• Square rectangular tube for high quality structure System 1
  • Square rectangular tube for high quality structure System 2
  • Square rectangular tube for high quality structure System 3
Square rectangular tube for high quality structure

Square rectangular tube for high quality structure

Ref Price:
get latest price
Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
10 m.t.
Supply Capability:
9000 m.t./month

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Item specifice

Standard:
GB,EN
Technique:
Hot Rolled,ERW
Shape:
Square,Rectangular
Surface Treatment:
Galvanized,Oiled,Black
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B
Thickness:
1.5mm-20mm
Length:
20mm-500mm
Net Weight:
10

 

1Structure of  Square rectangular tube for high quality structure

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.

 

2‍‍Main Features of  Square rectangular tube for high quality structure:

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

 

3 Square rectangular tube for high quality structure Specification

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,plastic capped,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  Square rectangular tube for high quality structure:  

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 tube for high quality structure Images ‍‍

Square rectangular tube for high quality structure

Square rectangular tube for high quality structure

 

Q:Can steel pipes be used for sewage and wastewater systems?
Yes, steel pipes can be used for sewage and wastewater systems. Steel pipes offer durability, strength, and resistance to corrosion, making them suitable for conveying sewage and wastewater. Additionally, steel pipes can handle high-pressure flows and are often used in larger diameter applications, making them a reliable choice for sewage and wastewater systems.
Q:What are the advantages of using steel pipes in the manufacturing of furniture?
There are several advantages of using steel pipes in the manufacturing of furniture. Firstly, steel pipes offer exceptional strength and durability, ensuring that the furniture will be long-lasting and capable of withstanding heavy use. Secondly, steel pipes are highly resistant to corrosion, making them suitable for both indoor and outdoor furniture. Additionally, steel pipes provide a sleek and modern aesthetic, adding a touch of sophistication to the furniture design. Lastly, steel pipes are relatively lightweight compared to other materials like wood or concrete, making transportation and installation easier. Overall, using steel pipes in furniture manufacturing offers a combination of strength, durability, aesthetic appeal, and practicality.
Q:How do you determine the required wall thickness for steel pipes?
The required wall thickness for steel pipes is determined through various factors and calculations. One of the primary considerations is the pressure that the pipe will be subjected to. The higher the pressure, the thicker the wall needs to be to ensure the pipe can withstand the internal forces. Another important factor is the material strength of the steel used for the pipe. Different grades of steel have varying tensile strengths, which affect the required wall thickness. The tensile strength is the maximum amount of stress a material can withstand before it fails, so it is crucial to select a steel grade that can handle the expected pressure. Additionally, the pipe's diameter plays a role in determining the required wall thickness. Larger diameter pipes generally require thicker walls to maintain structural integrity and prevent deformation under pressure. To calculate the required wall thickness, engineers use industry standards and formulas. The most commonly used standard is the American Society of Mechanical Engineers (ASME) B31 code, which provides guidelines for designing pressure piping systems. The ASME code incorporates factors such as safety margins, material properties, and pressure ratings to determine the appropriate wall thickness. Furthermore, other considerations such as temperature, corrosion, and external loads may also influence the required wall thickness. For example, high-temperature applications may require thicker walls to prevent the pipe from buckling or becoming too soft. In summary, determining the required wall thickness for steel pipes involves considering factors such as pressure, material strength, diameter, temperature, and other external forces. Engineers rely on industry standards and calculations to ensure the pipe can withstand the intended operating conditions safely.
Q:What is the difference between steel pipes and copper-nickel pipes?
Steel pipes and copper-nickel pipes differ in material composition and properties. Steel pipes are primarily made from iron and carbon, which provide strength and durability. They are suitable for various applications, including plumbing, construction, and industrial purposes. On the other hand, copper-nickel pipes are composed of a combination of copper and nickel, which offer excellent corrosion resistance and thermal conductivity. These pipes are often used in marine environments, desalination plants, and offshore oil and gas industries due to their ability to withstand saltwater corrosion. Overall, the main distinction lies in their composition and specific applications based on their unique properties.
Q:What is the difference between API 5L and ASTM A53 steel pipes?
API 5L and ASTM A53 are two widely used standards for carbon steel pipes. While they both serve similar purposes, there are some key differences between them. 1. Scope: API 5L covers seamless and welded steel pipes for transportation of oil, gas, water, and other fluids. It also includes plain-end, threaded-end, and belled-end pipe types. On the other hand, ASTM A53 is a standard specification for seamless and welded black and hot-dipped galvanized steel pipes used for mechanical and pressure applications. 2. Manufacturing process: API 5L pipe is produced through a hot-rolling process, whereas ASTM A53 pipe is produced through a hot-rolling or cold-drawing process. This difference in manufacturing process affects the pipe's chemical composition and mechanical properties. 3. Chemical composition: API 5L pipe typically has a higher carbon content compared to ASTM A53 pipe. This is because API 5L pipe is used for conveying oil, gas, and water, which often require higher strength and durability. ASTM A53 pipe, on the other hand, is used for mechanical and pressure applications, where lower carbon content is suitable. 4. Mechanical properties: API 5L pipe has higher minimum yield strength and tensile strength compared to ASTM A53 pipe. This is due to the higher carbon content and stricter manufacturing process of API 5L pipe. ASTM A53 pipe has lower yield and tensile strength requirements, making it more suitable for general-purpose applications. 5. Coating options: API 5L pipe can be produced with various coating options such as black varnish, 3PE, FBE, and others, depending on the application requirements. ASTM A53 pipe is usually hot-dipped galvanized for corrosion resistance. In summary, API 5L and ASTM A53 steel pipes have different scopes, manufacturing processes, chemical compositions, mechanical properties, and coating options. Choosing the right pipe depends on the specific application requirements, such as the type of fluid being transported, the operating conditions, and the desired strength and durability.
Q:Can steel pipes be used for conveying hydraulic fluids?
Indeed, hydraulic fluids can indeed be conveyed using steel pipes. The reason behind this lies in the fact that steel pipes possess remarkable tensile strength and are highly resistant to intense pressure, rendering them ideal for hydraulic purposes. They are capable of enduring the frequently encountered high pressures and temperature fluctuations within hydraulic systems. Moreover, steel pipes boast longevity and durability, guaranteeing dependable and efficient fluid transmission in hydraulic systems. Nevertheless, it is crucial to verify the compatibility between the steel pipes employed and the particular hydraulic fluid being conveyed, in order to prevent corrosion or deterioration of the pipe material.
Q:Can steel pipes be used for nuclear power plants?
Yes, steel pipes can be used for nuclear power plants. Steel pipes are commonly used in the construction of nuclear power plants for various purposes such as transporting coolant, steam, and other fluids. Steel pipes offer excellent strength, durability, and resistance to high temperatures and pressure, making them suitable for the demanding conditions of nuclear power plants.
Q:45 and 316 which steel tubes are of high hardness?
No. 45 steel for high-quality carbon structural steel, the hardness is not high machining, used to make the template, mould studs, guide column, subject to heat treatment. 45 steel quenched and tempered hardness between HRC20~HRC30; 45 steel quenching hardness between HRC55~58, the limit value of up to HRC62.
Q:How to make the magnetic steel, can be like a magnet?
Of course, not all materials can be magnetized, austenitic stainless steel will not do.
Q:What are the main types of steel pipe ah? How to judge which kind of steel pipe performance is better?
Steel pipe according to the production method can be divided into two categories: seamless steel pipe and pipe joints, pipe joints as welded steel pipe.1. seamless steel tube according to the production methods can be divided into: hot-rolled seamless pipe, cold drawn tube, precision steel tube, heat expansion tube, cold spinning tube and extrusion tube.Seamless steel tubes are made of high quality carbon or alloy steel. They are hot-rolled and cold-rolled (drawn).Bundled steel pipe

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