Pre-galvanized steel pipe

We can produce and supply to you various Pre- according to international standard. Pre-galvanized steel pipes are used in the following fields, steel structure, build structure, guard rail, fence, metal furniture etc. our products are exported to about 50 countries in the world, we get a lot of recognition from many customers since our good quality and service.

British Standard (BS1387-85) Thin thickness pipe specification
Outside Diameter (mm) Weight of Black Pipe (kg/m)
Nominal Size (DN) Screw Identifiers Maximum Minimum Thickness Plain end pipe Threaded and With Coupler
15 1/2 21.4 21.0 2.0 0.947 0.956
20 3/4 26.9 26.4 2.3 1.38 1.39
25 1 33.8 33.2 2.6 1.98 2.00
32 11/4 42.5 41.9 2.6 2.54 2.57
40 11/2 48.4 47.8 2.9 3.23 3.27
50 2 60.2 59.6 2.9 4.08 4.15
65 21/2 76.0 75.2 3.2 5.71 5.83
80 3 88.7 87.9 3.2 6.72 6.89
100 4 113.9 113.0 3.6 9.75 10.0

Normal steel pipe size
Outside Diameter (mm) Weight of Black Pipe (kg/m)
Nominal Size ( DN) Screw Identifiers Maximum Minimum Thickness Plain end pipe Threaded and With Coupler
15 1/2 21.7 21.1 2.6 1.21 1.22
20 3/4 27.2 26.6 2.6 1.56 1.57
25 1 34.2 33.4 3.2 2.41 2.43
32 11/4 42.9 42.1 3.2 3.10 3.13
40 11/2 48.8 48.0 3.2 3.57 3.61
50 2 60.8 59.8 3.6 5.03 5.10
65 21/2 76.6 75.4 3.6 6.43 6.55
80 3 89.5 88.1 4.0 8.37 8.54
100 4 114.9 113.3 4.5 12.2 12.5
125 5 140.6 138.7 5.0 16.6 17.1
150 6 166.1 164.1 5.0 19.7 20.3

Our products are widely used in agriculture, construction, machinery and other fields.