Square rectangular tubes for buildings
- Ref 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
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.
4、Packaging & 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
①How 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.
②How 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.
③Why 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
- Q:What are the different methods of cleaning steel pipes?
- There are several methods of cleaning steel pipes, including mechanical cleaning, chemical cleaning, and high-pressure water jetting. Mechanical cleaning involves using wire brushes, scrapers, or sandpaper to physically remove debris and rust from the pipe's surface. Chemical cleaning involves using solvents or acids to dissolve contaminants and rust, followed by flushing the pipe with water. High-pressure water jetting uses a stream of water at high pressure to remove dirt, rust, and other deposits from the pipe's interior and exterior surfaces.
- Q:What is hot rolled steel pipe? What is a cold drawn steel tube?
- Overview of two processesHot-rolled (extrusion seamless pipe): billet, heating, perforation, three roll cross rolling, rolling or extrusion, tube to tube diameter (or reducing) - cooling - tube, straightening, pressure test (or testing), marking and warehousing.Cold drawing (rolling) seamless steel pipe: round tube to heating to perforation, annealing, pickling, leading to oil (copper), multi pass drawing (Leng Zha), the blank pipe, heat treatment, straightening, pressure test (testing), marking and warehousing.
- Q:Are steel pipes recyclable?
- Yes, steel pipes are highly recyclable. They can be melted down and repurposed into new steel products without losing their quality or strength. Recycling steel pipes not only conserves natural resources but also reduces energy consumption and greenhouse gas emissions associated with steel production.
- Q:How are steel pipes used in the manufacturing of fire sprinkler systems?
- Steel pipes are commonly used in the manufacturing of fire sprinkler systems due to their durability and fire resistance properties. These pipes serve as a reliable conduit for water or fire suppression agents to flow through, ensuring that the sprinkler system effectively extinguishes fires. The high strength of steel pipes allows for the construction of a robust and long-lasting system that can withstand high pressure and heat, making them an ideal choice for fire safety installations.
- Q:Are steel pipes affected by magnetic fields?
- Yes, steel pipes can be affected by magnetic fields. Steel is a ferromagnetic material, which means it is strongly attracted to magnets and can be magnetized. When exposed to a magnetic field, steel pipes can become magnetized, causing them to behave like magnets themselves. This magnetic effect can have several implications. First, if steel pipes are near strong magnetic fields, such as those generated by electrical currents or powerful magnets, they can experience a force that may cause them to move or vibrate. This can be problematic in certain applications, especially if the pipes need to remain stable and secure. Second, the presence of magnetic fields can induce electrical currents in steel pipes. These currents, known as eddy currents, can generate heat and energy losses. In some cases, this can lead to inefficiencies and increased energy consumption in systems that involve steel pipes. Lastly, magnetic fields can also affect the accuracy of magnetic measurement devices used to detect defects or corrosion in steel pipes. The presence of a magnetic field can interfere with the readings, making it more challenging to accurately assess the condition of the pipes. To mitigate these effects, various measures can be taken. For instance, in applications where stability is crucial, steel pipes can be shielded or isolated from strong magnetic fields using non-magnetic materials. Additionally, the impact of eddy currents can be minimized by using pipes with proper insulation or by using magnetic shielding techniques. Overall, while steel pipes are indeed affected by magnetic fields, the extent of the impact depends on factors such as the strength of the magnetic field, the composition of the steel, and the specific application or environment in which the pipes are used.
- Q:How are steel pipes used in tunnel construction?
- Steel pipes are commonly used in tunnel construction for various purposes. They are used to provide structural support by acting as reinforcements or casings for the tunnel walls. Steel pipes also serve as conduits for utilities such as water, gas, and electricity within the tunnel. Additionally, they can be used for ventilation and drainage systems, ensuring a safe and functional environment inside the tunnel. Overall, steel pipes play a crucial role in the construction and functionality of tunnels.
- Q:What is the impact of temperature on steel pipes?
- The impact of temperature on steel pipes is significant and can have both positive and negative effects. At high temperatures, steel pipes can experience thermal expansion, causing them to expand and potentially leading to distortion or buckling. This expansion can also affect the joints and connections, potentially causing leaks or failures. Therefore, it is crucial to consider the coefficient of thermal expansion when designing and installing steel pipes in high-temperature environments. On the other hand, steel pipes typically have excellent thermal conductivity, allowing them to withstand high temperatures without significant degradation. This makes them suitable for applications where heat transfer is a primary concern, such as in industrial processes or heating systems. Extreme cold temperatures can have detrimental effects on steel pipes as well. In freezing conditions, water or other fluids inside the pipes can expand and lead to cracks or bursts. This can cause leaks, loss of fluid, and potential damage to surrounding structures. Therefore, appropriate insulation and preventive measures need to be taken to ensure the integrity of steel pipes in cold environments. Additionally, temperature variations can also affect the mechanical properties of steel, such as its tensile strength and toughness. For instance, exposure to elevated temperatures over an extended period can lead to a phenomenon known as thermal degradation, where the steel's strength decreases, making it more prone to deformation or failure. In conclusion, the impact of temperature on steel pipes is significant and can influence their structural integrity, thermal performance, and mechanical properties. Proper design, insulation, and maintenance are essential to ensure the safe and efficient operation of steel pipes in various temperature conditions.
- Q:What are steel pipes used for?
- Steel pipes are commonly used for transporting fluids and gases, as well as for structural applications such as construction, oil and gas exploration, and plumbing systems.
- 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 for various purposes including cooling systems, steam generation, and containment of radioactive materials due to their high strength, durability, and resistance to corrosion.
- Q:What are the different methods of pipe insulation for steel pipes?
- There are several methods of pipe insulation for steel pipes, including foam insulation, fiberglass insulation, mineral wool insulation, and reflective insulation. Foam insulation is a popular choice as it provides excellent thermal insulation and is easy to install. Fiberglass insulation is another common option that offers good thermal and acoustic insulation properties. Mineral wool insulation is known for its fire resistance and is often used in high-temperature applications. Reflective insulation, on the other hand, utilizes a reflective surface to reduce heat transfer and is commonly used in hot climates.
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Square rectangular tubes for buildings
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 30 m.t.
- Supply Capability:
- 15000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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