• Square rectangular tubes of various standard materials by  sell System 1
  • Square rectangular tubes of various standard materials by  sell System 2
Square rectangular tubes of various standard materials by  sell

Square rectangular tubes of various standard materials by sell

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

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Specification

Standard:
AISI,JIS,GB,BS,DIN,EN,ASTM
Technique:
Hot Rolled,Cold Rolled,ERW,Saw,Extruded,EFW
Shape:
Square,Rectangular
Surface Treatment:
Galvanized,Coated,Copper Coated,Oiled,Dry,Polished,Bright,Black
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#
Thickness:
0-20mm
Length:
0-600mm
Net Weight:
3

1 Square rectangular tubes of various standard materials by sell

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 of various standard materials by sell

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

 

3 Square rectangular tubes of various standard materials  by sell

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 of various standard materials by sell

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 of various standard materials

 

Square rectangular tubes of various standard materials by  sell

Square rectangular tubes of various standard materials by  sell

 

 

Q: What is the typical length of a steel pipe?
The typical length of a steel pipe can vary depending on its intended use and industry standards. However, common lengths range from 18 to 40 feet.
Q: How are steel pipes used in the aerospace industry?
The aerospace industry extensively utilizes steel pipes for various purposes. Aircraft frames heavily rely on steel pipes as they offer the necessary strength and structural integrity. Steel pipes find applications in the fuselage, wings, and landing gear of airplanes, as well as in rocket launch vehicles and space shuttles. The aerospace industry favors steel pipes due to their exceptional strength-to-weight ratio. They possess lightweight properties while maintaining immense strength, enabling the construction of robust and dependable aerospace structures. This aspect proves crucial in the industry as weight reduction significantly improves fuel efficiency and overall performance. Steel pipes also serve the purpose of transporting fluids and gases within aircraft systems. They commonly operate in the hydraulic and fuel systems, facilitating the flow of vital fluids like hydraulic fluid, fuel, and coolant. By ensuring the safe and efficient movement of these fluids throughout the aircraft, steel pipes contribute to its proper functioning and performance. Furthermore, steel pipes find utility in the aerospace industry for heat transfer applications. They form an integral part of the aircraft's cooling systems, aiding in the dissipation of heat generated by engines, electrical components, and other systems. With their exceptional thermal conductivity, steel pipes effectively transfer heat away from critical areas, preventing overheating. In conclusion, steel pipes possess a crucial role in the aerospace industry. They contribute to aircraft construction by providing strength and structural integrity, as well as facilitating fluid and gas transportation and heat transfer. The utilization of steel pipes in the aerospace industry ensures the safety, efficiency, and reliability of aerospace structures and systems.
Q: What is the thermal conductivity of steel pipes?
The thermal conductivity of steel pipes can vary depending on the specific type of steel used and its composition. However, on average, the thermal conductivity of steel pipes is around 50-60 watts per meter-kelvin (W/mK). This means that steel pipes are relatively good conductors of heat, allowing for efficient transfer of thermal energy. The high thermal conductivity of steel pipes makes them suitable for various applications, including heating systems, industrial processes, and infrastructure projects where heat transfer is essential.
Q: What are the different types of steel pipe coatings for underground applications?
There are several types of steel pipe coatings used for underground applications, including fusion bonded epoxy (FBE), coal tar enamel (CTE), polyethylene (PE), and polyurethane (PU). These coatings provide corrosion protection and increase the lifespan of the steel pipes in underground environments.
Q: What is the average lifespan of steel pipes?
The average lifespan of steel pipes can vary depending on various factors such as the quality of the steel used, the environment in which they are installed, and the maintenance and care they receive. However, on average, well-maintained steel pipes can last anywhere from 50 to 100 years or more.
Q: What are the different joining methods for steel pipes?
There are several different joining methods for steel pipes, including welding, threading, flanging, and mechanical coupling.
Q: What are the common standards for manufacturing steel pipes?
The common standards for manufacturing steel pipes include the American Society for Testing and Materials (ASTM) standards, the International Organization for Standardization (ISO) standards, and the American National Standards Institute (ANSI) standards. These standards cover various aspects such as material composition, mechanical properties, dimensions, testing procedures, and quality control requirements to ensure the consistency and reliability of steel pipes.
Q: What are the different standards and specifications for steel pipes?
There are several standards and specifications for steel pipes, including ASTM A53, ASTM A106, ASTM A333, and API 5L. These standards outline the requirements for the manufacturing, testing, and usage of steel pipes in various industries such as construction, oil and gas, and plumbing. The standards cover aspects like dimensions, mechanical properties, chemical composition, and tolerance levels to ensure the quality and reliability of the steel pipes.
Q: How are steel pipes used in the construction of underground utilities?
Steel pipes are commonly used in the construction of underground utilities as they are highly durable and can withstand the pressure and weight of the surrounding soil. They are primarily used for various applications such as transporting water, natural gas, and sewage, as well as for electrical conduit systems. Additionally, steel pipes are resistant to corrosion, which makes them ideal for long-term underground installations.
Q: How does galvanization protect steel pipes from corrosion?
Galvanization protects steel pipes from corrosion by creating a protective zinc layer on the surface of the steel. This zinc layer acts as a barrier, preventing moisture and oxygen from reaching the steel, thus inhibiting the formation of rust and corrosion.

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