The purpose of galvanizing is to improve the corrosion resistance of steel pipes. This process enhances the corrosion resistance of the zinc-iron alloy layer formed by the reaction between the steel tube and the plating solution, and the pure zinc layer and the steel tube. This galvanized pipe is used in applications where the system is required to have rust and corrosion resistance.
Customer Question & Answer
|Product Name||Hot Dip Galvanized Steel Pipe/Pre-Galvanized Steel Pipe|
|Length||5.5m, 5.8m, 6m, 11.8m, 12m etc , other length is Available according to demands.|
|Tolerance||Wall Thickness:±0.05MM Length:±6mm Outer Diameter:±0.3MM|
|Shape||Round, Square, Rectangle, Oval, etc.|
|Material||Q195-Q345, 10#-45#,195-Q345, Gr.B-Gr.50, DIN-S235JR, JIS-SS400, JIS-SPHC, BS-040A10|
|Technique||Cold Rolled, Hot Rolled, ERW|
|Surface treatment||Pre-galvanized steel pipe: 20-275g/m2
Hot dipped galvanized steel pipe: 180-500g/m2
|Standard||ASTM, DIN, JIS, BS|
|Payment terms||30% T/T deposit in advance, 70% T/T balance within 5 days after B/L copy, 100% Irrevocable L/C at sight, 100% Irrevocable L/C after receive B/L 30-120 days, O/A|
|Delivery times||Delivered within 30 days after receipt of deposit|
|Package||1. Packed with 8 bundles tightened with metal belt and plastic wrapped if need|
PACKAGE, SHIPPING AND QUALITY TEST
Galvanized Steel Pipe Pakcage:
1. Bundled with narrow steel strips;
2. Your Logo can be printed on the pipes;
3. wrapped with waterproof colth;
4. According to customers’ requirement.
Tianjin Goldensun Brand galvanized square and rectangular steel pipe are widely used for Fence post,Steel Structure, as well as green-
house Tubes. In addition, this type of steel pipe can also be used for Decorative Tube, such as Balcony railing or Handrail.
1. Since the surface of the steel is covered with a layer of pure zinc having a certain thickness and a dense structure, the solution having corrosive properties does not come into contact with the steel. And the zinc layer forms a zinc oxide layer due to exposure to the air, which can effectively prevent the steel substrate from being rusted.
2. The combination of zinc and iron is firm and can be mutually soluble, so its wear resistance is good.
3. After hot-dip galvanizing, the steel structural parts can effectively improve the mechanical properties of the steel matrix, eliminate the stress during the forming and welding of the steel parts, and facilitate the turning of the steel structural parts.
4. The surface of the hot-dip galvanized steel pipe is bright and beautiful.