Curtain Wall Square And Rectangular Tube

Curtain wall square and rectangular tubes are also known as square and rectangular cold-formed hollow sections, referred to as square tubes and rectangular tubes, codenamed F and J respectively.

PRODUCT DETAILS

Curtain wall square and rectangular tubes are also known as square and rectangular cold-formed hollow sections, referred to as square tubes and rectangular tubes, codenamed F and J respectively.
1. The allowable deviation of the wall thickness of square and rectangular pipes shall not exceed plus or minus 10% of the nominal wall thickness when the wall thickness is not greater than 10mm. When the wall thickness is greater than 10mm, it shall be plus or minus 8% of the wall thickness. Corner and weld areas Except wall thickness.
2. The usual delivery length of square and rectangular tubes is 4000mm-12000mm, with the majority being 6000mm and 12000mm. Square and rectangular pipes are allowed to be delivered in short length and non-fixed length products of not less than 2000mm, and can also be delivered in the form of interface pipes, but the purchaser should cut off the interface pipes when using them. The weight of short-length and non-fixed-length products shall not exceed 5% of the total delivery quantity, and the weight of square and rectangular pipes with a theoretical weight greater than 20kg/m shall not exceed 10% of the total delivery quantity.
3. The curvature of square and rectangular tubes shall not be greater than 2mm per meter, and the total curvature shall not be greater than 0.2% of the total length.
Process classification
Square and rectangular tubes are divided according to the production process: hot-rolled seamless square tubes, cold-drawn seamless square tubes, extruded seamless square tubes, and welded square tubes.
Section shape classification
Square tubes are classified according to cross-sectional shape:
1. Simple cross-section square tube: square square tube, rectangular square tube.
2. Complex cross-section square tubes: flower-shaped square tubes, open-shaped square tubes, corrugated square tubes, and special-shaped square tubes.

 

Factory

The products distributed by our company are guaranteed by the manufacturer, and have a complete pre-sale, in-sale and after-sales service system. Our company has a strong standing stock of thousands of tons, sufficient supply and complete specifications. It has formed an annual inventory turnover of more than 9,000 tons and more than 800 specifications.

 

 

APPLICATION AREAS

Steel structure is a major type of building structure widely used in many fields. Mainly used in high-rise buildings, long-span buildings, sports venues, exhibition halls, commercial complexes, factories, warehouses, logistics centers, airports, railway stations, underground space projects, etc. The high strength, lightweight and fast construction speed of steel structures make them a typical representative of modern architectural forms.

 

 

Packing and shipping

The products sell well all over the country and are exported to more than 50 countries including the European Union, the United States, Australia, Southeast Asia, and the Middle East. 

 

 

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FAQ

What is your working time?

What is your working time?

In general, our online service time is: 8:00-22:00, after 22:00, we will reply to your inquiry during the next working day.
In general, our online service time is: 8:00-22:00, after 22:00, we will reply to your inquiry during the next working day.
How to pack the products?

How to pack the products?

The inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion during ocean transportation.
The inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion during ocean transportation.
Does the product have quality inspection before loading?

Does the product have quality inspection before loading?

Of course, all our products are strictly tested for quality before packaging.
Of course, all our products are strictly tested for quality before packaging.
Can I go to your factory to visit?

Can I go to your factory to visit?

Of course, we welcome customers from all over the world to visit our factory.
Of course, we welcome customers from all over the world to visit our factory.
Can you send samples?

Can you send samples?

Of course, we can send samples to all parts of the world, our samples are free, but customers need
to bear the courier costs.
Of course, we can send samples to all parts of the world, our samples are free, but customers need to bear the courier costs.
What are the shipping ports?

What are the shipping ports?

You can choose other ports according to your needs.
You can choose other ports according to your needs.

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