• Square rectangular tubes for buildings System 1
  • Square rectangular tubes for buildings System 2
Square rectangular tubes for buildings

Square rectangular tubes for buildings

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

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Specification

Standard:
ASTM,JIS,GB,BS,DIN,EN
Technique:
Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Saw,Extruded,EFW,Spring
Shape:
U Channel,Square,Rectangular
Surface Treatment:
Galvanized,Coated,Copper Coated,Color Coated,Oiled,Dry,Chromed Passivation,Polished,Bright,Black,PVDF Coated
Steel Grade:
20#,10#,SS400-SS490,600 Series,400 Series,300 Series,200 Series,HRB400,RHB335,Q235B,Q215B,Q195,Q215,Q235,A53(A,B)
Certification:
SGS,ISO,BSI,CE,RoHS,IBR,BV,UL
Thickness:
0-22mm
Length:
0-600mm
Net Weight:
2

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 

 

Square rectangular tubes for buildings

Square rectangular tubes for buildings

 

 

Q: What are the non-destructive testing methods used for steel pipes?
Some common non-destructive testing methods used for steel pipes include ultrasonic testing, magnetic particle testing, liquid penetrant testing, and visual inspection. These methods allow for the detection of defects or flaws in the pipes without causing any damage to the material.
Q: What is the shear strength of steel pipes?
The shear strength of steel pipes can vary depending on various factors such as the grade of steel, size and thickness of the pipe, and any additional treatments or coatings applied. Generally, the shear strength of steel pipes is high due to the inherent strength of steel, making them suitable for various structural and industrial applications.
Q: What is the standard length of steel pipes?
The standard length of steel pipes can vary depending on the application and industry, but commonly they are available in lengths of 20 feet or 6 meters.
Q: Are steel pipes resistant to impact?
Yes, steel pipes are generally resistant to impact due to their high strength and durability.
Q: How are steel pipes used in nuclear power plants?
Steel pipes are extensively used in nuclear power plants for various purposes. They are primarily used for the transportation of coolant, such as water or gas, which helps in removing heat from the reactor core. Steel pipes are also used to convey steam generated by the reactor to the turbine, where it is used to generate electricity. Additionally, steel pipes are utilized for the transportation of various fluids, such as lubricants and chemicals, for different processes within the plant. The durability, strength, and resistance to high temperatures and pressure make steel pipes an ideal choice for these critical applications in nuclear power plants.
Q: How are steel pipes used in the construction of oil and gas pipelines?
Steel pipes are commonly used in the construction of oil and gas pipelines due to their durability and strength. These pipes provide a reliable and safe means of transporting oil and gas over long distances. They are used to create a network of interconnected pipes that can withstand high pressure and extreme temperatures. Additionally, steel pipes are resistant to corrosion, making them suitable for transporting corrosive fluids. Overall, steel pipes play a crucial role in the construction of oil and gas pipelines by ensuring the efficient and secure transportation of these valuable resources.
Q: Can steel pipes be used for transporting chemicals?
Yes, steel pipes can be used for transporting chemicals. Steel pipes are known for their strength, durability, and resistance to corrosion, making them suitable for handling various chemicals. Additionally, steel pipes can withstand high pressure and temperature conditions, ensuring safe transportation of chemicals.
Q: What are the different methods of wrapping steel pipes for corrosion protection?
There are several different methods of wrapping steel pipes for corrosion protection. These methods can vary depending on the specific application and environmental conditions. Some of the common methods include: 1. Tape Wrapping: This involves wrapping the steel pipes with a corrosion-resistant tape, such as polyethylene or polypropylene tape. The tape acts as a barrier between the pipe surface and the corrosive elements, preventing direct contact and reducing the risk of corrosion. 2. Inner Wrapping: Inner wrapping involves applying a protective coating or lining to the inside surface of the steel pipe. This method is commonly used for pipes that transport fluids or gases, as it provides an additional layer of protection against corrosion from the inside. 3. External Coating: External coating is a widely used method for corrosion protection. It involves applying a protective coating to the outside surface of the steel pipe. The coating can be a variety of materials, such as epoxy, polyethylene, or polyurethane, which provide a barrier against corrosive elements and extend the lifespan of the pipe. 4. Cathodic Protection: Cathodic protection is an electrochemical method used to protect steel pipes from corrosion. It involves connecting the steel pipe to a sacrificial anode, such as zinc or magnesium, which corrodes instead of the pipe. This process helps to prevent the corrosion of the steel pipe by diverting the corrosive current away from the pipe surface. 5. Heat Shrink Sleeve: Heat shrink sleeves are commonly used for corrosion protection in underground or submerged applications. These sleeves are made of a heat-activated material that shrinks when heated, creating a tight seal around the pipe. The sleeve forms an effective barrier against moisture and corrosive elements, preventing direct contact with the steel pipe. 6. Fusion Bonded Epoxy (FBE) Coating: FBE coating is a thermosetting powder coating that is applied to the surface of the steel pipe and then fused to form a protective layer. This coating provides excellent adhesion and corrosion resistance, making it a popular choice for steel pipes in various applications. It is important to note that the selection of the appropriate method for wrapping steel pipes for corrosion protection depends on factors such as the environment, the type of corrosive elements present, the intended application, and other specific requirements. Professional advice and consultation may be necessary to determine the most suitable method for a particular situation.
Q: What are the common grades of steel used in pipes?
The common grades of steel used in pipes include carbon steel, stainless steel, and alloy steel.
Q: What are the advantages of using steel pipes over other materials like PVC or copper?
There are several advantages of using steel pipes over other materials like PVC or copper. Firstly, steel pipes have superior strength and durability, making them suitable for high-pressure applications and extreme weather conditions. Secondly, steel pipes have excellent corrosion resistance, ensuring a longer lifespan compared to PVC or copper. Additionally, steel pipes offer better fire resistance, making them safer for certain applications. Lastly, steel pipes have higher thermal conductivity, allowing for efficient heat transfer.

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