Galvanized Square Tube

Description

Galvanized square tube is a steel tube with a square cross-section, and the surface is galvanized to improve its corrosion resistance and service life. The galvanized layer can effectively isolate air and moisture and prevent the steel tube from rusting.
Classification
According to the galvanizing process:
Hot-dip galvanized square tube: The square tube is immersed in molten zinc liquid to form a thicker zinc layer with strong corrosion resistance.
Electro-galvanized square tube: The square tube is galvanized by electrolysis, and the zinc layer is thinner, which is suitable for occasions with high appearance requirements.
According to the purpose:
Structural galvanized square tube: used for structures such as buildings and bridges.
Decorative galvanized square tube: used for indoor and outdoor decoration, furniture, etc.
Mechanical galvanized square tube: used for machinery manufacturing and parts.
According to the material:
Ordinary carbon steel galvanized square tube: commonly used material with low cost.
Low alloy high-strength steel galvanized square tube: high strength, used in special occasions.
Process
Hot-dip galvanizing process:
Pretreatment: pickling to remove surface oxides.
Plating aid: immerse in plating aid to prevent oxidation.
Hot-dip galvanizing: immerse in molten zinc liquid to form a zinc layer.
Cooling: water cooling or natural cooling.
Electro-galvanizing process:
Pretreatment: cleaning, pickling, activation.
Electroplating: zinc is plated on the surface of the square tube by electrolysis.
Post-treatment: cleaning, drying, passivation.
Features
Corrosion resistance: The zinc layer effectively prevents corrosion of the square tube.
Long life: The galvanized layer extends the service life of the square tube.
Beautiful appearance: The galvanized layer is bright and suitable for decorative purposes.
High strength: The square cross-section provides higher structural strength.
Low cost: Compared with stainless steel, the cost of galvanized square tubes is lower.
Uses
Construction: used for structural support, frames, scaffolding, etc.
Decoration: used for indoor and outdoor decoration, railings, furniture, etc.
Machinery manufacturing: used for mechanical structural parts, parts, etc.
Transportation: used for bridges, guardrails, traffic signs, etc.
Agriculture: used for greenhouse structures, irrigation systems, etc.
Electricity: used for cable protection pipes, transmission towers, etc.
Galvanized square tubes have enhanced corrosion resistance through the galvanizing process and are widely used in construction, decoration, machinery manufacturing and other fields. They have the advantages of low cost, long life and high strength.