|
Tons of Pressure Required to Punch Mild Steel
Use this chart to make sure that your punch has enough capacity to punch through your material.
|
Round
Hole
Diameter
|
Ga.
|
20
|
18
|
16
|
14
|
12
|
11
|
10
|
3/16"
|
1/4"
|
5/16"
|
3/8"
|
1/2"
|
|
In.
|
.036
|
.048
|
.062
|
.075
|
.105
|
.120
|
.135
|
.188
|
.250
|
.312
|
.375
|
.500
|
|
1/8"
|
|
.4
|
.5
|
.6
|
.7
|
1.0
|
1.2
|
1.3
|
-
|
-
|
-
|
-
|
-
|
|
3/16"
|
|
.5
|
.7
|
.9
|
1.1
|
1.5
|
1.8
|
2.0
|
2.8
|
-
|
-
|
-
|
-
|
|
1/4"
|
|
.7
|
.9
|
1.2
|
1.5
|
2.1
|
2.4
|
2.6
|
3.7
|
4.9
|
-
|
-
|
-
|
|
5/16"
|
|
.9
|
1.2
|
1.5
|
1.8
|
2.6
|
2.9
|
3.3
|
4.6
|
6.1
|
7.8
|
-
|
-
|
|
3/8"
|
|
1.1
|
1.4
|
1.8
|
2.2
|
3.1
|
3.5
|
4.0
|
5.5
|
7.4
|
9.2
|
11.1
|
-
|
|
7/16"
|
|
1.2
|
1.6
|
2.1
|
2.6
|
3.6
|
4.1
|
4.6
|
6.4
|
8.6
|
10.7
|
12.8
|
-
|
|
1/2"
|
|
1.4
|
1.9
|
2.3
|
2.9
|
4.1
|
4.7
|
5.3
|
7.4
|
9.8
|
12.3
|
14.8
|
19.7
|
|
9/16"
|
|
1.6
|
2.1
|
2.6
|
3.3
|
4.6
|
5.1
|
5.9
|
8.3
|
11.1
|
13.9
|
16.5
|
22.0
|
|
5/8"
|
|
1.8
|
2.4
|
2.9
|
3.7
|
5.1
|
5.9
|
6.6
|
9.2
|
12.3
|
15.4
|
18.5
|
24.6
|
|
11/16"
|
|
1.9
|
2.6
|
3.2
|
4.0
|
5.7
|
6.2
|
7.3
|
10.1
|
13.5
|
17.0
|
20.2
|
26.9
|
|
3/4"
|
|
2.1
|
2.8
|
3.5
|
4.4
|
6.2
|
7.1
|
7.9
|
11.0
|
14.7
|
18.5
|
22.1
|
29.5
|
|
13/16"
|
|
2.3
|
3.1
|
3.8
|
4.8
|
6.7
|
7.6
|
8.6
|
12.0
|
16.0
|
20.0
|
23.8
|
31.8
|
|
7/8"
|
|
2.5
|
3.3
|
4.1
|
5.1
|
7.2
|
8.3
|
9.2
|
12.9
|
17.2
|
21.5
|
25.8
|
34.4
|
|
15/16"
|
|
2.6
|
3.5
|
4.4
|
5.5
|
7.7
|
8.8
|
9.9
|
13.8
|
18.4
|
23.0
|
27.5
|
36.8
|
|
1"
|
|
2.8
|
3.8
|
4.7
|
5.9
|
8.2
|
9.4
|
10.6
|
14.8
|
19.7
|
24.6
|
29.5
|
39.4
|
|
1 1/2"
|
|
4.2
|
5.5
|
7.0
|
8.8
|
12.3
|
14.0
|
25.9
|
22.0
|
34.4
|
43.0
|
51.5
|
68.8
|
|
2"
|
|
5.6
|
7.5
|
9.5
|
11.7
|
16.4
|
18.8
|
21.0
|
29.5
|
39.3
|
49.0
|
59.0
|
78.5
|
|
2 1/2"
|
|
7.0
|
9.4
|
11.7
|
14.7
|
20.5
|
23.5
|
26.5
|
36.8
|
49.0
|
61.5
|
73.6
|
98.2
|
|
3"
|
|
8.5
|
11.3
|
14.0
|
17.6
|
24.5
|
28.2
|
31.7
|
44.2
|
60.0
|
76.5
|
88.4
|
118.0
|
|
3 1/2"
|
|
9.9
|
13.0
|
16.5
|
20.5
|
28.8
|
32.7
|
37.0
|
51.5
|
68.7
|
86.0
|
103.0
|
137.0
|
|
4"
|
|
11.3
|
15.0
|
18.8
|
23.5
|
32.8
|
37.6
|
42.2
|
60.0
|
78.5
|
98.0
|
188.0
|
157.0
|
|
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