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Machining Group Reference Chart for High Temperature Alloys
MG# Material Description Hardness Grade Selection SFM MPM
17 Monel 400
Monel 500
K Monel
140-300 BHN

CM-1
CG5
ALO

70-130
70-150
200-300
21 - 40
21 - 46
61 - 91
C3
C25
75-150
75-150
23 - 46
23 - 46
18
19
A286
Hastelloy C
Hastelloy Alloy 263
Inconel 600
Inconel 718
Rene 41
Rene 95
Waspalloy
225-363 BHN CM-1 75-130 23 - 40
CG5 75-150 23 - 46
ALO 100-300 30 - 91
C3 75-150 23 - 46
C25 75-150 23- 46
Darker areas are CIRCLE'S primary insert grade recommendations and surface speeds for the material shown. Insert grades shown in the lighter areas, reflect secondary choices. Machining speeds, feeds, and depth of cuts are considered to be "safe" starting conditions.


Machining Group Reference Chart for Titanium Alloys
MG# Material Description Hardness Grade Selection SFM MPM
20 6 AL-4V 300-350 BHN CM-1
CG5
70-130
70-140
21 - 40
70 - 43
Darker areas are CIRCLE'S primary insert grade recommendations and surface speeds for the material shown. Insert grades shown in the lighter areas, reflect secondary choices. Machining speeds, feeds, and depth of cuts are considered to be "safe" starting conditions.

Machining Conditions for Boring High Temperature and Titanium Alloys

Circle

Inch

Metric

Insert

Depth of Cut
(Per Side)

Feed Rate
(IPR)

Depth of Cut
(Per Side)

Feed Rate
(MMPR)

ABD 06
ABD 09
ABD 125
ABD 156
ABC TYPE
0.001" - 0.003"
0.001" - 0.003"
0.001" - 0.006"
0.001" - 0.007"
0.002" - 0.008"
0.002" - 0.0005"
0.002" - 0.0005"
0.002" - 0.0005"
0.003" - 0.001"
0.007" - 0.001"
0,025 - 0,076
0,025 - 0,076
0,025 - 0,152
0,025 - 0,178
0,051 - 0,203
0,051 - 0,013
0,051 - 0,013
0,051 - 0,013
0,076 - 0,025
0,178 - 0,025
BB 187
BB 250
BB 312
0.002" - 0.008"
0.002" - 0.008"
0.002" - 0.008"
0.007" - 0.001"
0.007" - 0.001"
0.007" - 0.001"
0,051 - 0,203
0,051 - 0,203
0,051 - 0,203
0,178 - 0,025
0,178 - 0,051
0,178 - 0,025
CDCD-5
CDCG-5
CDCT-5
0.002" - 0.007"
0.002" - 0.007"
0.003" - 0.009"
0.005" - 0.001"
0.005" - 0.001"
0.007" - 0.002"
0,051 - 0,178
0,051 - 0,178
0,076 - 0,229
0,127 - 0,025
0,127 - 0,025
0,178 - 0,051
CPCA-2
CPCM-2
0.002" - 0.010"
0.005" - 0.010"
0.007" - 0.001"
0.007" - 0.001"
0,051 - 0,254
0,127 - 0,254
0,178 - 0,254
0,178 - 0,254
CPGT-3
CPMT-3
0.002" - 0.050"
0.005" - 0.050"
0.009" - 0.001"
0.009" - 0.005"
0,051 - 1,27
0,127 - 1,27
0,229 - 0,025
0,229 - 0,127
GCCD-6
GCCT-6
0.002" - 0.011"
0.003" - 0.012"
0.005" - 0.001"
0.007" - 0.002"
0,051 - 0,279
0,076 - 0,305
0,127 - 0,025
0,178 - 0,051
GPCD-5
GPCT-5
0.002" - 0.007"
0.003" - 0.009"
0.005" - 0.001"
0.007" - 0.002"
0,051 - 0,178
0,076 - 0,229
0,127 - 0,025
0,178 - 0,051
TDAB-5
TDAT-5
TDCG-5
0.002" - 0.005"
0.002" - 0.007"
0.003" - 0.008"
0.003" - 0.001"
0.004" - 0.001"
0.007" - 0.002"
0,051 - 0,127
0,051 - 0,178
0,076 - 0,203
0,076 - 0,025
0,102 - 0,025
0,178 - 0,051
TPCB-2
TPCG-2
TPCH-2
TPGT-2
TPMT-2
0.002" - 0.015"
0.002" - 0.015"
0.002" - 0.015”
0.002" - 0.005"
0.007" - 0.021"
0.007" - 0.001"
0.007" - 0.001"
0.007" - 0.001"
0.005" - 0.002"
0.010" - 0.005"
0,051 - 1,27
0,051 - 2,286
0,051 - 1,27
0,051 - 1,27
0,178 - 0,533
0,178 - 0,025
0,178 - 0,025
0,178 - 0,025
0,127 - 0,051
0,254 - 0,127
TD-6P
TPCG-32
TPGH-32
TPGT-32
TPMT-32
0.002" - 0.050"
0.002" - 0.090"
0.002" - 0.050"
0.002" - 0.050"
0.008" - 0.032"
0.009" - 0.001"
0.012" - 0.001"
0.009" - 0.001"
0.004" - 0.002"
0.020" - 0.008"
0,051 - 1,27
0,051 - 2,286
0,051 - 1,27
0,051 - 1,27
0,203 - 0,813
0,229 - 0,025
0,305 - 0,025
0,229 - 0,025
0,102 - 0,051
0,508 - 0,203
WPGT-2
WPGT-6
WPMT-2
WPMT-3
WPMT-6
0.002" - 0.012"
0.002" - 0.010"
0.007" - 0.021"
0.005" - 0.050"
0.003" - 0.011"
0.008" - 0.001"
0.009" - 0.001"
0.010" - 0.005"
0.009" - 0.005"
0.009" - 0.002"
0,051 - 0,305
0,051 - 0,254
0,178 - 0,533
0,127 - 1,27
0,076 - 0,279
0,203 - 0,025
0,229 - 0,025
0,254 - 0,127
0,229 - 0,127
0,229 - 0,051

As Depth of Cut increases...Feed Rate ...decreases.
SFM = Surface Footage per Minute. / MPM = Meters Per Minute.
I.P.R. = Inches Per Revolution. / MMPR = Millimeters Per Revolution

Machining Conditions for Boring High Temperature and Titanium Alloys

Circle

Inch

Metric

Insert

Depth of Cut
(Per Side)

Feed Rate
(IPR)

Depth of Cut
(Per Side)

Feed Rate
(MMPR)

ABD 06
ABD 09
ABD 125
ABD 156
ABC TYPE
0.001" - 0.003"
0.001" - 0.003"
0.001" - 0.006"
0.001" - 0.007"
0.002" - 0.008"
0.002" - 0.0005"
0.002" - 0.0005"
0.002" - 0.0005"
0.003" - 0.001"
0.007" - 0.001"
0,025 - 0,076
0,025 - 0,076
0,025 - 0,152
0,025 - 0,178
0,051 - 0,203
0,051 - 0,013
0,051 - 0,013
0,051 - 0,013
0,076 - 0,025
0,178 - 0,025
BB 187
BB 250
BB 312
0.002" - 0.008"
0.002" - 0.008"
0.002" - 0.008"
0.007" - 0.001"
0.007" - 0.001"
0.007" - 0.001"
0,051 - 0,203
0,051 - 0,203
0,051 - 0,203
0,178 - 0,025
0,178 - 0,051
0,178 - 0,025
CDCD-5
CDCG-5
CDCT-5
0.002" - 0.007"
0.002" - 0.007"
0.003" - 0.009"
0.005" - 0.001"
0.005" - 0.001"
0.007" - 0.002"
0,051 - 0,178
0,051 - 0,178
0,076 - 0,229
0,127 - 0,025
0,127 - 0,025
0,178 - 0,051
CPCA-2
CPCM-2
0.002" - 0.010"
0.005" - 0.010"
0.007" - 0.001"
0.007" - 0.001"
0,051 - 0,254
0,127 - 0,254
0,178 - 0,254
0,178 - 0,254
CPGT-3
CPMT-3
0.002" - 0.050"
0.005" - 0.050"
0.009" - 0.001"
0.009" - 0.005"
0,051 - 1,27
0,127 - 1,27
0,229 - 0,025
0,229 - 0,127
GCCD-6
GCCT-6
0.002" - 0.011"
0.003" - 0.012"
0.005" - 0.001"
0.007" - 0.002"
0,051 - 0,279
0,076 - 0,305
0,127 - 0,025
0,178 - 0,051
GPCD-5
GPCT-5
0.002" - 0.007"
0.003" - 0.009"
0.005" - 0.001"
0.007" - 0.002"
0,051 - 0,178
0,076 - 0,229
0,127 - 0,025
0,178 - 0,051
TDAB-5
TDAT-5
TDCG-5
0.002" - 0.005"
0.002" - 0.007"
0.003" - 0.008"
0.003" - 0.001"
0.004" - 0.001"
0.007" - 0.002"
0,051 - 0,127
0,051 - 0,178
0,076 - 0,203
0,076 - 0,025
0,102 - 0,025
0,178 - 0,051
TPCB-2
TPCG-2
TPCH-2
TPGT-2
TPMT-2
0.002" - 0.015"
0.002" - 0.015"
0.002" - 0.015”
0.002" - 0.005"
0.007" - 0.021"
0.007" - 0.001"
0.007" - 0.001"
0.007" - 0.001"
0.005" - 0.002"
0.010" - 0.005"
0,051 - 1,27
0,051 - 2,286
0,051 - 1,27
0,051 - 1,27
0,178 - 0,533
0,178 - 0,025
0,178 - 0,025
0,178 - 0,025
0,127 - 0,051
0,254 - 0,127
TD-6P
TPCG-32
TPGH-32
TPGT-32
TPMT-32
0.002" - 0.050"
0.002" - 0.090"
0.002" - 0.050"
0.002" - 0.050"
0.008" - 0.032"
0.009" - 0.001"
0.012" - 0.001"
0.009" - 0.001"
0.004" - 0.002"
0.020" - 0.008"
0,051 - 1,27
0,051 - 2,286
0,051 - 1,27
0,051 - 1,27
0,203 - 0,813
0,229 - 0,025
0,305 - 0,025
0,229 - 0,025
0,102 - 0,051
0,508 - 0,203
WPGT-2
WPGT-6
WPMT-2
WPMT-3
WPMT-6
0.002" - 0.012"
0.002" - 0.010"
0.007" - 0.021"
0.005" - 0.050"
0.003" - 0.011"
0.008" - 0.001"
0.009" - 0.001"
0.010" - 0.005"
0.009" - 0.005"
0.009" - 0.002"
0,051 - 0,305
0,051 - 0,254
0,178 - 0,533
0,127 - 1,27
0,076 - 0,279
0,203 - 0,025
0,229 - 0,025
0,254 - 0,127
0,229 - 0,127
0,229 - 0,051

As Depth of Cut increases...Feed Rate ...decreases.
SFM = Surface Footage per Minute. / MPM = Meters Per Minute.
I.P.R. = Inches Per Revolution. / MMPR = Millimeters Per Revolution


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