Spitfire Speed/Control Feed
Spitfire Speed/Feed Chart
Material Machined | 1/32" (.030") Feed Per Revolution | ||||||
Depth of Cut - Inches | |||||||
1/32 | 1/16 | 1/8 | 3/16 | 1/4 | 3/8 | ||
Cutting Speed F.P.M. | |||||||
Steel | SAE 1010-1040 | 250 | 225 | 190 | 170 | 145 | 130 |
SAE 1050-1070 | 175 | 160 | 145 | 135 | 115 | 100 | |
SAE 1080-1095 | 150 | 140 | 120 | 110 | 100 | 90 | |
Free Cutting 11XX | 300 | 270 | 240 | 220 | 185 | 160 | |
Manganese | 125 | 120 | 100 | 95 | 90 | 80 | |
SAE 2015-2515 | 150 | 140 | 125 | 115 | 105 | 90 | |
SAE 3115-3400 | 135 | 125 | 115 | 105 | 95 | 75 | |
SAE 4130-4820 | 150 | 135 | 125 | 115 | 105 | 90 | |
SAE 6120-6145 | 125 | 115 | 100 | 95 | 90 | 80 | |
SAE 71XX-72XX | 120 | 110 | 97 | 90 | 80 | 65 | |
SAE 52XX | 125 | 115 | 100 | 95 | 90 | 85 | |
Cast Steel | 115 - 140 Brinell | 160 | 145 | 140 | 130 | 120 | 110 |
140 - 160 Brinell | 150 | 135 | 125 | 115 | 105 | 95 | |
Cast Iron | 160 - 180 Brinell | 190 | 175 | 165 | 160 | 150 | 140 |
225 - 250 Brinell | 150 | 140 | 130 | 110 | 120 | 110 | |
Aluminum | 1250 | 1100 | 1000 | 950 | 900 | 800 | |
Brass | 500 | 450 | 400 | 360 | 325 | 300 | |
Bronze | Soft | 200 | 175 | 155 | 145 | 125 | 115 |
Hard | 150 | 140 | 125 | 115 | 100 | 90 | |
Stainless Steel | SAE 309X | 225 | 200 | 190 | 175 | 160 | 140 |
