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SUGGESTED FEEDS AND SPEEDS FOR SPECIAL MATERIALS
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Material
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Speed In Feet Per Minute
|
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Aluminum and its Alloys
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200-300
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Brass and Bronze (Ordinary)
|
150-300
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Bronze (High Tensile)
|
70-150
|
|
Die Castings (Zinc Base)
|
300-400
|
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Iron-Cast (Soft)
Cast (Medium Hard)
Hard Chilled
Malleable
|
75-125
50-100
10-20
80-90
|
|
Magnesium and its Alloys
|
250-400
|
|
Monel Metal or High-Nickel Steel
|
30-50
|
|
Plastics or Similar Materials(Bakelite)
|
100-300
|
|
Steel-Mild .2 Carbon to .3 Carbon
Steel .4 Carbon to .5 Carbon
Tool 1.2 Carbon
Forgings
Alloy-300 to 400 Brinell
|
80-110
70-80
50-60
40-50
20-30
|
|
Steel-High Tensile
35-45 Rockwell C
40-45 Rockwell C
45-50 Rockwell C
50-55 Rockwell C
|
30-40
25-35
15-25
7-15
|
|
Stainless Steel
Free Machining Grades
Work Hardening Grades
|
30-80
15-50
|
|
Titanium Alloy Sheet
|
50-60
|
|
Titanium Alloy
Ti-75A (Commercially Pure)
RS-120
Ti-150A
Ti-140A
RC-130B
MST 6A1-4 Va.
MST 3A1-5 Cr.
|
50-60
40-60
40-50
30-40
30-40
20-35
10-20
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|
Wood
|
300-400
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