• A variety of low carbon square rectangular tube System 1
  • A variety of low carbon square rectangular tube System 2
A variety of low carbon square rectangular tube

A variety of low carbon square rectangular tube

Ref Price:
get latest price
Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
15 m.t.
Supply Capability:
18000 m.t./month

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Item specifice

Standard:
AISI,JIS,GB,BS,API,EN,ASTM
Technique:
Hot Rolled,Cold Rolled,Cold Drawn,ERW,Saw,Extruded,EFW
Shape:
Square,Rectangular,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,10#,20#
Certification:
ISO,SGS,BV,IBR,RoHS,CE,API,BSI,UL
Thickness:
0-32
Length:
0-17
Net Weight:
0-10

 

1Structure of  A variety of low carbon square rectangular tube

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.

 

2A variety of low carbon square rectangular tube for steel structure:

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

 

3 A variety of low carbon square rectangular tubefor steel structure

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

 

5FAQ of  Kinds of A variety of low carbon square rectangular tube

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 A variety of low carbon square rectangular tube Images ‍‍

 

A variety of low carbon square rectangular tube

A variety of low carbon square rectangular tube

Q:Are steel pipes suitable for use in nuclear power plants?
Yes, steel pipes are suitable for use in nuclear power plants. They are commonly used in various systems such as cooling, steam, and reactor coolant systems due to their high strength, durability, and resistance to corrosion. Additionally, steel pipes can withstand the high pressure and temperature conditions present in nuclear power plants, making them a reliable choice for this critical infrastructure.
Q:What is the difference between hot-dip galvanizing and electroplating of steel pipes?
Hot-dip galvanizing and electroplating are two different methods used to protect steel pipes from corrosion. Hot-dip galvanizing involves immersing the steel pipes into a molten zinc bath. The zinc reacts with the steel surface, forming a series of zinc-iron alloy layers on the pipe's surface. This process creates a robust and uniform coating that provides excellent corrosion resistance. Hot-dip galvanizing is commonly used for outdoor applications and in environments where the pipes are exposed to harsh conditions, such as water or chemicals. On the other hand, electroplating involves the deposition of a thin layer of metal onto the surface of the steel pipes using an electric current. In the case of steel pipes, the most common metal used for electroplating is zinc. The steel pipes act as the cathode, and a zinc anode is placed in a solution containing zinc ions. The electric current causes the zinc ions to react with the steel surface, resulting in the formation of a thin zinc coating. Electroplating provides a more decorative finish and is often used for indoor applications or when aesthetics are a priority. In terms of the coating thickness, hot-dip galvanizing generally provides a thicker and more durable coating compared to electroplating. The hot-dip galvanized coating is typically several times thicker than the electroplated zinc coating. This thicker coating offers better protection against corrosion and provides a longer lifespan for the steel pipes. Another difference lies in the coating appearance. Hot-dip galvanizing produces a coating with a matte gray finish, while electroplating can result in a more lustrous and shiny appearance. Cost-wise, hot-dip galvanizing is generally more cost-effective for larger projects due to its efficiency in coating multiple pipes simultaneously. Electroplating, on the other hand, is typically more expensive and time-consuming, especially for larger quantities of steel pipes. Overall, the choice between hot-dip galvanizing and electroplating depends on the specific requirements of the project, including the intended application, environment, aesthetics, and budget constraints.
Q:How are steel pipes used in LNG terminals?
Steel pipes are used in LNG terminals for the transportation of liquefied natural gas from storage tanks to various processing units within the terminal. These pipes are designed to withstand the extreme cold temperatures and high pressure of LNG, ensuring safe and efficient transfer of the gas. Additionally, steel pipes are also used for the distribution of LNG to various end-users, such as power plants or industrial facilities, providing a reliable and robust infrastructure for the delivery of this valuable energy source.
Q:How are steel tubes represented?
If you speak of steel pipe, if it is water. Gas transmission pipe, then it is said: nominal diameter refers to the inner diameter. The units are millimeters or inches. [for example, water pipes with phi 25. It means that the nominal diameter (diameter) is 25mm (or an inch) steel pipe.
Q:How are steel pipes repaired in case of damage?
Steel pipes are repaired in case of damage through various methods such as welding, patching, or replacing the damaged section. The appropriate repair technique depends on the type and extent of the damage to ensure the structural integrity and functionality of the pipe.
Q:Can steel pipes be used for conveying natural gas?
Certainly, natural gas can indeed be transported through steel pipes. In reality, steel pipes are frequently employed for this task owing to their robustness, long-lasting nature, and capacity to endure elevated pressures. Moreover, steel pipes exhibit exceptional resistance to corrosion, a vital feature when conveying natural gas containing impurities such as water and sulfur compounds. Furthermore, connecting various parts of the pipeline becomes effortless with steel pipes, thanks to their ease of welding. All in all, when it comes to conveying natural gas, steel pipes emerge as a trustworthy and secure option.
Q:How are steel pipes used in offshore drilling platforms?
Steel pipes are used in offshore drilling platforms for various purposes. They are primarily used as conduits for the transportation of drilling fluids, such as mud and cement, to and from the drilling rig. Steel pipes are also crucial components in the construction of risers, which connect the wellhead to the drilling rig, allowing for the extraction of oil or gas. Additionally, steel pipes are utilized in the installation of subsea pipelines, which transport the extracted hydrocarbons to onshore processing facilities. Overall, steel pipes play a vital role in the efficient and safe operation of offshore drilling platforms.
Q:What are the factors to consider when selecting pipe materials for corrosive environments?
To ensure the longevity and effectiveness of a piping system in corrosive environments, several important factors must be considered. Firstly, the corrosion resistance of the pipe material is crucial. It is essential to select a material highly resistant to corrosion as time can cause significant damage to pipes in corrosive environments. Stainless steel, fiberglass, PVC, and CPVC are materials known for their excellent corrosion resistance. Secondly, the chemical compatibility of the pipe material with the corrosive environment should be assessed. Different materials have varying resistance levels to different chemicals, so it is important to ensure that the chosen material can withstand the specific chemicals present. Consulting chemical compatibility charts and seeking expert advice can aid in selecting the right material. Furthermore, the temperature and pressure requirements within the corrosive environment should be taken into account. Some materials have limitations in terms of temperature and pressure resistance, exceeding which can lead to pipe failure. It is crucial to choose a material that can handle the required temperature and pressure ranges without compromising its structural integrity. The cost of the pipe material and its installation should also be considered. While certain materials may offer high corrosion resistance, they may also be more expensive. Striking a balance between the desired level of corrosion resistance and the available budget is essential. Lastly, the maintenance requirements and overall durability of the pipe material should be evaluated. Some materials may require more frequent inspections, cleaning, or repairs compared to others. Considering the anticipated lifespan of the piping system and the ease of maintenance can help in selecting a material that ensures long-term reliability and cost-effectiveness. In conclusion, when selecting pipe materials for corrosive environments, it is important to consider factors such as corrosion resistance, chemical compatibility, temperature and pressure requirements, cost, and maintenance and durability. By carefully evaluating these factors, one can choose a pipe material that best suits the specific corrosive environment and ensures a reliable and long-lasting piping system.
Q:How are steel pipes classified based on their diameter?
Steel pipes can be classified based on their diameter into various categories. The most common classification system for steel pipes is based on the nominal pipe size (NPS). NPS is a North American set of standard sizes that are used to designate the diameter of a pipe. It is expressed in inches and represents the approximate inside diameter (ID) of the pipe. Steel pipes are typically classified into three main categories based on their diameter: small bore, medium bore, and large bore. Small bore pipes typically have NPS of 2 inches and below, medium bore pipes have NPS between 2 and 24 inches, and large bore pipes have NPS greater than 24 inches. In addition to the NPS classification, steel pipes can also be classified based on their actual outside diameter (OD). This classification is used to determine the compatibility of pipes with fittings and other components. The OD classification is usually expressed in inches or millimeters. Overall, the classification of steel pipes based on their diameter provides a standardized system for easy identification and selection of pipes for various applications. It helps in ensuring compatibility, efficient installation, and effective functioning of piping systems in different industries such as construction, oil and gas, plumbing, and more.
Q:How do you calculate the pipe deflection for steel pipes?
To determine the pipe deflection of steel pipes, various factors must be taken into account. Pipe deflection refers to the bending or displacement that occurs when a load is applied. The following steps outline the process for calculating pipe deflection: 1. Obtain the steel pipe properties: Familiarize yourself with the material properties of the steel pipe, including its Young's modulus (E) and moment of inertia (I). Young's modulus denotes the material's stiffness, while the moment of inertia measures its resistance to bending. 2. Identify the applied load: Determine the nature and magnitude of the load that will be exerted on the pipe. This may encompass internal pressure, external loads, or thermal expansion. 3. Utilize the appropriate formula: Depending on the load type and pipe support conditions, the suitable formula must be employed to calculate the deflection. For instance, if the pipe is simply supported (fixed at both ends), the formula δ = (5 * w * L^4) / (384 * E * I) can be used. Here, δ represents the deflection, w signifies the load per unit length, L denotes the pipe length, and E and I refer to the previously mentioned material properties. 4. Input values and compute: Insert the load, pipe length, and material properties into the formula. By doing so, the deflection of the steel pipe can be determined. It is crucial to note that calculating pipe deflection is a complex procedure that necessitates expertise in structural engineering. Therefore, it is advisable to consult a professional engineer or employ specialized software for accurate and reliable results.

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