Surface speeds and feeds for HSS tools.

Material HSS
Rake
angle		 Turn
Bore
Part off		 Form Drill Screw
Die
Tap		 Screw cut
single point		 Mill
<--------------Surface Speed ft/minute------------->
Malleable Iron 5° 100 80 67 18 40 70-85
Cast Iron 5° 130 110 85 25 45 70-110
Magnesium Alloys 20°-30° 550 420 280 55 95 300-1400
Aluminium Light Alloys 15°-25° 400 310 250 50 90 300-1400
Soft Brass 0°-5° 280 220 180 50 90 200-300
Hard Brass 0°-5° 230 180 140 40 75 140-200
Low carbon steel
(up to 0.3% C) 		8°-10° 200 160 110 30 50 110-140
Med carbon steel (0.3-0.6% C) &
Phosphor bronze 		5° 150 120 90 25 50 80-110
40-60 ton alloy steel 5° 125 95 75 20 40 55-75
High carbon Steel (> 0.6% C) 5° 125 95 75 20 40 55-75
Nickel chrome Steel (100 ton) 5° 100 80 65 20 35 45-60
Stainless Steel 5° 85 65 60 18 30 22-32