, 1030, 1033, 1035, 1036, 1037,
1038, 1039, 1040, 1041, 1042, 1043,
1045, 1046, 1048, 1049, 1050, 1052,
1152, 1524, 1526, 1527, 1541 125-175
175-225
225-275
275-325
325-375
375-425 HR, A, N, CD
HR, A, N, CD
N, CD, Q and T
Q and T
Q and T
Q and T 100
85
70
60
40
30 100
85
70
55
35
25 90
75
60
50
35
25 60
50
40
30
20
15
1055, 1060, 1064, 1065, 1070, 1074,
1078, 1080, 1084, 1086, 1090, 1095,
1548, 1551, 1552, 1561, 1566 125-175
175-225
225-275
275-325
325-375
375-425 HR, A, N, CD
HR, A, N, CD
N, CD, Q and T
Q and T
Q and T
Q and T 100
80
65
50
35
30 90
75
60
45
30
15 85
70
50
40
30
15 55
45
30
25
20
10
Free Machining Alloy Steels (Resulferized)
4140, 4150 175-200
200-250
250-300
300-375
375-425 HR, A, N, CD
HR, N, CD
Q and T
Q and T
Q and T 110
90
65
50
40 100
90
60
45
35 90
80
55
40
30 60
50
30
25
15
Free Machining Alloy Steels (Leaded)
41L30, 41L40, 41L47, 41L50
43L47, 51L32, 52L100, 86L20,
86L40 150-200
200-250
250-300
300-375
375-425 HR, A, N, CD
HR, N, CD
Q and T
Q and T
Q and T 120
100
75
55
50 115
95
70
50
40 100
90
65
45
30 65
60
40
30
15
Alloy Steels
4012, 4023, 4024, 4028, 4118, 4320,
4419, 4422, 4427, 4615, 4620, 4621,
4626, 4718, 4720, 4815, 4817, 4820,
5015, 5117, 5120, 6118, 8115, 8615,
8617, 8620, 8622, 8625, 8627, 8720,
8822, 94B17 125-175
175-225
225-275
275-325
325-375
375-425 HR, A, N, CD
HR, A, N, CD
CD, N, Q and T
Q and T
Q and T
Q and T 100
90
70
60
50
35 100
90
60
50
40
25 85
70
55
50
35
25 55
45
35
30
25
15
1330, 1335, 1340, 1345, 4032, 4037,
4042, 4047, 4130, 4135, 4137, 4140,
4142, 4145, 4147, 4150, 4161, 4337,
4340, 50B44, 50B46, 50B50,
50B60, 5130, 5132, 5140, 5145,
5147, 5150, 5160, 51B60, 6150,
81B45, 8630, 8635, 8637, 8640,
8642, 8645, 8650, 8655, 8660,
8740, 9254, 9255, 9260, 9262, 94B30 175-225
225-275
275-325
325-375
375-425 HR, A, N, CD
N, CD, Q and T
N, Q and T
N, Q and T
Q and T 85
70
60
40
30 75
60
50
35
20 75
60
45
30
20 50
40
30
15
15
E51100, E52100 175-225
225-275
275-325
325-375
375-425 HR, A, CD
N, CD, Q and T
N, Q and T
N, Q and T
Q and T 70
65
50
30
20 65
60
40
30
20 60
50
35
30
20 40
30
25
20
10
Ultra High Strength Steels (Not AISI)
AMS 6421 (98B37 Mod.), AMS 6422
(98BV40), AMS 6424, AMS 6427,
AMS 6428, AMS 6430, AMS 6432,
AMS 6433, AMS 6434, AMS 6436,
AMS 6442, 300M, D6ac 220-300
300-350
350-400
43-48 HRC
48-52 HRC A
N
N
Q and T
Q and T 65
50
35
25
10 60
45
20
–
– 50
35
20
–
– 30
20
10
–
–
Maraging Steels (Not AISI)
18% Ni Grade 200,
18% Ni Grade 250,
18% Ni Grade 300,
18% Ni Grade 350 250-325
50-52 HRC A
Maraged 60
10 50
– 50
– 50
–
Nitriding Steels (Not AISI)
Nitralloy 125, Nitralloy 135,
Nitralloy 135 Mod., Nitralloy 225,
Nitralloy 230, Nitralloy N,
Nitralloy EZ, Nitrex I 200-250
300-350 A
N, Q and T 70
30 60
25 60
35 40
20
a Abbreviations designate: HR, hot rolled; CD, cold drawn; A, annealed; N, normalized; Q and T, quenched and tempered; and HB Brinell hardness number.
Speeds for turning based on a feed rate of 0.012 inch per revolution and a depth of cut of 0.125 inch.
Recommended Cutting Speeds in Feet per Minute for Turning, Milling, Drilling, and Reaming Ferrous Cast Metals
Material Hardness
HBa Material
Condition Cutting Speed, sfpm HSS
Turning Milling Drilling Reaming
Gray Cast Iron
ASTM Class 20
ASTM Class 25
ASTM Class 30, 35 and 40
ASTM Class 45 and 50
ASTM Class 55 and 60
ASTM Type 1, 1b, 5 (Ni Resist)
ASTM Type 2, 3, 6 (Ni Resist)
ASTM Type 2b, 4 (Ni Resist) 120-150
160-200
190-220
220-260
250-320
100-215
120-175
150-250 A
AC
AC
AC
AS, HT
AC
AC
AC 120
90
80
60
35
70
65
50 100
80
70
50
30
50
40
30 100
90
80
60
30
50
40
30 65
60
55
40
20
30
25
20
Malleable Iron
(Ferritic), 32510, 35018 110-160 MHT 130 110 110 75
(Pearlitic), 40010, 43010, 45006,
45008, 48005, 50005 160-200
200-240 MHT
MHT 95
75 80
65 80
70 55
45
(Martensitic), 53004, 60003, 60004
(Martensitic), 70002, 70003
(Martensitic), 80002
(Martensitic), 90001 200-255
220-260
240-280
250-320 MHT
MHT
MHT
MHT 70
60
50
30 55
50
45
25 55
50
45
25 35
30
30
15
Nodular (Ductile) Iron
(Ferritic), 60-40-18, 65-45-12 140-190 A 100 75 100 65
(Ferritic-Pearlitic), 80-55-06 190-225
225-260 AC
AC 80
65 60
50 70
50 45
30
(Pearlitic-Martensitic), 100-70-03 240-300 HT 45 40 40 25
(Martensitic), 120-90-02 270-330
330-400 HT
HT 30
15 25
– 25
10 15
5
Cast Steels
(Low Carbon), 1010, 1020 100-150 AC, A, N 110 100 100 65
(Medium Carbon), 1030, 1040,
1050 125-175
175-225
225-300 AC, A, N
AC, A, N
AC, HT 100
90
70 95
80
60 90
70
55 60
45
35
(Low Carbon Alloy), 1320, 2315,
2320, 4110, 4120, 4320, 8020,
8620 150-200
200-250
250-300 AC, A, N
AC, A, N
AC, HT 90
80
60 85
75
50 75
65
50 50
40
30
(Medium Carbon Alloy), 1330,
1340, 2325, 2330, 4125, 4130,
4140, 4330, 4340, 8030, 80B30,
8040, 8430, 8440, 8630, 8640,
9525, 9530, 9535 175-225
225-250
250-300
300-350
350-400 AC, A, N
AC, A, N
AC, HT
AC, HT
HT 80
70
55
45
30 70
65
50
30
– 70
60
45
30
20 45
35
30
20
10
a Abbreviations designate: A, annealed; AC, as cast; N, normalized; HT, heat treated; MHT, malleabilizing heat treatment; and HB Brinell hardness number.
Speeds for turning based on a feed rate of 0.012 inch per revolution and a depth of cut of 0.125 inch.
Recommended Cutting Speeds in Feet per Minute for Turning, Milling, Drilling, and Reaming Stainless Steels
Material Hardness
HBa Material
Condition Cutting Speed, sfpm HSS
Turning Milling Drilling Reaming
Free Machining Stainless Steels (Ferritic)
430F, 430F Se 135-185 A 110 95 90 60
(Austenitic), 203EZ, 303,
303Se, 303MA, 303Pb,
303Cu, 303 Plus X 135-185
225-275 A
CD 100
80 90
75 85
70 55
45
(Martensitic), 416, 416Se,
416Plus X, 420F, 420FSe
440F, 440FSe 135-185
185-240
275-325
375-425 A
A, CD
Q and T
Q and T 110
100
60
30 95
80
50
20 90
70
40
20 60
45
25
10
Stainless Steels
(Ferritic), 405, 409, 429, 430,
434, 436, 442, 446, 502 135-185 A 90 75 65 45
(Austenitic), 201, 202, 301
302, 304, 304L, 305, 308, 321
347, 348 135-185
225-275 A
CD 75
65 60
50 55
50 35
30
(Austenitic), 302B, 309, 309S
310, 310S, 314, 316, 316L,
317, 330 135-185 A 70 50 50 30
(Martensitic), 403, 410, 420,
501 135-175
175-225
275-325
375-425 A
A
Q and T
Q and T 95
85
55
35 75
65
40
25 75
65
40
25 50
45
25
15
(Martensitic), 414, 431, Greek
Ascoloy 225-275
275-325
375-425 A
Q and T
Q and T 60
50
30 55
45
25 50
40
25 30
25
15
(Precipitation Hardening), 15-
5PH, 17-4PH, 17-7PH, AF-71,
17-14CuMo, AFC-77,
AM-350, AM-355, AM-362,
Custom 455, HMN, PH13-8,
PH14-8Mo, PH15-7Mo,
Stainless W 150-200
275-325
325-375
375-450 A
H
H
H 60
50
40
25 60
50
40
25 50
45
35
20 30
25
20
10
a Abbreviations designate: A, annealed; CD, cold drawn; N, normalized; H, percipitation hardened; Q and T, quenched and tempered; and HB Brinell hardness number.
Speeds for turning based on a feed rate of 0.012 inch per revolution and a depth of cut of 0.125 inch.
Recommended Cutting Speeds in Feet per Minute for Turning, Milling, Drilling, and Reaming Tools Steels
Material
Tool Steels (AISI Types) Hardness
HBa Material
Condition Cutting Speed, sfpm HSS
Turning Milling Drilling Reaming
Water Hardening W1, W2, W5
Shock Resisting S1, S2, S5, S6, S7
Cold Work, Oil Hardening O1, O2, O6, O7
Cold Work, High Carbon High Chromium
D2, D3, D4, D5, D7
Cold Work, Air Hardening A2, A3, A8, A9, A10
A4, A6
A7 150-200
175-225
175-225
200-250
200-250
200-250
225-275 A
A
A
A
A
A
A 100
70
70
45
70
55
45 85
55
50
40
50
45
40 85
50
45
30
50
45
30 55
35
30
20
35
30
20
Hot Work, Chromium Type
H10, H11, H12, H13, H14, H19 150-200
200-250
325-375
48-50 HRC
50-52 HRC
52-54 HRC
54-56 HRC A
A
Q and T
Q and T
Q and T
Q and T
Q and T 80
65
50
20
10
–
– 60
50
30
–
–
–
– 60
50
30
–
–
–
– 40
30
20
–
–
–
–
Hot Work, Tungsten Type
H21, H22, H23, H24, H25, H26 150-200
200-250 A
A 60
50 55
45 55
40 35
25
Hot Work, Molybdenum Type
H41, H42, H43 135-185
225-275 A
A 55
45 55
45 45
35 30
20
Special Purpose, Low Alloy L2, L3, L6
Mold P2, P3, P4, P5, P6
P20, P21
High Speed Steel M1, M2, M6, M10, T1, T2, T6
M3-1, M4, M7, M30, M33, M34, M36, M41,
M42, M43, M44, M46, M47, T5, T8
T15, M3-2 150-200
100-150
150-200
200-250
225-275
225-275 A
A
A
A
A
A 75
90
80
65
55
45 65
75
60
50
40
30 60
75
60
45
35
25 40
50
40
30
20
15
a Abbreviations designate: A, annealed; Q and T, quenched and tempered; and HB Brinell hardness number and HRC, Rockwell C scale hardness number.
Speeds for turning based on a feed rate of 0.012 inch per revolution and a depth of cut of 0.125 inch.
Recommended Cutting Speeds in Feet per Minute for Turning, Milling, Drilling, and Reaming Light Metals
Material
Light Metals Material
Condition Cutting Speed, sfpm HSS
Turning Milling Drilling Reaming
All Wrought Aluminum Alloys CD
ST and A 600
500 600
500 400
350 400
350
All Aluminum Sand and Permanent
Mold Casting Alloys AC
ST and A 750
600 750
600 500
350 500
350
All Aluminum Die Casting Alloys AC
ST and A 125
100 125
100 300
70 300
70
except Alloys 390.0 and 392.0 AC
ST and A 80
60 80
60 125
45 100
40
All Wrought Magnesium Alloys A, CD, ST and A 800 800 500 500
All Cast Magnesium Alloys A, AC, ST and A 800 800 450 450
a Abbreviations designate: A, annealed; AC, as cast; CD, cold drawn; ST and A, solution treated as aged.
Recommended Cutting Speeds in Feet per Minute for Turning and Drilling Titanium and Titanium Alloys
Material
Titanium and Titanium Alloys Material
Conditiona Hardness
HBa Cutting
Speed, sfpm
HSS
Commercially Pure
99.5 Ti
99.1 Ti, 99.2 Ti
99.0 A
A
A 110-150
180-240
250-275 110
90
70
Low Alloyed
99.5 Ti – 0.15 Pd
99.2 Ti – 0.15 Pd, 98.9 Ti – 0.8 Ni – 0.3 Mo A
A 110-150
180-250 100
85
Alpha Alloys and Alpha-Beta Alloys
5A1-2.5 Sn, 8Mn, 2A1-11Sn-5Zr-1Mo, 4A1-3Mo-1V,
5A1-6Sn-2Zr-1Mo, 6A1-2Sn-4Zr-2Mo,
6A1-2Sn-4Zr-6Mo, 6A1-2Sn-4Zr-2Mo-0.25Si, A
A
A
A
ST and A
ST and A
ST and A 300-350
310-350
320-370
320-380
320-380
375-420
375-440 50
40
30
20
40
20
20
Beta Alloys
13V-11Cr-3A1, 8Mo-8V-2Fe-3A1, 3A1-8V-6Cr-4Mo-4Zr,
11.5Mo-6Zr-4.5Sn A, ST
ST and A 275-350
350-440 25
20
a Abbreviations designate: A, annealed; ST, solution treated; ST and A, solution treated as aged; and HB Brinell hardness number.
Recommended Cutting Speeds in Feet per Minute for Turning, Milling and Drilling* Superalloys
Material
Superalloys Cutting Speed, sfpm
HSS Material
Superalloys Cutting Speed, sfpm
HSS
Roughing Finishing Roughing Finishing
A-286
AF21DA
Air Resist 213
Air Resist 13 and 215
Astroloy
B-1900
CW-12M
Discalloy
FSH-H14
GMR-235 and 235D
Hastelloy B, C, G and X (wrought)
Hastelloy B and C (cast)
Haynes 25 and 188
Haynes 36 and 151
HS 6, 21, 2, 31(X40), 36 and 151
IN 100 and 738
Incoloy 800, 801 and 802
Incoloy 804 and 825
Incoloy 901
Inconel 625, 702, 706, 718 (wrought),
721, 722, X750, 751, 901, 600, 604
Inconel 700 and 702
Inconel 713C and 718 (cast)
J1300
J1570
M252 (wrought)
M252 (cast) 30-35
8-10
15-20
10-12
5-10
8-10
8-12
15-35
10-12
8-10
15-20
8-12
15-20
10-12
10-12
8-10
30-35
15-20
10-20
15-20
10-12
8-10
15-25
15-20
15-20
8-10 35-40
10-15
20-25
10-15
5-15
8-10
10-15
35-40
10-15
8-10
20-25
10-15
20-25
10-15
10-15
8-10
35-40
20-25
20-35
20-25
12-15
8-10
20-30
20-25
20-25
8-10 Mar-M200, M246, M421, M434
Mar-M905 and M918
Mar-M302, M322, and M509
N-12M
N-155
Nasa C-W-Re
Nimonic 75 and 80
Nimonic 90 and 95
Refractaloy 26
Rene 41
Rene 80 and 95
S-590
S-816
T-D Nickel
Udimet 500, 700, and 710
Udimet 630
Unitemp 1753
V-36
V-57
W-545
WI-52
Waspaloy
X-45
16-25-6
19-9DL 8-10
15-20
10-12
8-12
15-20
10-12
15-20
10-12
15-20
10-15
8-10
10-20
10-15
70-80
10-15
10-20
8-10
10-15
30-35
25-35
10-12
10-30
10-12
30-35
25-35 10-12
20-25
10-15
10-15
15-25
10-15
20-25
12-15
20-25
12-20
10-15
15-30
15-20
80-100
12-20
20-25
10-15
15-20
35-40
30-40
10-15
25-35
10-15
35-40
30-40
* For milling and drilling, use the cutter speeds recommended under roughing.