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: How are steel pipes recycled at the end of their life cycle?
- Steel pipes are typically recycled at the end of their life cycle through a process called steel recycling. This involves collecting the used pipes, separating them from other materials, and then melting them down to be formed into new steel products. The recycling process not only helps conserve valuable resources but also reduces the need for new steel production, making it an environmentally sustainable solution.
- Q: How do you calculate the pipe volume flow rate for steel pipes?
- In order to determine the volume flow rate of steel pipes, one must take into account the diameter of the pipe and the velocity of the fluid. The formula utilized in this calculation is Q = A * V, where Q represents the volume flow rate, A denotes the cross-sectional area of the pipe, and V represents the fluid velocity. To initiate the process, the cross-sectional area of the pipe must be determined. In the case of a circular pipe, the formula A = π * r² can be employed, where A signifies the area and r denotes the radius of the pipe. If the diameter of the pipe is provided, dividing it by 2 will yield the radius. Subsequently, the fluid velocity must be established. This can be accomplished by directly measuring the velocity using a flowmeter or by calculating it based on the properties of the fluid and the pressure drop across the pipe using the Bernoulli equation or other suitable equations. Once the cross-sectional area and fluid velocity have been determined, they can be multiplied together to ascertain the volume flow rate. It is important to maintain consistent units throughout the calculation. For instance, if the area is expressed in square meters and the velocity is in meters per second, the resulting volume flow rate will be in cubic meters per second. It is worth noting that this calculation assumes the fluid to be incompressible and flowing steadily through the pipe. If there are alterations in the fluid properties or flow conditions, additional considerations may need to be taken into account in order to accurately calculate the volume flow rate.
- Q: Can steel pipes be used for solar power systems?
- Yes, steel pipes can be used for solar power systems. Steel pipes are commonly used for the construction of solar panel frames, mounting systems, and the support structures for solar thermal collectors. They provide durability, strength, and are resistant to weather conditions, making them suitable for various components of solar power systems.
- Q: Can steel pipes be bent?
- Steel pipes can indeed be bent. To achieve this, one usually employs specific tools and methods like pipe bending machines or hydraulic presses. These tools exert pressure on the pipe, leading it to change shape and adopt the desired angle or form. The flexibility of steel pipes makes them adaptable and appropriate for an array of purposes, such as plumbing, construction, and manufacturing. Nonetheless, it's crucial to acknowledge that the extent to which a steel pipe can be bent relies on factors like its diameter, wall thickness, and the type of steel employed.
- Q: Are steel pipes suitable for transporting gas?
- Yes, steel pipes are suitable for transporting gas. They have high strength and durability, making them capable of withstanding the pressure and stress involved in gas transportation. Additionally, steel pipes have excellent resistance to corrosion, ensuring the safety and integrity of the gas being transported.
- Q: What are the different grades of steel used in pipe manufacturing?
- The different grades of steel used in pipe manufacturing vary depending on the intended use and specific requirements. Some common grades include carbon steel (such as ASTM A106 or API 5L), alloy steel (such as ASTM A335), stainless steel (such as ASTM A312), and duplex steel (such as ASTM A790). These grades have different chemical compositions and mechanical properties to suit various applications in industries like oil and gas, construction, and plumbing.
- Q: Can steel pipes be used for transporting chemicals?
- Yes, steel pipes can be used for transporting chemicals. Steel pipes are known for their strength, durability, and resistance to corrosion, making them suitable for handling various chemicals. Additionally, steel pipes can withstand high pressure and temperature conditions, ensuring safe transportation of chemicals.
- Q: What are the different methods of lining steel pipes?
- There are several methods of lining steel pipes, including cement lining, epoxy lining, polyethylene lining, and bituminous lining. These methods are used to protect the inside surface of the steel pipes from corrosion, erosion, and other forms of damage, ensuring their longevity and optimal performance.
- Q: Can steel pipes be used for air conditioning systems?
- Yes, steel pipes can be used for air conditioning systems. Steel pipes are commonly used in HVAC systems, including air conditioning, due to their strength, durability, and resistance to corrosion. They are used to transport refrigerant and provide structural support for the system.
- Q: How do steel pipes perform in high-temperature applications?
- Steel pipes perform well in high-temperature applications due to their high thermal conductivity and excellent resistance to heat. They can withstand extreme temperatures without deformation or structural failure, making them suitable for transporting hot fluids or gases in industrial processes.
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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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