pre galvanized steel pipe

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Galvanized steel pipe

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pre galvanized steel pipe

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Galvanized steel pipe details:

Size:	21.3 - 610mm
Thickness:	1.0 - 25mm
Length:	1 - 12 meters
Standard:	BS, EN, GB, AISI, ASTM, DIN, JIS
Material:	Q195, Q235, Q345, GR.A/B, S235/S355, ASTM A53, ASTM A36, ASTM A500, etc
Shape:	round, square, rectangular.
Packing:	In bundles or customized.

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The difference between pre-galvanizing and hot-dip galvanizing：

In the production process of steel pipes, pre-galvanizing and hot-dip galvanizing are two common galvanizing processes. Each of them has its unique characteristics and application scenarios.

Pre-galvanizing is the process of galvanizing plates before the production of steel pipes and then processing them into shape. Therefore, its appearance is silver-gray and smooth, but its anti-corrosion ability is relatively limited, making it suitable for occasions where surface smoothness is required.

Hot-dip galvanizing, on the other hand, is achieved after the steel pipe is formed by immersing it in molten zinc. Its appearance is silvery white and rough, but it has strong anti-corrosion ability, good corrosion resistance, long service life and is more suitable for harsh environments.

Therefore, when choosing galvanized steel pipes, a comprehensive consideration should be made based on the specific usage environment, anti-corrosion requirements and surface finish demands to ensure the rationality of material selection.