Effective Security Practices for Construction Projects
Technical parameters of galvanized steel pipes
Outer diameter range: DN15- DN600 (or customized according to customer needs).
Wall thickness range: 1mm -10mm.
Length: usually 6m, can also be customized according to needs.
Zinc layer thickness:
Hot dip galvanizing: ≥ 65 μ m (according to GB/T 3091 standard).
Electroplated zinc: 5-15 μ m.
Production process flow
1. Steel pipe pretreatment: Clean the surface of the steel pipe to remove oil stains and rust.
2. Acid washing: Immerse the steel pipe in acid solution to remove the oxide layer.
3. Auxiliary plating treatment: Apply auxiliary plating agent on the surface of the steel pipe to enhance the adhesion of the zinc layer.
4. Hot dip galvanizing: Immerse the steel pipe in molten zinc solution to form a uniform zinc layer.
5. Cooling: Cool and solidify the galvanized steel pipe.
6. Surface treatment: Passivation, polishing, and other treatments are applied to steel pipes.
7. Quality inspection: Ensure product quality through zinc layer thickness testing, pressure testing, etc.
8. Packaging and shipping: Packaging and transportation are carried out according to customer needs.
Material of galvanized steel pipe
Carbon steel: such as Q235 Q195， Suitable for general use.
Low alloy steel: such as Q345, suitable for high-strength requirements.
Other materials: customized according to special requirements.
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