Round Tube Information

Minimum Achievable “Centerline Radius” with Standard Tooling

Wall Thickness

Tube
Size

.035

.049

.065

.083

.095

.109

.120

.134

20 Ga.

18 Ga.

16 Ga.

14 Ga.

13 Ga.

12 Ga.

11 Ga.

10 Ga.

1/4″

1.4

1.4

1.4

1.4

1.4

1.4

.78

.78

3/8″

1.4

1.4

.78

.78

.78

.78

.78

.78

1/2″

1.4

1.4

1

1

1

1

1

1

5/8″

1.8

1.8

1.8

1.4

1.4

1.4

1.4

1.4

3/4″

2.6

2.6

2.6

1.8

1.8

1.8

1.8

1.8

7/8″

2.6

2.6

2.2

1.8

1.8

1.8

1.8

1.8

1″

3.2

3.2

2.6

2.2

2.2

2.2

2.2

2.2

1-1/8″

3.2

3.2

3.2

2.6

2.2

2.2

2.2

2.2

1-1/4″

4.4

4.4

4.4

3.2

2.6

2.6

2.6

2.6

1-3/8″

4.4

4.4

4.4

3.2

3.2

3.2

3.2

3.2

1-1/2″

7.5

5.9

5.1

3.9

3.9

3.5

3.5

3.5

1-5/8″

7.5

5.9

5.1

3.9

3.9

3.5

3.5

3.5

1-3/4″

   

6.7

6.7

5.1

3.9

3.9

3.9

1-7/8″

   

7.5

5.9

5.1

3.9

3.9

3.9

2″

   

7.5

7.5

5.9

4.7

4.7

4.7

2-1/8″

   

7.5

7.5

5.9

5.1

5.1

4.7

2-1/4″

     

7.5

5.9

5.1

5.1

5.1

2-3/8″

     

7.5

5.9

5.1

5.1

5.1

2-1/2″

       

11.8

10.2

9.8

 

3″

       

11.8

10.2

9.8

 

Reference catalog for individual machine capacities

Bending Terminology

Material Required for a Bend

Radius x Degree of Bend x .0175 = Length
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