BS1387 hot-dip galvanized steel pipe is made of straight seam steel pipe or seamless steel pipe as the base pipe. The steel pipe is compounded with plastic through a heated spraying process. The outer surface is galvanized and the inner wall is plastic-coated. It has corrosion resistance and wear resistance. of composite pipes. The principle is to use galvanized steel pipe as the base pipe, and the inner wall is coated with high adhesion, anti-corrosion, food-grade hygienic polyethylene powder coating or epoxy resin coating. It is basically a water supply galvanized internally coated composite steel pipe made using pre-treatment, preheating, internal coating, leveling and post-processing processes. It is an upgraded product of traditional galvanized pipes.
BS1387 hot dip galvanized pipe is available in a wide range of sizes, lengths and thicknesses, making it suitable for a variety of different applications. This type of pipe is often used in water and gas systems, as well as other applications where corrosion protection is required, such as scaffolding and fencing. In addition, it is also widely used in the production of products such as furniture, auto parts, and agricultural machinery.
BS1387 Hot Dip Galvanized Steel Pipe Chemical Composition Table
|
Chemical composition and mechanical properties at room temperature |
||||||
|
Chemical composition (Ladle) |
Mechanical properties at room temperature |
|||||
|
C Max. |
Mn Max. |
P Max. |
S Max. |
Tensile Strength, Rm |
Yield Strength, Re (min.) |
Elongation on Gauge Length L0 = 5.65 S0 A (min.) |
|
% |
% |
% |
% |
N/mm2 |
N/mm2 |
% |
|
0.2 |
1.2 |
0.045 |
0.045 |
320 to 460 |
195 |
20 |
BS1387 Hot-dip Galvanized Steel Pipe Size Chart
|
Nominal bore |
Outside diameter |
Thickness |
Mass |
||||||
|
Light |
Medium / Heavy |
Light |
Medium |
Heavy |
Light |
Medium |
Heavy |
||
|
in |
mm |
mm |
mm |
mm |
mm |
mm |
kg/m |
kg/m |
kg/m |
|
1/4 |
8 |
13.60 |
13.90 |
1.80 |
2.30 |
2.90 |
0.515 |
0.641 |
0.765 |
|
3/8 |
10 |
17.10 |
17.40 |
1.80 |
2.30 |
2.90 |
0.670 |
0.839 |
1.020 |
|
1/2 |
15 |
21.40 |
21.70 |
2.00 |
2.60 |
3.20 |
0.947 |
1.210 |
1.440 |
|
3/4 |
20 |
26.90 |
27.20 |
2.30 |
2.60 |
3.20 |
1.380 |
1.560 |
1.870 |
|
1 |
25 |
33.80 |
34.20 |
2.60 |
3.20 |
4.00 |
1.980 |
2.410 |
2.940 |
|
1 1/4 |
32 |
42.50 |
42.90 |
2.60 |
3.20 |
4.00 |
2.540 |
3.100 |
3.800 |
|
1 1/2 |
40 |
48.40 |
48.80 |
2.90 |
3.20 |
4.00 |
3.230 |
3.570 |
4.380 |
|
2 |
50 |
60.20 |
60.80 |
2.90 |
3.60 |
4.50 |
4.080 |
5.030 |
6.190 |
|
2 1/2 |
65 |
76.00 |
76.60 |
3.20 |
3.60 |
4.50 |
5.710 |
6.430 |
7.930 |
|
3 |
80 |
88.70 |
89.50 |
3.20 |
4.00 |
5.00 |
6.720 |
8.370 |
10.300 |
|
4 |
100 |
113.90 |
114.90 |
3.60 |
4.50 |
5.40 |
9.750 |
12.200 |
14.500 |
|
5 |
125 |
|
140.60 |
|
5.00 |
5.40 |
|
16.600 |
17.900 |
|
6 |
150 |
|
166.10 |
|
5.00 |
5.40 |
|
19.700 |
21.300 |
BS1387 Hot-dip Galvanized Steel Pipe Production Process
Surface treatments, such as chemical cleaning or sanding, are often performed to ensure a smooth and clean surface.
The steel pipes are degreased to remove surface grease and then soaked in a pickling tank to remove oxides and other surface dirt. Before galvanizing, pre-treatment is usually carried out. This may include surface activation or coating with a special chemical to improve the adhesion of the galvanizing. The steel pipe is put into the molten zinc liquid for galvanizing treatment. There are usually two methods: hot-dip galvanizing and electro-galvanizing.
Hot-dip galvanizing: The steel pipe is immersed in molten zinc heated to a certain temperature, causing the zinc to react with the steel surface to form a protective coating.
Electro-galvanizing: Through electrochemical methods, zinc is deposited on the surface of the steel pipe by electric current to form a protective coating. This method is usually used for galvanizing with lighter corrosion protection requirements or small structures.
Cooling and solidification: After galvanizing is completed, the steel pipe will go through a cooling process, allowing the zinc coating to solidify and adhere to the surface of the steel pipe.
Gnee Company Team
FAQ
Q. What are the advantages of your company?
A. Our advanced steel production equipment, years of experience in metal production and sales, and perfect after-sales service system make us the best choice for many customers.
Q. Do you provide custom made Products service?
A. Yes if you have your own design, we can produce according to your specification and drawing.
Q. Can you provide samples?
A. Yes, free samples are available for regular sizes, but buyers need to pay the shipping cost.
Hot Tags: bs1387 hot galvanized steel pipe, China bs1387 hot galvanized steel pipe manufacturers, suppliers, factory
