• National standard square rectangular tube System 1
  • National standard square rectangular tube System 2
National standard square rectangular tube

National standard square rectangular tube

Ref Price:
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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
15 m.t.
Supply Capability:
9800 m.t./month

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Specification

Standard:
GB,EN
Technique:
Hot Rolled,Cold Rolled,Cold Drawn,ERW,EFW
Shape:
Square,Rectangular
Surface Treatment:
Galvanized,Oiled,Black
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B
Certification:
CE
Thickness:
0-25
Length:
0-18
Net Weight:
0-10

1Structure of  National standard 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.

 

2‍‍Main Features of  National standard square rectangular tube:

• High manufacturing accuracy

• High strength

• Small inertia resistance

• Strong heat dissipation ability

• Good visual effect

• Reasonable price 

 

3 National standard square rectangular tube 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 ,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  National standard 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 National standard square rectangular tube Images ‍‍

National standard square rectangular tube

National standard square rectangular tube

 

 

Q:How are steel pipes used in the manufacturing of conveyor systems?
Steel pipes are commonly used in the manufacturing of conveyor systems to provide a durable and reliable structure for transporting various materials. They are typically used as the main framework for the conveyor system, supporting the conveyor belt and other components. Steel pipes are known for their strength and resistance to wear and tear, making them ideal for handling heavy loads and withstanding continuous use. Additionally, steel pipes can be easily shaped and welded, allowing for customization and flexibility in conveyor system design.
Q:What is the role of steel pipes in the construction of bridges?
The role of steel pipes in the construction of bridges is primarily to provide structural support and stability. Steel pipes are commonly used in bridge construction to form the framework and support the weight of the bridge deck and other components. They are also used to carry various utilities such as water, gas, and electricity across the bridge. Additionally, steel pipes are durable, resistant to corrosion, and have high strength-to-weight ratio, making them an ideal choice for constructing bridges that can withstand heavy loads and harsh environmental conditions.
Q:How are steel pipes used in the agricultural sector?
Steel pipes are commonly used in the agricultural sector for various purposes such as irrigation systems, drainage systems, and construction of structures like greenhouses and barns. They are durable, strong, and can withstand harsh weather conditions, making them ideal for these applications in the agricultural industry.
Q:How do you prevent freezing in steel pipes during cold weather?
To prevent freezing in steel pipes during cold weather, there are several measures that can be taken: 1. Insulate the pipes: Insulation is an effective way to protect steel pipes from freezing. Use insulation sleeves or wraps to cover the pipes, especially in areas where they are exposed to cold temperatures. Insulation helps retain heat and prevents the pipes from reaching freezing temperatures. 2. Seal any air leaks: Check for any gaps or openings around the pipes where cold air can enter. Use caulking or weatherstripping to seal these gaps and prevent cold air from reaching the pipes. 3. Maintain a consistent temperature: Ensure that the area where the pipes are located is adequately heated and insulated. Keeping the temperature above freezing will help prevent the pipes from freezing. If the pipes are exposed to extremely low temperatures, consider using heat tape or pipe heating cables to provide additional warmth. 4. Allow water to flow: Running a small, continuous trickle of water through the pipes can help prevent freezing. The flowing water generates heat and inhibits the formation of ice within the pipes. However, this method should only be used as a last resort, as it can waste water. 5. Drain the pipes: If the steel pipes are in an area that is not regularly used or if freezing weather is expected, it may be advisable to drain the pipes completely. Turn off the water supply and open all faucets to allow the water to drain out. This eliminates any standing water that could freeze and cause the pipes to burst. It is important to note that prevention is key, as frozen steel pipes can lead to costly damages and water leaks. By implementing these measures, you can protect your steel pipes and ensure they remain functional during cold weather.
Q:Are steel pipes suitable for high-pressure applications?
Indeed, steel pipes prove to be an appropriate choice when it comes to high-pressure applications. Renowned for their robustness and endurance, steel pipes are exceptionally well-suited for managing high-pressure scenarios. They possess the remarkable ability to endure the intense internal pressure exerted by fluids or gases without buckling or rupturing. Thanks to their high tensile strength, steel pipes effectively combat the forces that arise in high-pressure environments, thereby ensuring the security and dependability of the piping system. Furthermore, steel pipes can be manufactured with thicker walls, further bolstering their capacity to withstand elevated pressures. Consequently, steel pipes find extensive utilization in various industries, such as oil and gas, petrochemical, power generation, and water distribution, where high-pressure applications are customary.
Q:Can steel pipes be used for water treatment plants?
Yes, steel pipes can be used for water treatment plants. Steel pipes are widely used in water treatment plants due to their high durability, strength, and resistance to corrosion. They can effectively handle the high pressure and flow requirements of water treatment processes. Additionally, steel pipes can be easily welded and joined, making them suitable for various applications within water treatment plants, such as transporting raw water, treating chemicals, and distributing treated water.
Q:How are steel pipes used in irrigation systems?
Steel pipes are commonly used in irrigation systems as they offer durability, strength, and corrosion resistance. These pipes are used to transport water from a water source to the fields or crops being irrigated. Their smooth interior surface allows for efficient water flow, and their high-pressure rating ensures that water reaches the desired areas with adequate force. Additionally, steel pipes are often used in underground irrigation systems due to their ability to withstand external pressures and protect the water supply from potential damage.
Q:What are the different threading options for steel pipes?
The different threading options for steel pipes include tapered thread, straight thread, and multiple thread options. Tapered threads are commonly used for pipes that carry fluids or gases under pressure, as they provide a tight seal. Straight threads are used for pipes that require a secure connection but do not need to be sealed tightly. Multiple thread options, such as double and triple threads, are used for high-pressure applications where a stronger connection is needed.
Q:Are steel pipes suitable for underground irrigation pumping?
Yes, steel pipes are generally suitable for underground irrigation pumping. They are durable, resistant to corrosion, and can withstand high pressure. Additionally, steel pipes provide excellent flow capacity, ensuring efficient water distribution for irrigation purposes.
Q:What are the common methods for joining steel pipes?
The common methods for joining steel pipes include welding, threading, and using mechanical connectors such as couplings or flanges.

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