Z-Carb™-AP Speed and Feed Recommendations – Fractional
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Cutting Diameter
Slot Milling - 100% Rw
Material Type
Bhn
1/8
3/16
1/4
5/16
3/8
7/16
1/2
9/16
5/8
3/4
1
rpm in/min rpm in/min rpm in/min rpm in/min rpm in/min rpm in/min rpm in/min rpm in/min rpm in/min rpm in/min rpm in/min Low Carbon Steels
~175 16,350
13
10,930
22
8,170
26
6,550
32
5,450
42
4,680
42
4,090
41
3,640
39
3,270
36
2,720
34
2,040
28
Low Carbon Steels
~275 13,450
11
8,990
19
6,720
22
5,390
26
4,480
34
3,850
34
3,360
33
2,990
32
2,690
30
2,240
28
1,680
23
Med Alloy Steels
~275 11,310
9
7,560
15
5,650
19
4,530
22
3,770
29
3,230
29
2,830
28
2,510
26
2,260
25
1,880
23
1,410
19
Mold And Die Steels
5,810
5
3,880
9
2,900
9
2,330
11
1,940
14
1,660
14
1,450
14
1,290
13
1,160
12
970
12
730
10
~200 15,280
12
10,210
21
7,640
25
6,120
30
5,090
39
4,370
39
3,820
37
3,400
35
3,060
34
2,550
32
1,910
26
Cast Iron - Ductile
~300
7,790
6
5,210
10
3,900
12
3,120
15
2,600
19
2,230
19
1,950
19
1,730
18
1,560
17
1,300
15
970
12
Cast Iron - Malleable
~300
4,890
5
3,270
7
2,440
8
1,960
9
1,630
12
1,400
12
1,220
12
1,090
11
980
10
810
10
610
8
Stainless 300 Series
~275
9,630
8
6,430
13
4,810
15
3,860
18
3,210
18
2,750
18
2,410
18
2,140
18
1,930
18
1,600
17
1,200
13
Stainless 400 Series
~185 13,450
11
8,990
19
6,720
24
5,390
28
4,480
28
3,850
28
3,360
28
2,990
28
2,690
28
2,240
24
1,680
20
Stainless Ph Series
~325
8,100
6
5,410
11
4,050
13
3,240
15
2,700
15
2,320
15
2,020
15
1,800
15
1,620
15
1,350
13
1,010
11
Titanium Alloys
~295
9,170
9
6,130
14
4,580
16
3,670
18
3,060
18
2,620
18
2,290
18
2,040
18
1,830
18
1,530
16
1,150
13
High Temp. Alloys
~300
2,440
2
1,630
3
1,220
3
980
4
810
4
700
4
610
4
540
4
490
4
410
4
310
3
Cast Iron - Gray
~275
Cutting Diameter
Profile Milling - 40% Rw
Material Type
Bhn
1/8
3/16
1/4
5/16
3/8
7/16
1/2
9/16
5/8
3/4
1
rpm in/min rpm in/min rpm in/min rpm in/min rpm in/min rpm in/min rpm in/min rpm in/min rpm in/min rpm in/min rpm in/min Low Carbon Steels
~175 19,560
16
13,070
26
9,780
31
7,840
38
6,520
50
5,590
50
4,890
49
4,350
46
3,910
43
3,260
40
2,440
33
Low Carbon Steels
~275 16,040
13
10,720
23
8,020
26
6,430
31
5,350
41
4,590
41
4,010
40
3,570
38
3,210
36
2,670
34
2,010
28
~275 13,140
11
8,780
18
6,570
23
5,260
26
4,380
35
3,760
35
3,290
34
2,920
31
2,630
30
2,190
28
1,640
23
~275
6,420
6
4,290
10
3,210
10
2,570
13
2,140
16
1,840
16
1,600
16
1,430
15
1,280
14
1,070
14
800
12
Med Alloy Steels Mold And Die Steels Cast Iron - Gray
~200 17,720
14
11,850
25
8,860
29
7,100
35
5,910
46
5,070
46
4,430
44
3,940
41
3,540
40
2,950
38
2,220
31
Cast Iron - Ductile
~300
8,710
7
5,820
11
4,350
13
3,490
17
2,900
21
2,490
21
2,180
21
1,940
20
1,740
19
1,450
17
1,090
13
Cast Iron - Malleable
~300
5,500
6
3,680
9
2,750
10
2,200
11
1,830
15
1,570
15
1,380
15
1,220
13
1,100
12
920
12
690
10
Stainless 300 Series
~275 10,240
9
6,840
14
5,120
16
4,100
20
3,410
20
2,930
20
2,560
20
2,280
20
2,050
20
1,710
19
1,280
14
Stainless 400 Series
~185 15,740
13
10,520
23
7,870
29
6,310
34
5,250
34
4,500
34
3,930
34
3,500
34
3,150
34
2,620
29
1,970
24
Stainless Ph Series
~325
Titanium Alloys High Temp. Alloys
8,710
7
5,820
13
4,350
15
3,490
17
2,900
17
2,490
17
2,180
17
1,940
17
1,740
17
1,450
15
1,090
13
~295 10,080
10
6,740
16
5,040
18
4,040
20
3,360
20
2,880
20
2,520
20
2,240
20
2,020
20
1,680
18
1,260
14
~300
2
1,840
4
1,380
4
1,100
5
920
5
790
5
690
5
610
5
550
5
460
5
340
4
2,750
Cutting Diameter
Profile Milling - 10% Rw
Material Type
Bhn
1/8
3/16
1/4
5/16
3/8
7/16
1/2
9/16
5/8
3/4
1
rpm in/min rpm in/min rpm in/min rpm in/min rpm in/min rpm in/min rpm in/min rpm in/min rpm in/min rpm in/min rpm in/min Low Carbon Steels
~175 21,240
22
14,200
37
10,620
43
8,510
53
7,080
70
6,080
70
5,310
68
4,720
65
4,250
60
3,540
57
2,650
47
Low Carbon Steels
~275 17,420
20
11,640
34
8,710
40
6,980
47
5,810
61
4,980
61
4,350
59
3,870
58
3,480
54
2,900
50
2,180
41
Med Alloy Steels
~275 14,060
15
9,400
24
7,030
31
5,630
36
4,690
47
4,020
47
3,510
45
3,130
42
2,810
41
2,340
37
1,760
31
Mold And Die Steels
7,030
8
4,700
15
3,510
15
2,820
18
2,340
23
2,010
23
1,760
23
1,560
21
1,410
19
1,170
19
880
16
~200 18,340
19
12,260
33
9,170
40
7,350
48
6,110
62
5,240
62
4,580
59
4,080
56
3,670
54
3,060
51
2,290
41
Cast Iron - Ductile
~300
9,320
9
6,230
16
4,660
19
3,730
24
3,110
30
2,670
30
2,330
30
2,070
28
1,860
27
1,550
24
1,170
19
Cast Iron - Malleable
~300
5,810
8
3,880
12
2,900
13
2,330
15
1,940
20
1,660
20
1,450
20
1,290
18
1,160
17
970
17
730
13
Cast Iron - Gray
~275
Stainless 300 Series
~275 10,850
12
7,250
19
5,420
22
4,350
27
3,620
27
3,100
27
2,710
27
2,410
27
2,170
27
1,810
25
1,360
19
Stainless 400 Series
~185 16,660
18
11,130
31
8,330
39
6,670
46
5,550
46
4,760
46
4,160
46
3,700
46
3,330
46
2,780
39
2,080
33
Stainless Ph Series
~325
9,020
9
6,030
16
4,510
19
3,610
22
3,010
22
2,580
22
2,250
22
2,010
22
1,800
22
1,500
19
1,130
16
~295 10,390
14
6,950
21
5,200
24
4,160
27
3,460
27
2,970
27
2,600
27
2,310
27
2,080
27
1,730
24
1,300
19
~300
3
2,040
5
1,530
5
1,220
7
1,020
7
870
7
760
7
680
7
610
7
510
7
380
5
Titanium Alloys High Temp. Alloys
3,060
Profiling: Axial Depth (Ad) 1.5 x Diameter (max.)
224
Slotting: Axial Depth (Ad) 1 x Diameter (max.)