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Shanqi
Product Description
Galvanized square tube is divided into hot-dip galvanized square tube and cold-dip galvanized square tube from the production process. This square tube is based on a square tube formed by placing the square tube in a hot-dip galvanizing bath after a series of chemical reactions. The cold-galvanized square tube uses the principle of cold-galvanizing on the square tube used to make the square tube anti-corrosion.
| Standard | GB 5310-1995, JIS G3463-2006, ASTM A106-2006, DIN 1626, API 5CT, BS 1387 |
| Grade | ST37, 15crmo, API J55, STPG42, A53(A,B), 15NiCuMoNb5, Cr17Ni8, STB35, STPA25 |
| Thickness | 3mm - 50mm |
| Section Shape | Square/The needs of customers |
| Place of Origin | China |
| Application | Structure Pipe |
| Technique | Hot Rolled |
| Certification | API |
| Surface Treatment | galvanized |
| Special Pipe | Thick Wall Pipe |
| Alloy Or Not | Is Alloy |
| Tolerance | ±1% |
| Type | Square Tubes |
| Processing Service | Bending, Welding, Decoiling, Punching, Cutting |
| Product name | Square Steel Tube |
| Keyword | Seamless Square Pipes |
| MOQ | 3 Ton |
| Material | Q195/Q215/Q235/Q345/10#/20# |
| Usage | Construction Structure etc |
| Shape | Square. Rectangular |
Since the galvanized square tube is galvanized on the square tube, the application range of the galvanized square tube has been greatly expanded compared with the square tube. It is mainly used in curtain walls, construction, machinery manufacturing, steel construction projects, shipbuilding, solar power generation brackets, steel structure engineering, power engineering, power plants, agricultural and chemical machinery, glass curtain walls, automobile chassis, airports, etc.
There are two types of galvanized square tubes: hot-dip galvanized square tubes and electro-galvanized square tubes. There are wet method, dry method, lead-zinc method, redox method and so on for hot-dip galvanized square tube. The main difference between different hot-dip galvanizing methods is the method used to activate the surface of the pipe body to improve the quality of galvanizing after the steel pipe is pickled and cleaned. Dry method and oxidation-reduction method are mainly used in the current production, and their characteristics are shown in the table. The surface of the electro-galvanized zinc layer is very smooth and dense, with a uniform structure; it has good mechanical properties and corrosion resistance; the zinc consumption is 60% to 75% lower than that of hot-dip galvanizing. Electro-galvanizing is technically complicated, but it must be used for single-sided coating, double-sided coating with different thicknesses on the inner and outer surfaces, and thin-walled pipe galvanizing.
FAQ：
Q: What products does your company have?
A: Our company produces all kinds of galvanized sheets, coils, tubes, steel strips, galvanized sheets, coils, steel strips, PPGI/PPGL, roof panels, etc. Production experience, support customization.
Q: What are the advantages of your company?
A: (1): Prime quality and Competitive price.
(2): Excellent experiences with after-sale service.
(3): Every process will be checked by responsible QC which insures every product's quality.
(4): Professional packing teams which keep every packing safely.
(5): Samples can be provided as your requirements.
Q: What is your terms of payment ?
A: Can be negotiated by both parties. If you have another question, pls feel free to contact us as below.
Q: What about your price?
A: Our price is very competitive.
Pls feel free to contact us if you are interested in our products.
Q: How long is your delivery time?
A: Stock steel/Steel for simple cutting/Small amount of general standard steel: about 5-20 days for delivery; Custom steel/bulk steel: about 15-30 days for delivery. Contact us for specific delivery times.
