| Customization: | Available |
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| After-sales Service: | Warranty |
| Warranty: | 2 Year |
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Square tube product features and uses
1. Square tube product description
Square tube is a hollow square cross-section light thin-walled steel tube, also known as steel cold-bent profile.
It is a square cross-section steel made of Q235 hot-rolled or cold-rolled strip or coil as the base material, which is formed by cold bending and then high-frequency welding.
In addition to the thickening of the wall thickness, the corner size and edge straightness of the hot-rolled extra-thick-walled square tube reach or even exceed the level of the resistance-welded cold-formed square tube.
2. Square tube uses
Square tubes are used in 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, boiler construction, highway railings, house construction, etc.
| Product Name | Q195 Q235 Q345 Ss400 A36 Q275 sch40 Square Carbon Steel Pipe For Seamless |
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Surface Treatment
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Hot Rolled
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Tolerance
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±1%
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Processing Service
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Welding, Punching, Cutting, Bending, Decoiling
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Oiled or Non-oiled
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Non-oiled
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Invoicing
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by actual weight
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Delivery Time
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within 7 days
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Grade
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Q345,Q195,Q215,A53,A106,etc
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Usage
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Building Industry Machinery
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Package
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Seaworthy Standard Package
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MOQ
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1 Ton
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Sample
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Avaliable
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PRICE TERM
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CIF CFR FOB EXW
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Length
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Customized as requireme
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4. Classification of square tube cross-sectional shapes
Square tubes are classified by cross-sectional shapes:
(1) Square tubes with simple cross-sectional shapes - square square tubes, rectangular square tubes
(2) Square tubes with complex cross-sectional shapes - flower-shaped square tubes, open-shaped square tubes, corrugated square tubes, special-shaped square tubes
5. Classification of square tube surface treatment
Square tubes are classified by surface treatment: hot-dip galvanized square tubes, electro-galvanized square tubes, oiled square tubes, pickled square tubes
6. Classification of square tube uses
Square tubes are classified by use - decorative square tubes, square tubes for machine tools and equipment, square tubes for mechanical industry, square tubes for chemical industry, square tubes for steel structures, square tubes for shipbuilding, square tubes for automobiles, square tubes for steel beams and columns, and square tubes for special purposes
7. Classification of square tube wall thickness
Square tubes are classified by wall thickness - extra-thick-walled square tubes, thick-walled square tubes, and thin-walled square tubes
Our company is a collection of R & D, production, management as one of the group company, the company and subsidiaries mainly produce carbon steel series, stainless steel series, galvanized series, aluminum series and PPGI, PPGL series and other products of modern enterprises. The company covers an area of 36,000 square meters and employs more than 500 people. The leading products are seamless steel pipe, carbon steel bar, color coated plate and aluminum foil, which are famous brand products in Shandong Province. Hanbang Brand is a well-known brand in China. The company won the seventh Mayor Quality Award. It is the single champion enterprise in Shandong Province, the quality benchmark enterprise in Shandong Province, the national contract-abiding and credit-keeping enterprise, and the national "Architectural Decoration color Steel Plate" and other 16 national, industrial and group standards. Prepare the units. Products are exported to Russia, Canada, Australia, Africa, South America, Southeast Asia and other more than 40 countries and regions.
The mechanical engineering workshops of our factory are all equipped with numerical central control ,Our factory has been constantly improving the platform construction, improving the quality of technical team,strengthening the invention of products category, formed complete R & D system and production quality management system, wined high reputation in the iron and steel industry.
| Thick wall square Pipe Specification Table (mm) | Thick wall square Pipe Specification Table (mm) | ||
| 16×16×0.4~1.5 | 380×380×8.0~30.0 | 10×20×0.6~1.5 | 250×150×6~12.0 |
| 18×18×0.4~1.5 | 400×400×8.0~30.0 | 14×21×0.6~1.5 | 250×100×6~12.0 |
| 20×20×0.4~1.5 | 420×420×10.0~30.0 | 15×30×1.5~1.5 | 250×200×6~30.0 |
| 25×25×0.6~2.0 | 450×450×10.0~30.0 | 15×38×0.6~1.5 | 300×150×6~30.0 |
| 30×30×0.6~4.0 | 480×480×10.0~30.0 | 20×30×0.6~2.0 | 300×200×6~30.0 |
| 34×34×1.0~2.0 | 500×500×10.0~30.0 | 20×40×0.8~2.0 | 300×250×6~30.0 |
| 35×35×1.0~4.0 | Modified specifications are as follows | 20×50×1.0~2.0 | 400×250×8~30.0 |
| 38×38×1.0~4.0 | 550×550×10.0~40.0 | 22×35×0.9~2.0 | 400×300×8~30.0 |
| 40×40×1.0~4.5 | 600×600×10.0~40.0 | 25×40×0.9~3.75 | 450×200×8~30.0 |
| 44×44×1.0~4.5 | 700×700×10.0~40.0 | 25×65×1.0~2.0 | 450×250×8~30.0 |
| 45×45×1.0~5.0 | 800×800×10.0~50.0 | 30×40×1.0~3.75 | 400×300×8~30.0 |
| 50×50×1.0~5.0 | 900×900×10.0~50.0 | 30×45×1.0~3.75 | 400×350×8~30.0 |
| 60×60×1.5~5.0 | 1000×1000×10.0~50.0 | 30×50×1.0~4.0 | 500×200×10~30.0 |
| 70×70×2.0~6.0 | 30×60×1.0~4.5 | 500×250×10~30.0 | |
| 75×75×2.0~6.0 | 40×50×1.0~4.5 | 500×300×10~30.0 | |
| 80×80×2.0~6.0 | 40×60×1.0~5.0 | 500×350×10~30.0 | |
| 85×85×2.0~6.0 | 40×80×1.5~5.0 | 500×400×10~30.0 | |
| 95×95×2.0~8.0 | 40×100×2.0~5.0 | 500×450×10~30.0 | |
| 100×100×2.0~8.0 | 50×60×2.0~5.0 | Modified specifications are as follows | |
| 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 | |
| 200×200×6.0~30.0 | 80×100×2.0~8.0 | 800×400×10~28.0 | |
| 220×220×6.0~30.0 | 120×60×2.5~10.0 | 800×600×10~28.0 | |
| 250×250×6.0~30.0 | 120×80×2.5~10.0 | 800×700×10~28.0 | |
| 280×280×6.0~30.0 | 150×100×2.5~12.0 | 1000×400×10~28.0 | |
| 300×300×8.0~30.0 | 180×150×2.5~12.0 | 1000×500×10~28.0 | |
| 320×320×8.0~30.0 | 200×100×4~12.0 | 1000×600×10~28.0 | |
| 350×350×8.0~30.0 | 200×150×4~12.0 | 1000×800×10~28 | |
| 1, the above square tube can be made straight slit square tube and seamless square tube, special specifications can be customized processing. | |||
| 2. Implementation standard :GB/T6728-2002, ASTM, JIS or technical agreement. | |||
| 3, square pipe material :235B, Q345(B,C), 16Mn,20#, 45#, 20MN2. | |||
1. wood pallet packing cover with water-proof paper
2. steel pallet packing cover with water-proof paper
3. wood box packing
4. steel pallet packing cover with steel box
5. in bundles with steel strip no extra packing
6. packaged as customers' requirments.
1. Q: Are you a manufacturer?
A:Yes, we are manufacturers. We have our own factory and our own company. I believe we will be the
most suitable supplier for you.
2. Q: Can we visit your factory?
A: Sure, we welcome you to visit our factory , check our production lines and know more about our strength and quality.
3. Q: Do you have quality control system?
A: Yes, we have ISO, BV, MTC, certifications and our own quality control laboratory.Third party testing services are also available.
4. Q: Can you arrange the shipment for us?
A: Yes, we have designated sea freight and railway freight forwarders with decades of experiences and we get the best price with earlist vessel and professional service.
5. Q: How long is your delivery time?
A: Generally it is 7days if we have the exact goods in our stock. If not, it will take around 15-20 days to get goods ready for delivery.
6. Q: Can I get some samples?
A: We are glad to provide free samples to you, but we do not offer the freight.
7. Q: What is your after-sale service?
A: We provide after-sale service and offer 100% guarantee on our products.
8. Q: What is your MOQ?
A: 2 Ton
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