Port and Cavity Tool Speed and Feed Chart

Material BH/Rc Speed (SFM) Cutting Conditions
Uncoated ALTiN+ Infeed Per Flute Ream Infeed Per Flute Spot Face
Cast Iron 130 HB 75-210 200-450 .001-.0025 .0008-.0020
Carbon Steel 18 Rc 125-190
Not Recommended *		 350-400 .001-.0030 .001-.0020
Alloy Steel 20 Rc 70-135
Not Recommended *		 130-350 .001-.0030 .0008-.0020
Tool Steel 25 Rc 75-100
Not Recommended *		 100-220 .001-.0025 .0005-.0020
300 Stainless Steel 150 HB 90-100
Not Recommended *		 100-230 .001-.0020 .0007-.0015
400 Stainless Steel 195 HB 90-135
Not Recommended *		 135-300 .001-.0020 .0005-.0015
High Temp Alloy
(Nickel & Cobalt Base)		 20 Rc 30-125
Not Recommended *		 100-150 .0008-.0010 .0005-.0010
Titanium 25 Rc 50-100 100-140 .001-.0020 .0005-.0010
Aluminum 100 HB 850-1000 800-1500 .002-.0040 .0010-.0030
Brass, Zinc 80 HB 750-950 800-1200 .002-.0040 .0010-.0030

SFM = Surface Feed per Minute
RPM = SFM x 3.82 divided by tool diameter

Starting parameters only. Setup and machine rigidity may affect performance.
*AlTiN+ is highly recommended for steel, stainless steel & high temp alloy.