Square rectangular tube for multi variety of engineering construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 15 m.t.
- Supply Capability:
- 17000 m.t./month
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1、Structure of Square rectangular tube for multi variety of engineering construction:
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 multi variety of engineering construction:
• High manufacturing accuracy
• High strength
• Small inertia resistance
• Strong heat dissipation ability
• Good visual effect
• Reasonable price
3、 Square rectangular tube for multi variety of engineering constructionSpecification：
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、FAQ of Square rectangular tube for multi variety of engineering construction:
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 tube for multi variety of engineering construction Images：
- Q: How much is 4 inches steel tube MM?
- 1 inches =25.4 mm;4 inches =101.6 mm;The specification of steel pipe is usually nominal size;
- Q: Can steel pipes be used for oil and gas transportation?
- Yes, steel pipes can be used for oil and gas transportation. Steel pipes are widely utilized in the oil and gas industry due to their strength, durability, and ability to handle high-pressure conditions. They are commonly used for transporting crude oil, natural gas, and their derivatives over long distances. Steel pipes have excellent resistance to corrosion and can withstand extreme temperatures, making them suitable for both onshore and offshore applications. Additionally, steel pipes can be easily welded, allowing for the construction of complex pipeline networks that efficiently transport oil and gas from production fields to refineries and distribution centers.
- Q: How do you calculate the pipe pressure drop for steel pipes?
- To calculate the pipe pressure drop for steel pipes, you can use the Darcy-Weisbach equation or the Hazen-Williams equation. The Darcy-Weisbach equation is generally more accurate but requires more information. It takes into account the pipe diameter, length, roughness, fluid flow rate, and fluid properties such as viscosity and density. The equation is as follows: ΔP = (f * L * ρ * V^2) / (2 * D) Where: ΔP is the pressure drop f is the friction factor (which can be determined using Moody's chart or by using empirical equations such as the Colebrook-White equation) L is the pipe length ρ is the fluid density V is the fluid velocity D is the pipe diameter The Hazen-Williams equation is a simplified version that is commonly used for water flow calculations. It is less accurate but easier to use. The equation is as follows: ΔP = K * Q^1.85 / (C^1.85 * d^4.87) Where: ΔP is the pressure drop K is the Hazen-Williams coefficient (which depends on the pipe material and roughness) Q is the flow rate C is the Hazen-Williams roughness coefficient d is the pipe diameter It's important to note that these equations provide an estimate of the pressure drop, and actual conditions may vary due to factors such as fittings, bends, and valves in the pipe system. Additionally, it's crucial to ensure that the units used in the equations are consistent (e.g., using SI units or US customary units).
- Q: What is the difference between steel pipes and cast iron pipes?
- The main difference between steel pipes and cast iron pipes is the material they are made of. Steel pipes are made from an alloy of iron and carbon, making them stronger and more durable. On the other hand, cast iron pipes are made solely from iron, which makes them more brittle and prone to cracks. Additionally, steel pipes have a smoother interior surface, allowing for better water flow and reducing the chance of clogs. Cast iron pipes, on the other hand, have a rougher interior surface and are more susceptible to corrosion. Overall, steel pipes are typically preferred for their strength and longevity, while cast iron pipes may be used in specific applications where their unique properties are advantageous.
- Q: Can steel pipes be used for conveying slurry and slurries?
- Yes, steel pipes can be used for conveying slurry and slurries. Steel pipes are known for their durability, high strength, and resistance to wear and corrosion, making them suitable for transporting abrasive materials like slurry. Additionally, steel pipes can handle high pressures and temperatures, making them reliable for conveying slurries in various industries such as mining, construction, and wastewater treatment.
- Q: What are the different methods of pipe welding for steel pipes?
- There are several methods of pipe welding for steel pipes, including Shielded Metal Arc Welding (SMAW), Gas Metal Arc Welding (GMAW), Flux-Cored Arc Welding (FCAW), Submerged Arc Welding (SAW), and Tungsten Inert Gas Welding (TIG). Each method has its own advantages and is used depending on the specific requirements of the project, such as the thickness of the pipe, the type of steel, and the desired weld quality.
- Q: Is the diameter of the steel tube indicated by the outer diameter by the wall thickness or by the inside diameter by the wall thickness?
- For seamless steel pipes or nonferrous metal pipes, the outer diameter * wall thickness shall be marked".For example, 108 x 4 phi, Phi can be omitted. Some steel tubes in China, ISO and Japan adopt wall thickness to indicate the thickness of steel pipe. The method for the specification of such steel tubes is pipe outer diameter * wall thickness. For example, Phi 60.5 * 3.8.
- Q: What industries typically use steel pipes?
- Steel pipes find widespread use across various industries due to their durability, strength, and versatility. Some of the sectors that typically employ steel pipes include: 1. Construction: Steel pipes are extensively utilized in the construction industry for diverse purposes like structural support, plumbing, and underground piping systems. They are commonly seen 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 employed 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 essential for sewage and stormwater management. 4. Manufacturing: Various manufacturing industries employ steel pipes for specific applications. For example, automobile manufacturers use steel pipes in exhaust systems, fuel lines, and hydraulic systems. Steel pipes are also utilized in the production of machinery, equipment, and appliances. 5. Mining: The mining industry requires robust and enduring materials for its operations. Steel pipes are used in mining applications such as conveying materials, ventilation systems, and underground infrastructure. They prove particularly useful in transporting minerals, ores, and other mining byproducts. 6. Energy and power: Steel pipes find extensive use in power generation facilities, including thermal power plants, nuclear power plants, and renewable energy installations. They are employed in steam pipelines, cooling systems, and heat exchangers. Steel pipes are also used 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 also play a role in the transportation of fluids and gases, such as in natural gas or petroleum product pipelines. Overall, the versatility and dependability of steel pipes make them indispensable in a wide range of industries, contributing to various aspects of our modern infrastructure and daily lives.
- Q: 45 and 316 which steel tubes are of high hardness?
- This depends on the heat treatment state, if 45 steel, 314 stainless steel without heat treatment, 316 stainless steel hardness, if the heat treatment, that is 45 steel hardness.
- Q: How do you prevent leaks in steel pipes?
- One way to prevent leaks in steel pipes is by applying a protective coating or lining to the interior surface of the pipes. This can help to prevent corrosion and deterioration, which are common causes of leaks in steel pipes. Additionally, regular inspection and maintenance of the pipes, including checking for signs of damage or wear, can help to identify and address potential leaks before they become a problem.
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Square rectangular tube for multi variety of engineering construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 15 m.t.
- Supply Capability:
- 17000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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