Racing & Metal
Fabrication Equipment
Call Today:
800-221-7223

Products

Log In

E-Mail Address:
Password:

Secure Log In
Password Forgotten?

Recently Viewed

Manufacturer

What's New?

Separator

Tech Article #1 - Tonnage Chart For Mild Steel

by Kevin Smith
Separator

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

This article was published on Tuesday March 20, 2007.
Separator
Separator
Tell a friend
Separator
Tell a friend about this article:  
Separator
Separator
Products related to this article:
Roper Whitney No. 5 JR Hand Punch Kit - 135010050 Hand Punch Tool
Roper Whitney No. 5 JR Hand Punch Kit - 135010050 Hand Punch Tool
Rotex Punch Press 20C-3.50
Rotex Punch Press 20C-3.50
Roper Whitney 131020160 No. 16 Medium Duty Bench Punch
Roper Whitney 131020160 No. 16 Medium Duty Bench Punch
Roper Whitney NO-XX-KIT Hand Punch Kit - No. XX
Roper Whitney NO-XX-KIT Hand Punch Kit - No. XX
Roper Whitney 131012180 No. 218 Deep Throat Bench Punch
Roper Whitney 131012180 No. 218 Deep Throat Bench Punch
Roper Whitney NO-XX-BASE Bench Mounting Base - No. XX Punch
Roper Whitney NO-XX-BASE Bench Mounting Base - No. XX Punch