2.Smooth inner and outer walls
3.Firm galvanized layer
5.Excellent anti-rust and anti-corrosion performance
6.Connected in a slot type to save construction time
7.Mainly used in electric power, fire fighting and other projects
Pre galvanized steel pipe is formed with high quality zinc plate with advanced technology. Pre-galvanized steel tube is the treatment of steel pipe before galvanizing, degreasing, rust removal, phosphating and drying treatment. The galvanization layer of the galvanized pipe is equally and smooth finished. Hot-dip galvanizing, also called hot-dip galvanizing, is a method for obtaining a metal coating by immersing steel components in molten zinc solution. In recent years, with the rapid development of high-voltage power transmission, transportation, and communications, the requirements for protection of iron and steel parts have become higher and higher, and the demand for hot-dip galvanizing has also increased.
Generally, the thickness of the galvanized layer is 5-15 μm, while the hot-dip galvanized layer is generally more than 35 μm, and even up to 200 μm. Hot-dip galvanizing has good covering ability, dense plating and no organic inclusions.
The pre-galvanized steel pipe features high corrosion resistance and is widely used for water transmission, gas, oil and other general low-pressure fluid pipeline pipe, but also hot dip galvanized steel tube could be used as oil industry.
1. Composition and Mechanical properties of commonly used carbon steel alloy steel.
2. Seemless steel pipe, welded pipe, etc.
3. A series international universal series, domestic series.