THE MAINTENANCE CONNECTION, INC. Nitro-Carb Drills
Surface Cutting Speeds For Various Materials Reference the chart below to determine the proper surface speed for use in the following charts. Material
Speed: Ft/Min
Bakelite
90 to 100
Alleghany metal
40 to 50
Manganese copper
20 to 30
Chromalloy
40 to 50
Magnet steel (soft)
40 to 50
Tool steel (RB80)
40 to 60
Tool steel (RB 32 - 34)
40 to 50
Nitralloy 135
50 to 60
Waspalloy
12 to 15
Crucible HY-Tuf (AMS 6418)
15 to 25
Crucible UHS-260
7 to 15
Timken HS 220
15 to 25
Inco Tricent
10 to 20
Vascojet X4 and 1000
7 to 15
Thermold J
7 to 15
Trinidur
12 to 15
Discalloy AMS 5733
12 to 15
Vitallium
10 to 12
Udimet 500
12 to 15
Inconel 700
7 to 15
Rene 41
7 to 15
Armco(17-4 PH and 17-7 PH)
15 to 20
Inconet AMS 5685
10 to 12
SAE 4340, 4360 and AMS 6415
7 to 15
USS Strux - Mod. 98BV40
7 to 15
SAE 4330 - Mod. AMS 6407 H-11 AMS 6485
C U T T I N G T O O L S
15 to 25 7 to 15
A 286 AMS 5736
15 to 20
S-816AMS 5765
12 to 15 P-15