• Cold formed welded square rectangular pipe for construction System 1
  • Cold formed welded square rectangular pipe for construction System 2
Cold formed welded square rectangular pipe for construction

Cold formed welded square rectangular pipe for construction

Ref Price:
get latest price
Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
10 m.t.
Supply Capability:
15000 m.t./month

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Specification

Standard:
AISI,JIS,GB,BS,DIN,API,EN,ASTM
Technique:
Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Saw,Extruded,EFW,Spring
Shape:
U Channel,Square,C Channel,Hexagonal,Round,Rectangular,Oval,LTZ
Surface Treatment:
Galvanized,Coated,Copper Coated,Color Coated,Oiled,Dry,Chromed Passivation,Polished,Bright,Black,PVDF Coated
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B)
Thickness:
0-23mm
Length:
0-600mm
Net Weight:
12

1  Square rectangular tubes for buildings 

Square tube, square tube is a kind of call and rectangular tube, is equal and not equal to the length of steel pipe. Is the strip through the process of processing roll system. In general is the strip through the demolition of the package, flat, curly, welded to form a circular tube, and then rolled into a square tube and then cut into a square tube and then cut into the required length.

 

2  Square rectangular tubes for buildings 

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

 

3  Square rectangular tubes for buildings 

Standard

GB, DIN, ASTM

Grade

10#-45#, 16Mn

10#, 20#, 45#, 16Mn

Thickness

1.5 - 25 mm

Section Shape

Square  and rectangular

Outer Diameter

20*20 mm-------400*400mm   20*30mm*300*500mm

Place of Origin

Tianjin, China (Mainland)

Length

3-12M

Outer Diameter

20*20 mm-------400*400mm   20*30mm*300*500mm

Grade 

235B   345B 

Standard

ASME, ASTM

 

1) Material:(ASTM A 106/A53 GRB.API5LGRB,GB,235B,345B

2) Specification range:OD: 20*30mm----300*500mm 20*20 mm---400*400mm    ,WT: 1.5 - 25 mm   ,length:3-12m or according to the requirement of clients.

3) Excutive standards:GB,ASME API5L.ASTM A 106/A53,Despite of the above
4) Surface:black lacquered,varnish coating or galvanized.
5) Ends:Beveled or square cut ,painted.
6) Packing:bundles wrapped with strong steel strip,seaworthy packing. 

 

 

4Packaging & Delivery

Packaging Details:

seaworthy package,bundles wrapped with strong steel strip

Delivery Detail:

15-30days after received 30%TT

 

5  Square rectangular tubes for buildings  

How is the quality of your products?
    Our products are manufactured strictly according to national and internaional standard, and we take a test 
on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.

How about price?
    Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.

Why should you chose us?
    Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.

 

6  Square rectangular tubes for buildings 

 

Cold formed welded square rectangular pipe for construction

Cold formed welded square rectangular pipe for construction

 

 

Q: How are steel pipes threaded for connection?
Steel pipes are threaded for connection using a threading machine or a die. The pipe is clamped securely into the machine, and a rotating die is then used to cut threads into the pipe's surface. This process creates the necessary grooves and ridges that allow the pipes to be securely connected together.
Q: What is the difference between internal and external coating of steel pipes?
The difference between internal and external coating of steel pipes lies in their purpose and application. Internal coating is applied to the inner surface of the pipe to protect it from corrosion, enhance flow efficiency, and prevent contamination of transported fluids. It is commonly used in industries such as oil and gas, water treatment, and chemical processing. On the other hand, external coating is applied to the outer surface of the pipe to protect it from corrosion caused by environmental factors such as moisture, chemicals, and physical damage. It is typically used in underground or above-ground applications, including pipelines, structural steel, and water distribution systems.
Q: How are steel pipes used in the agriculture sector?
Steel pipes are commonly used in the agriculture sector for various purposes such as irrigation systems, water transportation, and structural support for greenhouse structures. They are also used for the construction of livestock enclosures and handling equipment. Overall, steel pipes play a crucial role in ensuring efficient and reliable operations in the agriculture industry.
Q: Is there any difference between thermal expansion seamless steel pipe and seamless steel pipe?
Differ,Thermal expansion seamless steel tube is what we often call "thermal expansion tube", the density is relatively low, but a strong contraction of the steel pipe, (seamless steel pipe) can be referred to as "heat expansion.". A finishing rolling process for pipe rolling by using oblique rolling or drawing method to enlarge pipe diameter. In a relatively short period of time, the outer diameter of the steel pipe becomes larger, and the seamless tube with nonstandard and special type can be produced, and the cost is lower and the production efficiency is high, which is the development trend of the international rolling tube field at present.
Q: What are the different types of steel pipe fittings for plumbing systems?
There are several different types of steel pipe fittings for plumbing systems, including elbows, tees, couplings, unions, reducers, and flanges.
Q: Can steel pipes be used for conveying oil?
Yes, steel pipes can be used for conveying oil. Steel pipes are commonly used in the oil and gas industry for transporting oil due to their strength, durability, and resistance to corrosion. The high strength of steel pipes allows them to withstand the high pressure and temperature conditions that are often associated with oil transportation. Additionally, steel pipes are less prone to leakage and damage compared to other materials, making them a reliable choice for conveying oil over long distances. Moreover, the smooth interior surface of steel pipes helps to minimize friction and enhance the flow of oil. Overall, steel pipes are a preferred option for oil transportation due to their superior mechanical properties and long-term performance.
Q: Can steel pipes be used for wastewater treatment facilities?
Yes, steel pipes can be used for wastewater treatment facilities. Steel pipes are known for their durability, corrosion resistance, and high strength, which makes them suitable for handling various types of wastewater and harsh chemicals. Additionally, steel pipes can be easily welded, allowing for flexibility in design and installation.
Q: Is the steel frame on each floor supporting formwork (floor) called full scaffolding?
After the use of full scaffolding, more than 3.6 meters of interior wall decoration is no longer calculated decorative scaffolding, and the interior wall of the scaffolding is still in accordance with the provisions of the scaffolding.
Q: Can steel pipes be used for underground utility lines?
Yes, steel pipes can be used for underground utility lines. Steel pipes are known for their durability and strength, making them suitable for underground applications. They can withstand heavy loads, pressure, and corrosion, which are essential factors for utility lines that are buried underground. Additionally, steel pipes can be welded or threaded together, allowing for easy installation and maintenance.
Q: What are the environmental impacts of steel pipe manufacturing?
The environmental impacts of steel pipe manufacturing include the extraction of raw materials such as iron ore and coal, leading to habitat destruction and increased carbon emissions. The manufacturing process itself involves high energy consumption and releases greenhouse gases, contributing to climate change. Additionally, the disposal of waste materials and chemicals used during production can contaminate soil and water sources if not handled properly. Overall, steel pipe manufacturing has significant environmental implications that need to be addressed through sustainable practices and technologies.

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