Drilling and Reaming Speeds/Feed Rates for Plain Carbon & Alloy Steels

Material AISI and SAE Steels	Hardness, HB*	Material Condition*	Cutting Speed, fpm
			Drilling	Reaming
			HSS	HSS	Carbide
Free Machining Plain Carbon Steels (Resulphurized)
1212, 1213, 1214	100-150	HR, A	120	80	400
1212, 1213, 1214	150-200	CD	125	80	350
1108, 1109, 1115, 1117, 1118, 1120, 1126, 1211	100-150	HR, A	110	75	375
1108, 1109, 1115, 1117, 1118, 1120, 1126, 1211	150-200	CD	120	80	350
1132, 1137, 1139, 1140, 1144, 1146, 1151	175-225	HR, A, N, CD	100	65	350
	275-325	Q and T	70	45	250
	325-375	Q and T	45	30	175
	375-425	Q and T	35	20	100

Free Machining Plain Carbon Steels (Leaded)
11L17, 11L18, 12L13, 12L14	100-150	HR, A, N, CD	130	85	400
	150-200	HR, A, N, CD	120	80	375
	200-250	N, CD	90	60	275

Plain Carbon Steels
1006, 1008, 1009, 1010, 1012, 1015, 1016, 1017, 1018, 1019, 1020, 1021, 1022, 1023, 1024, 1025, 1026, 1513, 1514	100-125	HR, A, N, CD	100	65	300
	125-175	HR, A, N, CD	90	60	275
	175-225	HR, N, CD	70	45	200
	225-275	CD	60	40	175
1027, 1030, 1033, 1035, 1036, 1037, 1038, 1039, 1040, 1041, 1042, 1043, 1045, 1046, 1048, 1049, 1050, 1052, 1524, 1526, 1527, 1541	125-175	HR, A, N, CD	90	60	250
	175-225	HR, A, N, CD	75	50	200
	225-275	N, CD, Q and T	60	40	150
	275-325	Q and T	50	30	120
	325-375	Q and T	35	20	100
	375-425	Q and T	25	15	80
1055, 1060, 1064, 1065, 1070, 1074, 1078, 1080, 1084,1086, 1090,1095, 1548, 1551, 1552, 1561, 1566	125-175	HR, A, N, CD	85	55	250
	175-225	HR, A, N, CD	70	45	200
	225-275	N, CD, Q and T	50	30	140
	275-325	Q and T	40	25	110
	325-375	Q and T	30	20	90
	375-425	Q and T	15	10	70

Free Machining Alloy Steels (Resulphurized)
4140, 4150	175-200	HR, A, N, CD	90	60	250
	200-250	HR, N, CD	80	50	225
	250-300	Q and T	55	30	200
	300-375	Q and T	40	25	150
	375-425	Q and T	30	15	100

Free Machining Alloy Steels (Leaded)
41L30, 41L40, 41L47, 41L50, 43L47, 51L32, 52L100, 86L20, 86L40	150-200	HR, A, N, CD	100	65	285
	200-250	HR, N, CD	90	60	250
	250-300	Q and T	65	40	200
	300-375	Q and T	45	30	150
	375-425	Q and T	30	15	110

Alloy Steels
4012, 4023, 4024, 4028, 4118, 4120, 4419, 4422, 4427, 4615, 4620, 4621, 4626, 4718, 4720, 4815, 4817, 4820, 5015. 5017, 5020, 6118, 8115, 8615, 8617, 8620, 8622, 8625, 8627, 8620, 8822, 94B17	125-175	HR, A, N, CD	85	55	250
	175-225	HR, N, CD	70	45	225
	225-275	CD, N, Q and T	55	35	200
	275-325	Q and T	50	30	150
	325-375	Q and T	35	25	125
	375-425	Q and T	25	15	90
1330, 1335, 1340, 1345, 4032, 4037, 4042, 4047, 4130, 4135, 4137, 4140, 4142, 4145, 4147, 4150, 4160, 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	HR, A, N, CD	75	50	200
	225-275	N, CD, Q and T	60	40	175
	275-325	N, Q and T	45	30	150
	325-375	N, Q and T	30	15	100
	375-425	Q and T	20	15	80
E51100, E52100	175-225	HR, A, CD	60	40	200
	225-275	N, CD, Q and T	50	30	125
	275-325	N, Q and T	35	25	100
	325-375	N, Q and T	30	20	80
	375-425	Q and T	20	10	50

Ultra High Strength Steels (Not AISI)
AMS6424, AMS6421 (98B37 Mod.), AMS6422 (98BV40), AMS6427, AMS6428, AMS6430, AMS6432, AMS6433, AMS6434, AMS6436, AMS6442, 300M, D6ac	220-300	A	50	30	180
	300-350	N	35	20	125
	350-400	N	20	10	90

Maraging Steels (Not AISI)
18% Nickel Grade 200, 18% Nickel Grade 250, 18% Nickel Grade 300, 18% Nickel Grade 350	250-225	A	50	30	175

Nitriding Steels
Nitralloy 125, Nitralloy 135, Nitralloy 135 (Mod.), Nitralloy 225, Nitralloy 230, Nitralloy N, Nitralloy EZ, Nitralloy I	200-250	A	60	40	175
	250-300	N, Q and T	35	20	125

Hole Diameter	Material Left (Diameter)
.090-.170	.005-.010
.171-.280	.008-.012
.281-.880	.010-.016
.881-2.50	.015-.030

Feeds	Diameter
.001-.003 IPR	.1250 or less
.002-.006 IPR	.1250-.250
.004-.010 IPR	.250-.500
.007-.015 IPR	.500-1.00
.010-.025 IPR	1.00 and up

Speed & Feed Rates

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