| Place of Origin: | Liaocheng City, Shandong Province, China |
| Brand Name: | Shandong Liaocheng Jinzheng Steel pipe Co., LTD |
| Model Number: | Galvanized square pipe |
| Certification: | ISO/ SGS |
| Minimum Order Quantity: | 5 TON |
| Price: | 580$/TON |
| Packaging Details: | Export standard package |
| Delivery Time: | 7-10days |
| Payment Terms: | TT or LC |
| Supply Ability: | 700ton/week |
Description：
Galvanized square tube is a type of hollow square section steel pipe made of hot-rolled or cold-rolled galvanized strip steel or galvanized coil steel, which is formed by cold bending processing and then high-frequency welding, or a galvanized square tube made by hot-dip galvanizing processing of pre made cold-formed hollow steel pipes.
Galvanized square pipes are divided into hot-dip galvanized square pipes and cold galvanized square pipes in terms of production technology.
Hot-dip galvanized square tube
Hot dip galvanized square tube: It is a type of square tube formed by welding steel plates or steel strips after being rolled and formed, and then placed in a hot-dip galvanized pool for a series of chemical reactions to form a square tube.
Cold galvanized square pipe
And cold galvanized square pipes use the principle of cold galvanizing on the square pipes used to make them have anti-corrosion performance. Different from hot-dip galvanizing, cold dip galvanizing coatings mainly use electrochemical principles for corrosion prevention
Differences between hot and cold galvanizing
Galvanized square pipes can be divided into two categories: hot-dip galvanized square pipes and electroplated galvanized square pipes. Hot dip galvanized square pipes can be processed by wet method, dry method, lead zinc method, oxidation-reduction method, etc. The main difference between different hot-dip galvanizing methods lies in the method used to activate the surface of the steel pipe and improve the quality of galvanizing after acid immersion cleaning. Dry and redox methods are mainly used in current production. The surface of the zinc layer of electroplating is very smooth, dense, and the structure is uniform; Has good mechanical properties and corrosion resistance; Zinc consumption is 60% to 75% lower than hot-dip galvanizing. Electrogalvanizing has a certain degree of technical complexity, but it is necessary to use this method for single-sided coatings, double-sided coatings with different thicknesses of inner and outer surface coatings, and thin-walled pipe galvanizing
Specifications：
|
Square tube specifications （mm） |
Rectangular tube specifications （mm） |
||
| 16×16×0.4～1.5 | 380×380×8.0～14.0 | 10×20×0.6～1.5 | 250×150×6～12.0 |
| 18×18×0.4～1.5 | 400×400×8.0～14.0 | 14×21×0.6～1.5 | 250×100×6～12.0 |
| 20×20×0.4～1.5 | 420×420×10.0～14.0 | 15×30×1.5～1.5 | 250×200×6～12.0 |
| 25×25×0.6～2.0 | 450×450×10.0～14.0 | 15×38×0.6～1.5 | 300×150×6～12.0 |
| 30×30×0.6～4.0 | 480×480×10.0～14.0 | 20×30×0.6～2.0 | 300×200×6～12.0 |
| 34×34×1.0～2.0 | 500×500×10.0～14.0 | 20×40×0.8～2.0 | 300×250×6～12.0 |
| 35×35×1.0～4.0 | 20×50×1.0～2.0 | 400×250×8～12.0 | |
| 38×38×1.0～4.0 | 550×550×10.0～40.0 | 22×35×0.9～2.0 | 400×300×8～12.0 |
| 40×40×1.0～4.5 | 600×600×10.0～40.0 | 25×40×0.9～3.75 | 450×200×8～12.0 |
| 44×44×1.0～4.5 | 700×700×10.0～40.0 | 25×65×1.0～2.0 | 450×250×8～12.0 |
| 45×45×1.0～5.0 | 800×800×10.0～50.0 | 30×40×1.0～3.75 | 400×300×8～12.0 |
| 50×50×1.0～5.0 | 900×900×10.0～50.0 | 30×45×1.0～3.75 | 400×350×8～12.0 |
| 60×60×1.5～5.0 | 1000×1000×10.0～50.0 | 30×50×1.0～4.0 | 500×200×10～12.0 |
| 70×70×2.0～6.0 | 30×60×1.0～4.5 | 500×250×10～12.0 | |
| 75×75×2.0～6.0 | 40×50×1.0～4.5 | 500×300×10～12.0 | |
| 80×80×2.0～6.0 | 40×60×1.0～5.0 | 500×350×10～12.0 | |
| 85×85×2.0～6.0 | 40×80×1.5～5.0 | 500×400×10～12.0 | |
| 95×95×2.0～8.0 | 40×100×2.0～5.0 | 500×450×10～12.0 | |
| 100×100×2.0～8.0 | 50×60×2.0～5.0 | ||
| 120×120×4.0～8.0 | 50×80×2.0～5.0 | 600×200×10～28.0 | |
| 150×150×6.0～10.0 | 50×100×2.0～8.0 | 600×400×10～28.0 | |
| 180×180×6.0～12.0 | 60×80×2.0～6.0 | 600×500×10～28.0 | |
| 200×200×6.0～12.0 | 80×100×2.0～8.0 | 800×400×10～28.0 | |
| 220×220×6.0～14.0 | 120×60×2.5～10.0 | 800×600×10～28.0 | |
| 250×250×6.0～14.0 | 120×80×2.5～10.0 | 800×700×10～28.0 | |
| 280×280×6.0～14.0 | 150×100×2.5～12.0 | 1000×400×10～28.0 | |
| 300×300×8.0～14.0 | 180×150×2.5～12.0 | 1000×500×10～28.0 | |
| 320×320×8.0～14.0 | 200×100×4～12.0 | 1000×600×10～28.0 | |
| 350×350×8.0～14.0 | 200×150×4～12.0 | 1000×800×10～28 | |
Quick Detail:
1.Galvanized square pipe /Galvanized rectangular pipe
Applications:
Due to the galvanized treatment on square pipes, the application range of galvanized square pipes has been greatly expanded compared to square pipes. It is mainly used for curtain walls, construction, mechanical manufacturing, steel construction projects, shipbuilding, solar power generation brackets, steel structure engineering, power engineering, power plants, agricultural and chemical machinery, glass curtain walls, automotive chassis, airports, etc.
Competitive Advantage:
Galvanization can enhance the protective effect and corrosion resistance of steel pipes. The entire structure is composed of zinc, forming a dense quaternary crystal. This crystal forms a barrier on the steel plate, effectively preventing corrosion factors from penetrating. The corrosion resistance comes from the strong protective function of the barrier layer of zinc. When zinc is used as sacrificial protection in areas such as cutting edges, scratches, and coating abrasions, it forms an insoluble oxide layer, exerting a barrier protection function
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