• Curtain Wall Square And Rectangular Tube
  • Curtain Wall Square And Rectangular Tube
Curtain Wall Square And Rectangular Tube
Curtain Wall Square And Rectangular Tube

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

Keywords: BY Steel Structure

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.

 

HONOR QUALIFICATIONS

Chentai Quality System Certification

Chentai Quality System Certification

ISO 9000

ISO 9000

SGS-certificate-based-on-American-standard

SGS-certificate-based-on-American-standard

SGS-certificate-based-on-American-standard

SGS-certificate-based-on-American-standard

SGS

SGS

CE.002020191224

CE.002020191224

BESC

BESC

CCIC

CCIC

CUSTOMER VISIT

Customer visit

Customer visit

Customer visit

Customer visit

Customer visit

Customer visit

Customer visit

Customer visit

Customer visit

Customer visit

Customer visit

Customer visit

Customer visit

Customer visit

Customer visit

Customer visit

QUALITY INSPECTION

Steel-packing

Steel-packing

Measure-the-panel-width

Measure-the-panel-width

Roof-sheeting-thickness-checking

Roof-sheeting-thickness-checking

Nondestructive-testing-2

Nondestructive-testing-2

Clients-inspection

Clients-inspection

Item-numbers-on-the-products

Item-numbers-on-the-products

Fillet-weld-effective-throat-check

Fillet-weld-effective-throat-check

Film-adhesion-test

Film-adhesion-test

FACTORY WORKSHOP

factory

factory

factory

factory

factory

factory

factory

factory

factory

factory

factory

factory

factory

factory

factory

factory

FAQ

Q1: Are you a manufacturer?

Q1: Are you a manufacturer?

A: Yes , we are a manufacturer, We have own factory, which is located in LiaoCheng,China. We have a leading power in producing and exporting galvanized steel coil,galvalume steel coil,ppgi etc. We promise that we are what you are looking for.
A: Yes , we are a manufacturer, We have own factory, which is located in LiaoCheng,China. We have a leading power in producing and exporting galvanized steel coil,galvalume steel coil,ppgi etc. We promise that we are what you are looking for.
Q2:Can we visit your factory ?

Q2:Can we visit your factory ?

A:Warmly welcome once we have your schedule we will pick you up .
A:Warmly welcome once we have your schedule we will pick you up .
Q3: Do you have quality control?

Q3: Do you have quality control?

A: Yes, we have gained BV, SGS authentication.
A: Yes, we have gained BV, SGS authentication.
Q4: Can you arrange the shipment?

Q4: Can you arrange the shipment?

A: Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service.
A: Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service.
Q5: How long is your delivery time?

Q5: How long is your delivery time?

A: Generally it is 7-14 days if the goods are in stock. or it is 25-45 days if the goods are not in stock, it is according to quantity.
A: Generally it is 7-14 days if the goods are in stock. or it is 25-45 days if the goods are not in stock, it is according to quantity.
Q6:How can we get the offer?

Q6:How can we get the offer?

A:Please offer the specification of the product,such as material,size,shape,etc.So wecan give the best offer.
A:Please offer the specification of the product,such as material,size,shape,etc.So wecan give the best offer.

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