Min.
Radius for Non-Mandrel Bending on Ineco QB Series To
use the charts below, locate the Tube or Pipe Size on the top
row and the Wall Thickness in the left column. The area where
they cross represents the min. Centerline Radius (CLR mm) of
standard cast tooling. See the chart at the bottom of the page
for the inch equivalent.
Special tooling for specific CLR in inches is available upon
request.
W.T. \ "O.D."
1/4
3/8
1/2
5/8
3/4
7/8
1
1-1/8
1-1/4
1-3/8
1-1/2
1-5/8
1-3/4
1-7/8
2
2-1/8
2-1/4
2-3/8
2-1/2
2-5/8
2-3/4
2-7/8
3
20 ga. (.035")
1.6
1.6
1.6
2.2
2.7
2.7
3.1
3.5
4.4
4.4
6.7
6.7
7.5
8.3
9.0
9.8
9.8
10.2
11.4
12.2
13.4
X
X
18 ga. (.049")
.70
1.6
1.6
2.2
2.7
2.7
3.1
3.5
4.4
4.4
5.9
5.9
6.7
8.3
8.3
8.9
9.4
9.8
9.8
10.6
12.2
13.8
13.8
16 ga. (.065")
.39
.98
.98
2.2
2.2
2.7
2.7
3.1
3.5
4.4
5.3
5.3
6.7
7.5
7.5
8.3
8.3
8.6
8.9
9.8
10.6
13.8
13.8
14 ga. (.083")
.39
.98
.98
1.6
2.2
2.2
2.2
2.7
3.5
3.5
4.4
4.4
6.7
6.7
6.7
7.5
7.5
7.5
8.3
8.9
9.8
13.4
13.4
13 ga. (.095")
.70
.98
.98
1.4
1.6
2.2
2.2
2.2
3.1
3.1
3.5
4.4
5.3
5.3
5.9
5.9
6.7
6.7
7.5
8.3
8.9
12.8
12.8
11 ga. (.120")
X
.70
.98
1.4
1.6
1.6
2.2
2.2
2.7
3.1
3.1
3.5
4.4
4.4
5.3
5.3
5.9
5.9
7.5
8.3
8.9
12.8
12.8
10 ga. (.134")
X
.70
.70
.98
1.6
1.6
2.2
2.2
2.7
3.1
3.1
3.1
3.5
3.5
4.4
5.3
5.3
5.3
6.7
8.3
X
X
X
Round Solid
.39
.70
.98
1.6
2.2
2.7
3.1
4.4
4.4
5.3
5.3
X
X
X
X
X
X
X
X
X
X
X
X
=
Minimum Center Line Radius (inches)
=
Custom Steel Tooling Required
X
=
Not Recommended
Nominal Pipe Size
Outside Diameter
Nominal
Pipe Sizes Wall Thickness / Min Bend Radius (non
mandrel)
Cast Former Sufficient
Special
Steel Tool Required
Sch. 5
Sch. 10
Sch. 40
Sch. 80
Sch. 160
XXS
1/4"
0.540"
N/A
-
.065
R25
.088
R25
.119
R25
N/A
-
N/A
-
3/8"
0.675"
N/A
-
.065
R55
.091
R40
.126
R35
N/A
-
N/A
-
1/2"
0.840"
.065
R68
.083
R55
.109
R55
.147
R40
.187
R40
.294
R40
3/4"
1.050"
.065
R80
.083
R68
.113
R55
.154
R55
.218
R55
.308
R55
1"
1.315"
.065
R90
.109
R68
.133
R68
.179
R68
.250
R68
.358
R68
1-1/4"
1.660"
.065
R135
.109
R90
.140
R80
.191
R80
.250
R80
.382
R80
1-1/2"
1.900"
.065
R190
.109
R112
.145
R90
.200
R80
.281
R80
.400
R80
2"
2.375"
.066
R210
.109
R170
.164
R135
.218
R150
.343
X
.436
X
2-1/2"
2.875"
.083
R350
.120
X
.203
X
.276
X
.375
X
.552
X
Standard cast tooling conversion
(custom tooling available)
