Square rectangular tube for building structure Q235/Q345
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 1000 m.t./month
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1、Structure of Square rectangular tube for building structure Q235/Q345 :
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、Main Features of Square rectangular tube for building structure Q235/Q345 :
• Small inertia resistance
• Strong heat dissipation ability
• Good visual effect
• Reasonable price
3、Square rectangular tube for building structure Q235/Q345 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.
4、Packaging & Delivery
Packaging Details: | seaworthy package,bundles wrapped with strong steel strip |
Delivery Detail: | 15-30days after received 30%TT |
5、FAQ of Square rectangular tube for building structure Q235/Q345 :
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.
6、Square rectangular tube for building structure Q235/Q345 Images：
- Q:What are the different types of gaskets used with steel pipes?
- There are several types of gaskets commonly used with steel pipes, including ring type joint (RTJ) gaskets, spiral wound gaskets, and flat gaskets. RTJ gaskets are designed to create a tight seal by compressing between two flanges, while spiral wound gaskets consist of a metal winding and filler material for enhanced sealing properties. Flat gaskets are typically made from rubber or non-metallic materials and are used for lower pressure applications.
- Q:Are steel pipes suitable for underground installations in areas with high moisture content?
- Steel pipes are generally suitable for underground installations in areas with high moisture content. However, there are certain factors to consider when using steel pipes in such conditions. Corrosion is a major concern when steel pipes are exposed to moisture for extended periods. To mitigate this risk, it is important to use steel pipes that are specifically designed for underground installations and are coated with protective materials such as epoxy or polyethylene. These coatings act as a barrier between the steel and the surrounding moisture, preventing corrosion and extending the lifespan of the pipes. Additionally, proper installation techniques, including adequate pipe bedding and backfilling, should be followed to ensure the pipes are properly supported and protected from external forces. Regular inspection and maintenance are also recommended to identify any signs of corrosion or damage and address them promptly. Overall, with the right precautions and maintenance, steel pipes can be a suitable choice for underground installations in areas with high moisture content.
- Q:What is the composition of steel pipes?
- Steel pipes are primarily composed of iron and carbon, with small amounts of other elements such as manganese, silicon, and sulfur.
- Q:Difference between seamless steel pipe and welded pipe
- Welded steel pipe for different welding process and divided into the furnace pipe welding (ERW) pipe and automatic arc welding, because of the different forms of welding seam welded pipe and spiral welded pipe is divided into two kinds, end its shape is divided into circular welded and shaped (square) pipe etc..
- Q:What industries typically use steel pipes?
- Steel pipes are widely used in various industries due to their durability, strength, and versatility. Some of the industries that typically utilize steel pipes include: 1. Construction: Steel pipes are extensively used in the construction industry for various applications such as structural support, plumbing, and underground piping systems. They are commonly used in commercial buildings, residential structures, bridges, and tunnels. 2. Oil and gas: The oil and gas industry heavily relies on steel pipes for drilling, transporting, and distributing oil and gas. Steel pipes are used in offshore drilling rigs, oil refineries, natural gas processing plants, and pipelines to ensure the safe and efficient transport of these valuable resources. 3. Water and wastewater: Steel pipes play a crucial role in providing clean water supply and managing wastewater. They are used in water treatment plants, desalination facilities, and municipal water distribution systems. Steel pipes are also utilized for sewage and stormwater management. 4. Manufacturing: Various manufacturing industries employ steel pipes for specific applications. For instance, automobile manufacturers use steel pipes in exhaust systems, fuel lines, and hydraulic systems. Steel pipes are also used in the manufacturing of machinery, equipment, and appliances. 5. Mining: The mining industry requires strong and durable materials for its operations. Steel pipes are used in mining applications such as conveying materials, ventilation systems, and underground infrastructure. They are particularly useful in transporting minerals, ores, and other mining byproducts. 6. Energy and power: Steel pipes are extensively used in power generation facilities, including thermal power plants, nuclear power plants, and renewable energy installations. They are utilized in steam pipelines, cooling systems, and heat exchangers. Steel pipes are also employed in the construction of transmission lines for electricity distribution. 7. Infrastructure and transportation: Steel pipes are essential for infrastructure development and transportation systems. They are used in the construction of roads, bridges, railways, and airports. Steel pipes are also utilized in the transportation of fluids and gases, such as in pipelines for natural gas or petroleum products. Overall, the versatility and reliability of steel pipes make them indispensable in a wide range of industries, contributing to various aspects of our modern infrastructure and daily lives.
- Q:How are steel pipes tested for quality and strength?
- Steel pipes are tested for quality and strength through various methods, including destructive and non-destructive testing. Destructive testing involves subjecting the pipes to extreme forces, such as tension, compression, and bending, to determine their mechanical properties and structural integrity. Non-destructive testing methods, such as ultrasonic testing, magnetic particle testing, and radiographic testing, are used to detect any defects or inconsistencies in the pipes without causing damage. These rigorous testing procedures ensure that steel pipes meet the required quality and strength standards before being used in various applications.
- Q:What are the different grades of steel used in manufacturing pipes?
- There are several grades of steel used in manufacturing pipes, including carbon steel, alloy steel, stainless steel, and duplex steel. Each grade has distinct properties and characteristics that make it suitable for different applications and environments.
- Q:What are the common welding techniques used for steel pipes?
- The common welding techniques used for steel pipes include shielded metal arc welding (SMAW), gas metal arc welding (GMAW), flux-cored arc welding (FCAW), and submerged arc welding (SAW).
- Q:Is hot dipped plastic pipe steel?
- The hot dipped plastic steel pipe is a steel pipe, and it is made of special antiseptic treated composite steel pipe.
- 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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Square rectangular tube for building structure Q235/Q345
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 20 m.t.
- Supply Capability:
- 1000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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