BSB-1 黑白鐵管

Standard Weight Formula

(Diameter - thickness) x Thickness X0.025 = Kg/m

Size

Specification

Inches

Maximum outer diameter

Thickness

3/8 "

18.0

2.60

1/2 "

21.8

2.60

3/4 "

27.3

2.80

1 "

34.2

3.20

11/4 "

42.9

3.60

11/2 "

48.8

4.00

2 "

60.8

4.00

21/2 "

76.6

4.50

3 "

89.5

4.50

31/2 "

102.1

4.50

4 "

115.0

4.50

5 "

140.6

4.50

6 "

166.1

4.50

8 "

216.3

6.00

10 "

273.0

5.50

12 "

323.8

5.50

14 "

355.0

6.00

Diameter of 16 "to 20" X25.4mm

BSB-2 黑白鐵管

Standard Weight Formula

(Diameter - thickness) x Thickness X0.025 = Kg/m

Size

Specification

Inches

Maximum outer diameter

Thickness

1/2 "

21.8

2.30

3/4 "

27.3

2.60

1 "

34.2

2.80

11/4 "

42.9

3.20

11/2"

48.8

3.60

2 "

60.8

3.60

21/2 "

76.6

4.00

3 "

89.5

4.00

31/2 "

102.1

4.00

4"

115.0

4.00

5 "

140.5

4.00

6 "

166.1

4.00

8 "

218.5

5.50