Metal Flexible Hose

Thread Think Steel Tube

(water, gas, steam, tube)

Thin Steel Tube

(electric wire tube)

Metric

G system

Nominal

British system

Outer diameter x wall thickness

Nominal

British system

Outer diameter x wall thickness

Φ 10

1/4

#10

1/4

#12

1/2

12.76x1.60

Φ 12(13)

3/8

#12

3/8

17.00x2.25

#15

5/8

15.87x1.60

Φ 15(16)

1/2

#15

1/2

21.25x2.75

#20

3/4

19.05x1.80

Φ 20(19)

3/4

#20

3/4

26.75x2.75

#25

1

25.40 x1.80

Φ 25

1

#25

1

33.50x3.25

#32

1-1/4

31.75x1.80

Φ 32

1-1/4

#32

1-1/4

42.25x3.25

#40

1-1/2

38.10x1.80

Φ 38(40)

1-1/2

#40

1-1/2

48.00x3.50

#50

2

50.80x2.00

Φ 51(50)

2

#50

2

60.00x3.50

#70

2-1/2

63.50x2.50

Φ64(70)

2-1/2

#70

2-1/2

75.50x3.75

#80

3

76.20x3.20

Φ 75(80)

3

#80

3

88.50x4.00

Φ 100

4

#100

4

114x4.00

Φ 125

5

#125

5

140x4.50

Φ 150

6

#150

6

165.00x4.50