Speeds and Feeds Calculator
These are starting parameters for solid carbide end mills in a rigid setup with good tool holding and coolant or air blast. Adjust for your machine, workholding, tool stick-out and tool path. For application help, contact NEXGEN Tooling at (855) 263-2328.
Slotting: Full-width cut (100% of diameter). Chip load in inches per tooth (IPT).
| ISO | Material | Hardness | SFM range | 1/8" | 3/16" | 1/4" | 3/8" | 1/2" | 5/8" | 3/4" | 1" |
|---|---|---|---|---|---|---|---|---|---|---|---|
| N | Wrought aluminum alloy 2014, 5052, 6061 | < 120 HBS | 1440-2160 | .0009 | .0014 | .0018 | .0027 | .0036 | .0045 | .0054 | .0072 |
| N | Wrought aluminum alloy 7050, 7075, 7475 | > 120 HBS | 1280-1920 | .0006 | .0009 | .0012 | .0018 | .0024 | .0030 | .0036 | .0048 |
| N | Cast aluminum alloy 319, 328, 355, 360, 380, 383, 390, 520, 535 | < 120 HBS | 720-1080 | .0014 | .0021 | .0028 | .0042 | .0056 | .0070 | .0084 | .0112 |
| N | Cast aluminum alloy 319, 328, 355, 360, 380, 383, 390, 520, 535 | > 120 HBS | 600-900 | .0010 | .0015 | .0020 | .0030 | .0040 | .0050 | .0060 | .0080 |
| N | Copper / brass C10100-C15999, C20000-C49999 | < 75 HRB | 440-660 | .0008 | .0012 | .0016 | .0024 | .0032 | .0040 | .0048 | .0064 |
| N | Copper / brass C10100-C15999, C20000-C49999 | 75-98 HRB | 350-520 | .0007 | .0011 | .0014 | .0021 | .0028 | .0035 | .0042 | .0056 |
| P | Carbon steel 10XX, 11XX, 12XX | < 75 HRB | 360-540 | .0008 | .0012 | .0016 | .0024 | .0032 | .0040 | .0048 | .0064 |
| P | Carbon steel 12LXX, ASTM A27 | 75-98 HRB | 360-540 | .0008 | .0011 | .0015 | .0023 | .0031 | .0038 | .0046 | .0061 |
| P | Carbon steel ASTM A36 | 21-26 HRC | 280-420 | .0007 | .0011 | .0015 | .0022 | .0029 | .0036 | .0044 | .0058 |
| P | Carbon steel ASTM A36 | 71-98 HRB | 360-540 | .0007 | .0011 | .0014 | .0021 | .0028 | .0035 | .0042 | .0056 |
| P | Alloy steel 12XX, 41XX, 43XX, 300M | 21-36 HRC | 305-455 | .0007 | .0011 | .0014 | .0021 | .0028 | .0035 | .0042 | .0056 |
| P | Alloy steel 51XX, 86XX, 93XX | 36-50 HRC | 180-270 | .0006 | .0009 | .0012 | .0018 | .0024 | .0030 | .0036 | .0048 |
| P | Alloy steel 51XX, 86XX, 93XX | > 50 HRC | 80-120 | .0006 | .0008 | .0011 | .0017 | .0023 | .0028 | .0034 | .0045 |
| P | Tool steel A2, H13, L6, P20, S7 | 71-98 HRB | 180-270 | .0008 | .0012 | .0016 | .0024 | .0032 | .0040 | .0048 | .0064 |
| P | Tool steel A2, H13, L6, P20, S7 | 21-36 HRC | 145-215 | .0006 | .0009 | .0012 | .0018 | .0024 | .0030 | .0036 | .0048 |
| P | Tool steel A2, H13, L6, P20, S7 | 36-50 HRC | 105-155 | .0004 | .0007 | .0009 | .0013 | .0018 | .0022 | .0026 | .0035 |
| P | Tool steel A2, H13, L6, P20, S7 | > 50 HRC | 70-110 | .0004 | .0005 | .0007 | .0011 | .0015 | .0018 | .0022 | .0029 |
| P | Specialty alloy (maraging) Maraging 200 | 75-98 HRB | 260-390 | .0008 | .0012 | .0016 | .0024 | .0032 | .0040 | .0048 | .0064 |
| P | Specialty alloy (maraging) Maraging 250 | 21-36 HRC | 180-270 | .0006 | .0009 | .0012 | .0018 | .0024 | .0030 | .0036 | .0048 |
| P | Specialty alloy (maraging) Maraging 300 | 36-50 HRC | 120-180 | .0006 | .0008 | .0011 | .0017 | .0023 | .0028 | .0034 | .0045 |
| P | Specialty alloy (maraging) Maraging 350 | > 50 HRC | 40-60 | .0004 | .0005 | .0007 | .0011 | .0015 | .0018 | .0022 | .0029 |
| M | Austenitic stainless steel Nitronic 50, Nitronic 60, 301, 303 | 75-98 HRB | 200-300 | .0007 | .0011 | .0014 | .0021 | .0028 | .0035 | .0042 | .0056 |
| M | Austenitic stainless steel 304, 304L | 21-36 HRC | 180-270 | .0006 | .0009 | .0012 | .0018 | .0024 | .0030 | .0036 | .0048 |
| M | Austenitic stainless steel Incoloy 27-7MO, 316, 316L, 321, 347 | 36-50 HRC | 145-215 | .0005 | .0008 | .0010 | .0015 | .0020 | .0025 | .0030 | .0040 |
| M | Martensitic & ferritic stainless steel 403, 410, 416, 420 | 75-98 HRB | 260-390 | .0007 | .0011 | .0014 | .0021 | .0028 | .0035 | .0042 | .0056 |
| M | Martensitic & ferritic stainless steel 440, 430, 446 | 21-36 HRC | 260-390 | .0006 | .0009 | .0012 | .0018 | .0024 | .0030 | .0036 | .0048 |
| M | PH stainless steel 15-5, 17-4 | 21-36 HRC | 170-250 | .0005 | .0007 | .0010 | .0015 | .0020 | .0025 | .0030 | .0040 |
| M | PH stainless steel 15-5, 17-4 (H900-H1025), Carpenter 450, Carpenter 465 | 36-50 HRC | 110-160 | .0004 | .0006 | .0009 | .0013 | .0017 | .0021 | .0026 | .0034 |
| K | Gray cast iron SAE J431, ASTM A48 | 75-98 HRB | 240-360 | .0010 | .0015 | .0020 | .0030 | .0040 | .0050 | .0060 | .0080 |
| K | Gray cast iron SAE J431, ASTM A48 | 21-36 HRC | 120-180 | .0009 | .0014 | .0018 | .0027 | .0036 | .0045 | .0054 | .0072 |
| K | Malleable cast iron ASTM A47, ASTM A220 | 75-98 HRB | 280-420 | .0009 | .0014 | .0018 | .0027 | .0036 | .0045 | .0054 | .0072 |
| K | Malleable cast iron ASTM A602 | 21-36 HRC | 260-390 | .0006 | .0009 | .0012 | .0018 | .0024 | .0030 | .0036 | .0048 |
| K | Nodular (ductile) cast iron ASTM A536, ASTM A897 | 75-98 HRB | 280-420 | .0009 | .0014 | .0018 | .0027 | .0036 | .0045 | .0054 | .0072 |
| K | Nodular (ductile) cast iron ASTM A536, ASTM A897 | 21-36 HRC | 220-330 | .0006 | .0009 | .0012 | .0018 | .0024 | .0030 | .0036 | .0048 |
| K | Nodular (ductile) cast iron ASTM A536, ASTM A897 | 36-50 HRC | 140-210 | .0005 | .0008 | .0010 | .0015 | .0020 | .0025 | .0030 | .0040 |
| S | Low expansion alloy Invar 36, Kovar | 60-85 HRB | 145-215 | .0010 | .0015 | .0020 | .0030 | .0040 | .0050 | .0060 | .0080 |
| S | Nickel alloy Hastelloy C022, Inconel 625, Waspaloy, Rene 41, Inconel 718, Incoloy 20 | 75-98 HRB | 80-120 | .0005 | .0007 | .0010 | .0014 | .0019 | .0024 | .0029 | .0039 |
| S | Nickel alloy Hastelloy C022, Inconel 625, Waspaloy, Rene 41, Inconel 718, Incoloy 20 | 21-36 HRC | 70-100 | .0004 | .0006 | .0008 | .0012 | .0016 | .0020 | .0024 | .0033 |
| S | Nickel alloy Hastelloy C022, Inconel 625, Waspaloy, Rene 41, Inconel 718, Incoloy 20 | 36-50 HRC | 55-85 | .0003 | .0005 | .0007 | .0010 | .0014 | .0017 | .0021 | .0028 |
| S | Pure titanium Grade 1, 2, 3, 4, 7, 12 | 75-98 HRB | 240-360 | .0013 | .0020 | .0026 | .0039 | .0052 | .0065 | .0078 | .0104 |
| S | Pure titanium Grade 1, 2, 3, 4, 7, 12 | 21-36 HRC | 220-330 | .0010 | .0015 | .0020 | .0030 | .0040 | .0050 | .0060 | .0080 |
| S | Pure titanium Grade 1, 2, 3, 4, 7, 12 | 36-50 HRC | 200-300 | .0008 | .0012 | .0016 | .0024 | .0032 | .0040 | .0048 | .0064 |
| S | Titanium alloy Ti-6Al-4V | 21-36 HRC | 145-215 | .0006 | .0009 | .0012 | .0018 | .0025 | .0031 | .0037 | .0049 |
| S | Titanium alloy Ti-6Al-4V | 36-50 HRC | 125-185 | .0005 | .0008 | .0010 | .0016 | .0021 | .0026 | .0031 | .0042 |
| S | Cobalt alloy ASTM F562, ASTM F90, ASTM F75, ASTM F799 | 75-98 HRB | 200-300 | .0004 | .0007 | .0009 | .0013 | .0018 | .0022 | .0026 | .0035 |
| S | Cobalt alloy ASTM F562, ASTM F90, ASTM F75, ASTM F799 | 21-36 HRC | 120-180 | .0004 | .0006 | .0008 | .0012 | .0016 | .0020 | .0024 | .0032 |
| S | Cobalt alloy ASTM F562, ASTM F90, ASTM F75, ASTM F799 | 36-50 HRC | 70-110 | .0004 | .0005 | .0007 | .0011 | .0015 | .0018 | .0022 | .0029 |
Roughing: Traditional roughing / profiling. Radial width about 20% of diameter (30% in aluminum). Chip load in inches per tooth (IPT).
| ISO | Material | Hardness | SFM range | 1/8" | 3/16" | 1/4" | 3/8" | 1/2" | 5/8" | 3/4" | 1" |
|---|---|---|---|---|---|---|---|---|---|---|---|
| N | Wrought aluminum alloy 2014, 5052, 6061 | < 120 HBS | 1440-2160 | .0020 | .0030 | .0040 | .0059 | .0079 | .0099 | .0119 | .0158 |
| N | Wrought aluminum alloy 7050, 7075, 7475 | > 120 HBS | 1280-1920 | .0013 | .0020 | .0026 | .0040 | .0053 | .0066 | .0079 | .0106 |
| N | Cast aluminum alloy 319, 328, 355, 360, 380, 383, 390, 520, 535 | < 120 HBS | 720-1080 | .0031 | .0046 | .0062 | .0092 | .0123 | .0154 | .0185 | .0246 |
| N | Cast aluminum alloy 319, 328, 355, 360, 380, 383, 390, 520, 535 | > 120 HBS | 600-900 | .0022 | .0033 | .0044 | .0066 | .0088 | .0110 | .0132 | .0176 |
| N | Copper / brass C10100-C15999, C20000-C49999 | < 75 HRB | 440-660 | .0010 | .0015 | .0020 | .0030 | .0040 | .0050 | .0060 | .0080 |
| N | Copper / brass C10100-C15999, C20000-C49999 | 75-98 HRB | 350-520 | .0009 | .0013 | .0018 | .0026 | .0035 | .0044 | .0053 | .0070 |
| P | Carbon steel 10XX, 11XX, 12XX | < 75 HRB | 360-540 | .0012 | .0018 | .0024 | .0037 | .0049 | .0061 | .0073 | .0098 |
| P | Carbon steel 12LXX, ASTM A27 | 75-98 HRB | 360-540 | .0010 | .0014 | .0019 | .0029 | .0038 | .0048 | .0057 | .0076 |
| P | Carbon steel ASTM A36 | 21-26 HRC | 280-420 | .0009 | .0014 | .0018 | .0027 | .0036 | .0045 | .0054 | .0073 |
| P | Carbon steel ASTM A36 | 71-98 HRB | 360-540 | .0009 | .0013 | .0018 | .0026 | .0035 | .0044 | .0053 | .0070 |
| P | Alloy steel 12XX, 41XX, 43XX, 300M | 21-36 HRC | 305-455 | .0009 | .0013 | .0018 | .0026 | .0035 | .0044 | .0053 | .0070 |
| P | Alloy steel 51XX, 86XX, 93XX | 36-50 HRC | 190-290 | .0008 | .0011 | .0015 | .0023 | .0030 | .0038 | .0045 | .0060 |
| P | Alloy steel 51XX, 86XX, 93XX | > 50 HRC | 80-120 | .0007 | .0011 | .0014 | .0021 | .0028 | .0035 | .0042 | .0056 |
| P | Tool steel A2, H13, L6, P20, S7 | 71-98 HRB | 225-335 | .0010 | .0015 | .0020 | .0030 | .0040 | .0050 | .0060 | .0080 |
| P | Tool steel A2, H13, L6, P20, S7 | 21-36 HRC | 170-260 | .0008 | .0011 | .0015 | .0023 | .0030 | .0038 | .0045 | .0060 |
| P | Tool steel A2, H13, L6, P20, S7 | 36-50 HRC | 105-155 | .0005 | .0008 | .0011 | .0016 | .0022 | .0027 | .0033 | .0044 |
| P | Tool steel A2, H13, L6, P20, S7 | > 50 HRC | 70-110 | .0005 | .0007 | .0009 | .0014 | .0018 | .0023 | .0027 | .0036 |
| P | Specialty alloy (maraging) Maraging 200 | 75-98 HRB | 260-390 | .0010 | .0015 | .0020 | .0030 | .0040 | .0050 | .0060 | .0080 |
| P | Specialty alloy (maraging) Maraging 250 | 21-36 HRC | 180-270 | .0008 | .0011 | .0015 | .0023 | .0030 | .0038 | .0045 | .0060 |
| P | Specialty alloy (maraging) Maraging 300 | 36-50 HRC | 120-180 | .0007 | .0011 | .0014 | .0021 | .0028 | .0035 | .0042 | .0056 |
| P | Specialty alloy (maraging) Maraging 350 | > 50 HRC | 40-60 | .0005 | .0007 | .0009 | .0014 | .0018 | .0023 | .0027 | .0036 |
| M | Austenitic stainless steel Nitronic 50, Nitronic 60, 301, 303 | 75-98 HRB | 200-300 | .0009 | .0013 | .0018 | .0026 | .0035 | .0044 | .0053 | .0070 |
| M | Austenitic stainless steel 304, 304L | 21-36 HRC | 180-270 | .0008 | .0011 | .0015 | .0023 | .0030 | .0038 | .0045 | .0060 |
| M | Austenitic stainless steel Incoloy 27-7MO, 316, 316L, 321, 347 | 36-50 HRC | 145-215 | .0006 | .0009 | .0013 | .0019 | .0025 | .0031 | .0038 | .0050 |
| M | Martensitic & ferritic stainless steel 403, 410, 416, 420 | 75-98 HRB | 260-390 | .0009 | .0013 | .0018 | .0026 | .0035 | .0044 | .0053 | .0070 |
| M | Martensitic & ferritic stainless steel 440, 430, 446 | 21-36 HRC | 260-390 | .0008 | .0011 | .0015 | .0023 | .0030 | .0038 | .0045 | .0060 |
| M | PH stainless steel 15-5, 17-4 | 21-36 HRC | 170-250 | .0006 | .0009 | .0012 | .0019 | .0025 | .0031 | .0037 | .0049 |
| M | PH stainless steel 15-5, 17-4 (H900-H1025), Carpenter 450, Carpenter 465 | 36-50 HRC | 110-160 | .0005 | .0008 | .0011 | .0016 | .0021 | .0027 | .0032 | .0043 |
| K | Gray cast iron SAE J431, ASTM A48 | 75-98 HRB | 285-425 | .0013 | .0019 | .0025 | .0038 | .0050 | .0063 | .0075 | .0100 |
| K | Gray cast iron SAE J431, ASTM A48 | 21-36 HRC | 120-180 | .0011 | .0017 | .0023 | .0034 | .0045 | .0056 | .0068 | .0090 |
| K | Malleable cast iron ASTM A47, ASTM A220 | 75-98 HRB | 280-420 | .0011 | .0017 | .0023 | .0034 | .0045 | .0056 | .0068 | .0090 |
| K | Malleable cast iron ASTM A602 | 21-36 HRC | 260-390 | .0008 | .0011 | .0015 | .0023 | .0030 | .0038 | .0045 | .0060 |
| K | Nodular (ductile) cast iron ASTM A536, ASTM A897 | 75-98 HRB | 280-420 | .0011 | .0017 | .0023 | .0034 | .0045 | .0056 | .0068 | .0090 |
| K | Nodular (ductile) cast iron ASTM A536, ASTM A897 | 21-36 HRC | 220-330 | .0008 | .0011 | .0015 | .0023 | .0030 | .0038 | .0045 | .0060 |
| K | Nodular (ductile) cast iron ASTM A536, ASTM A897 | 36-50 HRC | 140-210 | .0006 | .0009 | .0013 | .0019 | .0025 | .0031 | .0038 | .0050 |
| S | Low expansion alloy Invar 36, Kovar | 60-85 HRB | 145-215 | .0013 | .0019 | .0025 | .0038 | .0050 | .0063 | .0075 | .0100 |
| S | Nickel alloy Hastelloy C022, Inconel 625, Waspaloy, Rene 41, Inconel 718, Incoloy 20 | 75-98 HRB | 80-120 | .0006 | .0009 | .0012 | .0018 | .0024 | .0030 | .0036 | .0048 |
| S | Nickel alloy Hastelloy C022, Inconel 625, Waspaloy, Rene 41, Inconel 718, Incoloy 20 | 21-36 HRC | 70-100 | .0005 | .0008 | .0010 | .0015 | .0020 | .0025 | .0030 | .0041 |
| S | Nickel alloy Hastelloy C022, Inconel 625, Waspaloy, Rene 41, Inconel 718, Incoloy 20 | 36-50 HRC | 55-85 | .0004 | .0006 | .0009 | .0013 | .0017 | .0021 | .0026 | .0034 |
| S | Pure titanium Grade 1, 2, 3, 4, 7, 12 | 75-98 HRB | 240-360 | .0016 | .0024 | .0033 | .0049 | .0065 | .0081 | .0098 | .0130 |
| S | Pure titanium Grade 1, 2, 3, 4, 7, 12 | 21-36 HRC | 220-330 | .0013 | .0019 | .0025 | .0038 | .0050 | .0063 | .0075 | .0100 |
| S | Pure titanium Grade 1, 2, 3, 4, 7, 12 | 36-50 HRC | 200-300 | .0010 | .0015 | .0020 | .0030 | .0040 | .0050 | .0060 | .0080 |
| S | Titanium alloy Ti-6Al-4V | 21-36 HRC | 200-300 | .0008 | .0011 | .0015 | .0023 | .0031 | .0038 | .0046 | .0061 |
| S | Titanium alloy Ti-6Al-4V | 36-50 HRC | 170-260 | .0006 | .0010 | .0013 | .0019 | .0026 | .0032 | .0039 | .0052 |
| S | Cobalt alloy ASTM F562, ASTM F90, ASTM F75, ASTM F799 | 75-98 HRB | 200-300 | .0005 | .0008 | .0011 | .0016 | .0022 | .0027 | .0033 | .0044 |
| S | Cobalt alloy ASTM F562, ASTM F90, ASTM F75, ASTM F799 | 21-36 HRC | 120-180 | .0005 | .0008 | .0010 | .0015 | .0020 | .0025 | .0030 | .0040 |
| S | Cobalt alloy ASTM F562, ASTM F90, ASTM F75, ASTM F799 | 36-50 HRC | 70-110 | .0005 | .0007 | .0009 | .0014 | .0018 | .0023 | .0027 | .0036 |
HEM: High-efficiency roughing with a constant-engagement tool path. Radial width about 7.5% of diameter (25% in aluminum). Chip load in inches per tooth (IPT).
| ISO | Material | Hardness | SFM range | 1/8" | 3/16" | 1/4" | 3/8" | 1/2" | 5/8" | 3/4" | 1" |
|---|---|---|---|---|---|---|---|---|---|---|---|
| N | Wrought aluminum alloy 2014, 5052, 6061 | < 120 HBS | 1440-2160 | .0025 | .0038 | .0050 | .0076 | .0101 | .0126 | .0151 | .0202 |
| N | Wrought aluminum alloy 7050, 7075, 7475 | > 120 HBS | 1280-1920 | .0017 | .0025 | .0034 | .0050 | .0067 | .0084 | .0101 | .0134 |
| N | Cast aluminum alloy 319, 328, 355, 360, 380, 383, 390, 520, 535 | < 120 HBS | 720-1080 | .0039 | .0059 | .0078 | .0118 | .0157 | .0196 | .0235 | .0314 |
| N | Cast aluminum alloy 319, 328, 355, 360, 380, 383, 390, 520, 535 | > 120 HBS | 600-900 | .0028 | .0042 | .0056 | .0084 | .0112 | .0140 | .0168 | .0224 |
| N | Copper / brass C10100-C15999, C20000-C49999 | < 75 HRB | 440-660 | .0015 | .0023 | .0030 | .0045 | .0060 | .0075 | .0090 | .0120 |
| N | Copper / brass C10100-C15999, C20000-C49999 | 75-98 HRB | 350-520 | .0013 | .0020 | .0026 | .0039 | .0053 | .0066 | .0079 | .0105 |
| P | Carbon steel 10XX, 11XX, 12XX | < 75 HRB | 375-565 | .0015 | .0023 | .0030 | .0045 | .0060 | .0075 | .0090 | .0120 |
| P | Carbon steel 12LXX, ASTM A27 | 75-98 HRB | 375-565 | .0014 | .0021 | .0029 | .0043 | .0057 | .0071 | .0086 | .0114 |
| P | Carbon steel ASTM A36 | 21-26 HRC | 320-480 | .0014 | .0020 | .0027 | .0041 | .0054 | .0068 | .0082 | .0109 |
| P | Carbon steel ASTM A36 | 71-98 HRB | 375-565 | .0013 | .0020 | .0026 | .0039 | .0053 | .0066 | .0079 | .0105 |
| P | Alloy steel 12XX, 41XX, 43XX, 300M | 21-36 HRC | 320-480 | .0013 | .0020 | .0026 | .0039 | .0053 | .0066 | .0079 | .0105 |
| P | Alloy steel 51XX, 86XX, 93XX | 36-50 HRC | 240-360 | .0011 | .0017 | .0023 | .0034 | .0045 | .0056 | .0068 | .0090 |
| P | Alloy steel 51XX, 86XX, 93XX | > 50 HRC | 80-120 | .0011 | .0016 | .0021 | .0032 | .0042 | .0053 | .0063 | .0084 |
| P | Tool steel A2, H13, L6, P20, S7 | 71-98 HRB | 305-455 | .0015 | .0023 | .0030 | .0045 | .0060 | .0075 | .0090 | .0120 |
| P | Tool steel A2, H13, L6, P20, S7 | 21-36 HRC | 270-400 | .0011 | .0017 | .0023 | .0034 | .0045 | .0056 | .0068 | .0090 |
| P | Tool steel A2, H13, L6, P20, S7 | 36-50 HRC | 175-265 | .0008 | .0012 | .0016 | .0025 | .0033 | .0041 | .0049 | .0066 |
| P | Tool steel A2, H13, L6, P20, S7 | > 50 HRC | 70-110 | .0007 | .0010 | .0014 | .0020 | .0027 | .0034 | .0041 | .0054 |
| P | Specialty alloy (maraging) Maraging 200 | 75-98 HRB | 260-390 | .0015 | .0023 | .0030 | .0045 | .0060 | .0075 | .0090 | .0120 |
| P | Specialty alloy (maraging) Maraging 250 | 21-36 HRC | 180-270 | .0011 | .0017 | .0023 | .0034 | .0045 | .0056 | .0068 | .0090 |
| P | Specialty alloy (maraging) Maraging 300 | 36-50 HRC | 120-180 | .0011 | .0016 | .0021 | .0032 | .0042 | .0053 | .0063 | .0084 |
| P | Specialty alloy (maraging) Maraging 350 | > 50 HRC | 40-60 | .0007 | .0010 | .0014 | .0020 | .0027 | .0034 | .0041 | .0054 |
| M | Austenitic stainless steel Nitronic 50, Nitronic 60, 301, 303 | 75-98 HRB | 285-425 | .0013 | .0020 | .0026 | .0039 | .0053 | .0066 | .0079 | .0105 |
| M | Austenitic stainless steel 304, 304L | 21-36 HRC | 270-410 | .0011 | .0017 | .0023 | .0034 | .0045 | .0056 | .0068 | .0090 |
| M | Austenitic stainless steel Incoloy 27-7MO, 316, 316L, 321, 347 | 36-50 HRC | 240-360 | .0009 | .0014 | .0019 | .0028 | .0038 | .0047 | .0056 | .0075 |
| M | Martensitic & ferritic stainless steel 403, 410, 416, 420 | 75-98 HRB | 300-450 | .0013 | .0020 | .0026 | .0039 | .0053 | .0066 | .0079 | .0105 |
| M | Martensitic & ferritic stainless steel 440, 430, 446 | 21-36 HRC | 290-440 | .0011 | .0017 | .0023 | .0034 | .0045 | .0056 | .0068 | .0090 |
| M | PH stainless steel 15-5, 17-4 | 21-36 HRC | 255-385 | .0009 | .0014 | .0019 | .0028 | .0037 | .0046 | .0056 | .0074 |
| M | PH stainless steel 15-5, 17-4 (H900-H1025), Carpenter 450, Carpenter 465 | 36-50 HRC | 185-275 | .0008 | .0012 | .0016 | .0024 | .0032 | .0040 | .0048 | .0064 |
| K | Gray cast iron SAE J431, ASTM A48 | 75-98 HRB | 320-480 | .0019 | .0028 | .0038 | .0056 | .0075 | .0094 | .0113 | .0150 |
| K | Gray cast iron SAE J431, ASTM A48 | 21-36 HRC | 180-270 | .0017 | .0025 | .0034 | .0051 | .0068 | .0084 | .0101 | .0135 |
| K | Malleable cast iron ASTM A47, ASTM A220 | 75-98 HRB | 295-445 | .0017 | .0025 | .0034 | .0051 | .0068 | .0084 | .0101 | .0135 |
| K | Malleable cast iron ASTM A602 | 21-36 HRC | 290-430 | .0011 | .0017 | .0023 | .0034 | .0045 | .0056 | .0068 | .0090 |
| K | Nodular (ductile) cast iron ASTM A536, ASTM A897 | 75-98 HRB | 280-420 | .0017 | .0025 | .0034 | .0051 | .0068 | .0084 | .0101 | .0135 |
| K | Nodular (ductile) cast iron ASTM A536, ASTM A897 | 21-36 HRC | 220-330 | .0011 | .0017 | .0023 | .0034 | .0045 | .0056 | .0068 | .0090 |
| K | Nodular (ductile) cast iron ASTM A536, ASTM A897 | 36-50 HRC | 140-210 | .0009 | .0014 | .0019 | .0028 | .0038 | .0047 | .0056 | .0075 |
| S | Low expansion alloy Invar 36, Kovar | 60-85 HRB | 215-325 | .0019 | .0028 | .0038 | .0056 | .0075 | .0094 | .0113 | .0150 |
| S | Nickel alloy Hastelloy C022, Inconel 625, Waspaloy, Rene 41, Inconel 718, Incoloy 20 | 75-98 HRB | 80-120 | .0009 | .0014 | .0018 | .0027 | .0036 | .0045 | .0054 | .0072 |
| S | Nickel alloy Hastelloy C022, Inconel 625, Waspaloy, Rene 41, Inconel 718, Incoloy 20 | 21-36 HRC | 70-110 | .0008 | .0011 | .0015 | .0023 | .0030 | .0038 | .0046 | .0061 |
| S | Nickel alloy Hastelloy C022, Inconel 625, Waspaloy, Rene 41, Inconel 718, Incoloy 20 | 36-50 HRC | 60-90 | .0006 | .0010 | .0013 | .0019 | .0026 | .0032 | .0039 | .0052 |
| S | Pure titanium Grade 1, 2, 3, 4, 7, 12 | 75-98 HRB | 240-360 | .0024 | .0037 | .0049 | .0073 | .0098 | .0122 | .0146 | .0195 |
| S | Pure titanium Grade 1, 2, 3, 4, 7, 12 | 21-36 HRC | 220-330 | .0019 | .0028 | .0038 | .0056 | .0075 | .0094 | .0113 | .0150 |
| S | Pure titanium Grade 1, 2, 3, 4, 7, 12 | 36-50 HRC | 200-300 | .0015 | .0023 | .0030 | .0045 | .0060 | .0075 | .0090 | .0120 |
| S | Titanium alloy Ti-6Al-4V | 21-36 HRC | 280-420 | .0011 | .0017 | .0023 | .0034 | .0046 | .0057 | .0069 | .0092 |
| S | Titanium alloy Ti-6Al-4V | 36-50 HRC | 240-360 | .0010 | .0015 | .0019 | .0029 | .0039 | .0049 | .0058 | .0078 |
| S | Cobalt alloy ASTM F562, ASTM F90, ASTM F75, ASTM F799 | 75-98 HRB | 200-300 | .0008 | .0012 | .0016 | .0025 | .0033 | .0041 | .0049 | .0066 |
| S | Cobalt alloy ASTM F562, ASTM F90, ASTM F75, ASTM F799 | 21-36 HRC | 135-205 | .0008 | .0011 | .0015 | .0023 | .0030 | .0038 | .0045 | .0060 |
| S | Cobalt alloy ASTM F562, ASTM F90, ASTM F75, ASTM F799 | 36-50 HRC | 70-110 | .0007 | .0010 | .0014 | .0020 | .0027 | .0034 | .0041 | .0054 |
Finishing: Finish pass, 5% of diameter or less radial. Chip load in inches per tooth (IPT).
| ISO | Material | Hardness | SFM range | 1/8" | 3/16" | 1/4" | 3/8" | 1/2" | 5/8" | 3/4" | 1" |
|---|---|---|---|---|---|---|---|---|---|---|---|
| N | Wrought aluminum alloy 2014, 5052, 6061 | < 120 HBS | 1440-2160 | .0009 | .0014 | .0018 | .0027 | .0036 | .0045 | .0054 | .0072 |
| N | Wrought aluminum alloy 7050, 7075, 7475 | > 120 HBS | 1280-1920 | .0006 | .0009 | .0012 | .0018 | .0024 | .0030 | .0036 | .0048 |
| N | Cast aluminum alloy 319, 328, 355, 360, 380, 383, 390, 520, 535 | < 120 HBS | 720-1080 | .0014 | .0021 | .0028 | .0042 | .0056 | .0070 | .0084 | .0112 |
| N | Cast aluminum alloy 319, 328, 355, 360, 380, 383, 390, 520, 535 | > 120 HBS | 600-900 | .0010 | .0015 | .0020 | .0030 | .0040 | .0050 | .0060 | .0080 |
| N | Copper / brass C10100-C15999, C20000-C49999 | < 75 HRB | 440-660 | .0008 | .0012 | .0016 | .0024 | .0032 | .0040 | .0048 | .0064 |
| N | Copper / brass C10100-C15999, C20000-C49999 | 75-98 HRB | 350-520 | .0007 | .0011 | .0014 | .0021 | .0028 | .0035 | .0042 | .0056 |
| P | Carbon steel 10XX, 11XX, 12XX | < 75 HRB | 370-550 | .0008 | .0012 | .0016 | .0024 | .0032 | .0040 | .0048 | .0064 |
| P | Carbon steel 12LXX, ASTM A27 | 75-98 HRB | 370-550 | .0008 | .0011 | .0015 | .0023 | .0031 | .0038 | .0046 | .0061 |
| P | Carbon steel ASTM A36 | 21-26 HRC | 300-450 | .0007 | .0011 | .0015 | .0022 | .0029 | .0036 | .0044 | .0058 |
| P | Carbon steel ASTM A36 | 71-98 HRB | 370-550 | .0007 | .0011 | .0014 | .0021 | .0028 | .0035 | .0042 | .0056 |
| P | Alloy steel 12XX, 41XX, 43XX, 300M | 21-36 HRC | 310-470 | .0007 | .0011 | .0014 | .0021 | .0028 | .0035 | .0042 | .0056 |
| P | Alloy steel 51XX, 86XX, 93XX | 36-50 HRC | 210-310 | .0006 | .0009 | .0012 | .0018 | .0024 | .0030 | .0036 | .0048 |
| P | Alloy steel 51XX, 86XX, 93XX | > 50 HRC | 80-120 | .0006 | .0008 | .0011 | .0017 | .0023 | .0028 | .0034 | .0045 |
| P | Tool steel A2, H13, L6, P20, S7 | 71-98 HRB | 240-360 | .0008 | .0012 | .0016 | .0024 | .0032 | .0040 | .0048 | .0064 |
| P | Tool steel A2, H13, L6, P20, S7 | 21-36 HRC | 210-310 | .0006 | .0009 | .0012 | .0018 | .0024 | .0030 | .0036 | .0048 |
| P | Tool steel A2, H13, L6, P20, S7 | 36-50 HRC | 140-210 | .0004 | .0007 | .0009 | .0013 | .0018 | .0022 | .0026 | .0035 |
| P | Tool steel A2, H13, L6, P20, S7 | > 50 HRC | 70-110 | .0004 | .0005 | .0007 | .0011 | .0015 | .0018 | .0022 | .0029 |
| P | Specialty alloy (maraging) Maraging 200 | 75-98 HRB | 260-390 | .0008 | .0012 | .0016 | .0024 | .0032 | .0040 | .0048 | .0064 |
| P | Specialty alloy (maraging) Maraging 250 | 21-36 HRC | 180-270 | .0006 | .0009 | .0012 | .0018 | .0024 | .0030 | .0036 | .0048 |
| P | Specialty alloy (maraging) Maraging 300 | 36-50 HRC | 120-180 | .0006 | .0008 | .0011 | .0017 | .0023 | .0028 | .0034 | .0045 |
| P | Specialty alloy (maraging) Maraging 350 | > 50 HRC | 40-60 | .0004 | .0005 | .0007 | .0011 | .0015 | .0018 | .0022 | .0029 |
| M | Austenitic stainless steel Nitronic 50, Nitronic 60, 301, 303 | 75-98 HRB | 240-360 | .0007 | .0011 | .0014 | .0021 | .0028 | .0035 | .0042 | .0056 |
| M | Austenitic stainless steel 304, 304L | 21-36 HRC | 225-335 | .0006 | .0009 | .0012 | .0018 | .0024 | .0030 | .0036 | .0048 |
| M | Austenitic stainless steel Incoloy 27-7MO, 316, 316L, 321, 347 | 36-50 HRC | 190-290 | .0005 | .0008 | .0010 | .0015 | .0020 | .0025 | .0030 | .0040 |
| M | Martensitic & ferritic stainless steel 403, 410, 416, 420 | 75-98 HRB | 280-420 | .0007 | .0011 | .0014 | .0021 | .0028 | .0035 | .0042 | .0056 |
| M | Martensitic & ferritic stainless steel 440, 430, 446 | 21-36 HRC | 275-415 | .0006 | .0009 | .0012 | .0018 | .0024 | .0030 | .0036 | .0048 |
| M | PH stainless steel 15-5, 17-4 | 21-36 HRC | 210-320 | .0005 | .0007 | .0010 | .0015 | .0020 | .0025 | .0030 | .0040 |
| M | PH stainless steel 15-5, 17-4 (H900-H1025), Carpenter 450, Carpenter 465 | 36-50 HRC | 145-215 | .0004 | .0006 | .0009 | .0013 | .0017 | .0021 | .0026 | .0034 |
| K | Gray cast iron SAE J431, ASTM A48 | 75-98 HRB | 280-420 | .0010 | .0015 | .0020 | .0030 | .0040 | .0050 | .0060 | .0080 |
| K | Gray cast iron SAE J431, ASTM A48 | 21-36 HRC | 150-230 | .0009 | .0014 | .0018 | .0027 | .0036 | .0045 | .0054 | .0072 |
| K | Malleable cast iron ASTM A47, ASTM A220 | 75-98 HRB | 290-430 | .0009 | .0014 | .0018 | .0027 | .0036 | .0045 | .0054 | .0072 |
| K | Malleable cast iron ASTM A602 | 21-36 HRC | 270-410 | .0006 | .0009 | .0012 | .0018 | .0024 | .0030 | .0036 | .0048 |
| K | Nodular (ductile) cast iron ASTM A536, ASTM A897 | 75-98 HRB | 280-420 | .0009 | .0014 | .0018 | .0027 | .0036 | .0045 | .0054 | .0072 |
| K | Nodular (ductile) cast iron ASTM A536, ASTM A897 | 21-36 HRC | 220-330 | .0006 | .0009 | .0012 | .0018 | .0024 | .0030 | .0036 | .0048 |
| K | Nodular (ductile) cast iron ASTM A536, ASTM A897 | 36-50 HRC | 140-210 | .0005 | .0008 | .0010 | .0015 | .0020 | .0025 | .0030 | .0040 |
| S | Low expansion alloy Invar 36, Kovar | 60-85 HRB | 180-270 | .0010 | .0015 | .0020 | .0030 | .0040 | .0050 | .0060 | .0080 |
| S | Nickel alloy Hastelloy C022, Inconel 625, Waspaloy, Rene 41, Inconel 718, Incoloy 20 | 75-98 HRB | 80-120 | .0005 | .0007 | .0010 | .0014 | .0019 | .0024 | .0029 | .0039 |
| S | Nickel alloy Hastelloy C022, Inconel 625, Waspaloy, Rene 41, Inconel 718, Incoloy 20 | 21-36 HRC | 70-110 | .0004 | .0006 | .0008 | .0012 | .0016 | .0020 | .0024 | .0033 |
| S | Nickel alloy Hastelloy C022, Inconel 625, Waspaloy, Rene 41, Inconel 718, Incoloy 20 | 36-50 HRC | 55-85 | .0003 | .0005 | .0007 | .0010 | .0014 | .0017 | .0021 | .0028 |
| S | Pure titanium Grade 1, 2, 3, 4, 7, 12 | 75-98 HRB | 240-360 | .0013 | .0020 | .0026 | .0039 | .0052 | .0065 | .0078 | .0104 |
| S | Pure titanium Grade 1, 2, 3, 4, 7, 12 | 21-36 HRC | 220-330 | .0010 | .0015 | .0020 | .0030 | .0040 | .0050 | .0060 | .0080 |
| S | Pure titanium Grade 1, 2, 3, 4, 7, 12 | 36-50 HRC | 200-300 | .0008 | .0012 | .0016 | .0024 | .0032 | .0040 | .0048 | .0064 |
| S | Titanium alloy Ti-6Al-4V | 21-36 HRC | 215-325 | .0006 | .0009 | .0012 | .0018 | .0025 | .0031 | .0037 | .0049 |
| S | Titanium alloy Ti-6Al-4V | 36-50 HRC | 185-275 | .0005 | .0008 | .0010 | .0016 | .0021 | .0026 | .0031 | .0042 |
| S | Cobalt alloy ASTM F562, ASTM F90, ASTM F75, ASTM F799 | 75-98 HRB | 200-300 | .0004 | .0007 | .0009 | .0013 | .0018 | .0022 | .0026 | .0035 |
| S | Cobalt alloy ASTM F562, ASTM F90, ASTM F75, ASTM F799 | 21-36 HRC | 130-190 | .0004 | .0006 | .0008 | .0012 | .0016 | .0020 | .0024 | .0032 |
| S | Cobalt alloy ASTM F562, ASTM F90, ASTM F75, ASTM F799 | 36-50 HRC | 70-110 | .0004 | .0005 | .0007 | .0011 | .0015 | .0018 | .0022 | .0029 |
RPM = SFM × 3.82 ÷ tool diameter | Feed (IPM) = RPM × IPT × number of flutes
These are starting parameters for solid carbide end mills in a rigid setup with good tool holding and coolant or air blast. Adjust for your machine, workholding, tool stick-out and tool path. For application help, contact NEXGEN Tooling at (855) 263-2328.
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