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Galvanized steel pipes are divided into cold-galvanized pipes and hot-dip galvanized pipes. According to the shape, they are divided into galvanized round pipes and galvanized square rectangular pipes. Both the substrate and the coating are combined. Hot-dip galvanizing is to pickle the steel pipe first. In order to remove the iron oxide on the surface of the steel pipe, after pickling, it is cleaned by ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to hot-dip coating tank. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life.
Galvanized pipe, also known as galvanized steel pipe, is divided into two types: hot-dip galvanizing and electro-galvanizing. Hot-dip galvanizing has a thick zinc layer and has the advantages of uniform coating, strong adhesion, and long service life. The cost of electro-galvanized pipes is low, the surface is not very smooth, and its corrosion resistance is much worse than that of hot-dip galvanized pipes.
Galvanized round pipe is a common building material, mainly used in indoor and outdoor pipes, electrical wiring, ventilation pipes and mechanical structures and other fields. It has the characteristics of corrosion resistance, wear resistance, high strength, easy processing and installation, so it is widely used in various fields. In the field of construction, galvanized round pipes are mainly used for water and electricity pipes, HVAC systems and fire pipes, etc.; in terms of mechanical structures, they can be used as machine parts, auto parts and steel structures; in terms of furniture manufacturing, they can be used for manufacturing Table chairs and bed frames etc. In short, galvanized round pipes are very versatile and can meet the needs of various fields.
DN |
outer diameter |
Ordinary steel pipe |
Thickened steel pipe |
|||||
MM |
MM |
Deviation |
Thickness |
welded pipe (kg/m) |
Galvanized pipe (kg/m) |
Thickness |
welded pipe (kg/m) |
Galvanized pipe (kg/m) |
MM |
Deviation |
MM |
Deviation |
|||||
6 |
10.2 |
2.0 |
0.40 |
0.4256 |
2.5 |
|||
8 |
13.5 |
2.3 |
+12% |
0.62 |
0.64 |
2.75 |
+12% |
|
10 |
17 |
2.3 |
0.82 |
0.84 |
2.75 |
0.97 |
1.00 |
|
15 |
21.3 |
±0.5mm |
2.8 |
1.26 |
1.30 |
3.25 |
1.45 |
1.49 |
20 |
26.8 |
2.8 |
1.63 |
1.68 |
3.50 |
2.01 |
2.07 |
|
25 |
33.5 |
3.3 |
2.42 |
2.49 |
4.00 |
2.91 |
3.00 |
|
32 |
42.3 |
3.3 |
3.13 |
3.22 |
4.00 |
3.78 |
3.89 |
|
40 |
48 |
3.5 |
3.84 |
3.96 |
4.25 |
4.58 |
4.72 |
|
50 |
60 |
±1% |
3.5 |
4.88 |
5.03 |
4.50 |
6.16 |
6.34 |
65 |
75.5 |
3.8 |
6.64 |
6.84 |
4.50 |
7.88 |
8.12 |
|
80 |
88.5 |
4.0 |
8.34 |
8.59 |
4.75 |
9.81 |
10.10 |
|
100 |
114 |
4.0 |
10.85 |
11.18 |
5.00 |
13.44 |
13.84 |
|
125 |
140 |
4.5 |
15.04 |
15.49 |
5.50 |
18.24 |
18.79 |
|
150 |
165 |
4.5 |
17.81 |
18.34 |
5.50 |
21.63 |
22.28 |
Shandong Anli Metal Co., Ltd. is a leading comprehensive enterprise integrating various metal products. Our portfolio includes hot-rolled steel coils, cold-rolled steel coils, galvanized steel coils, color-coated steel coils, steel sections, steel pipes, heat exchange pipes, automobile exhaust pipes, anchor rods, steel wires, and metal mesh. Additionally, we offer stainless steel, aluminum, copper, and metal raw materials such as billets, aluminum ingots, zinc ingots, magnesium ingots, and lead ingots.
With five production and sales bases strategically located in Binzhou, Liaocheng, Wuxi, Tianjin, Jinan, and Tai'an, we boast over 100 production lines. Our group company has imported the most advanced technology from Germany, Japan, Belgium, the United States, and the United Kingdom for iron-smelting and steel processing. Equipped with a complete automatic system, we have become one of the largest and most advanced professional manufacturers in China.
We possess four nationally recognized laboratories, two technical engineering centers, and five corporate technology centers, ensuring the highest quality standards. Our products are exported to more than 50 countries and regions worldwide, including North America, South America, Europe, the Middle East, Russia, Africa, and others.
Company Philosophy:
• Quality First: We adhere strictly to production standards during production and inspection.
• Price Advantage: We offer discounts based on real market prices.
• Transaction Security: Customer funds are always protected.
• After-Sales Guarantee: We treat customer problems as our own.
• Long-Term Cooperation: Our quality assurance, price advantage, and sincere service ensure lasting partnerships.
Shandong Anli Metal, with quality as the foundation and technology as the leader, sincerely invites friends from all walks of life to join us creating a brilliant chapter in the metal manufacturing industry!
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