square rectangular pipe for steel structure
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 18000 m.t./month
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Specification
1、Structure of square rectangular pipe for steel structure:
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 pipe for steel structure:
• High manufacturing accuracy
• High strength
• Small inertia resistance
• Strong heat dissipation ability
• Good visual effect
• Reasonable price
3、 Square rectangular pipe for steel structure：
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 pipe for steel structure
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 pipe for steel structure Images：
- Q: How do steel pipes compare to ductile iron pipes?
- Steel pipes and ductile iron pipes are both commonly used in various applications, but they have some differences in terms of their properties and advantages. 1. Strength and Durability: Steel pipes are typically stronger and more durable than ductile iron pipes. Steel has a higher tensile strength, making it less susceptible to cracking or breaking under pressure or external forces. Ductile iron, on the other hand, has a lower tensile strength but has better impact resistance than steel. 2. Corrosion Resistance: Steel pipes are prone to corrosion, especially when exposed to moisture or chemicals. However, they can be protected by applying coatings or using corrosion-resistant alloys. Ductile iron pipes, while inherently more corrosion-resistant than regular cast iron, may still require external protection to prevent rusting and degradation. 3. Flexibility: Ductile iron pipes have greater flexibility than steel pipes. They can withstand certain degrees of bending and deflection without fracturing, making them suitable for applications where ground movement or shifting might occur. Steel pipes are less flexible and more rigid, making them better suited for straight runs or applications with minimal movement. 4. Cost: Generally, ductile iron pipes are more cost-effective than steel pipes. Ductile iron is easier and cheaper to manufacture, resulting in lower production costs. However, steel pipes may have a longer lifespan, requiring fewer replacements over time, which can offset the initial cost difference. 5. Installation: Steel pipes are lighter and easier to handle during installation compared to ductile iron pipes, which can be heavy and bulky. The lighter weight of steel pipes can reduce labor and transportation costs. Additionally, steel pipes can be welded, allowing for more flexible installation options, while ductile iron pipes are typically joined using mechanical couplings or flanged connections. In summary, steel pipes offer superior strength and durability, while ductile iron pipes provide better flexibility and cost-effectiveness. The choice between the two depends on the specific requirements of the application, including factors such as corrosion resistance, expected loads, installation conditions, and budget constraints.
- Q: What are the advantages of using steel pipes over other materials?
- There are several advantages of using steel pipes over other materials: 1. Strength and Durability: Steel pipes are known for their exceptional strength and durability. They can withstand high pressure, heavy loads, and extreme weather conditions, making them suitable for various applications, including transportation of fluids and gases, structural support, and underground pipelines. 2. Corrosion Resistance: Steel pipes can be coated with different materials to enhance their resistance to corrosion. This makes them suitable for transporting water, chemicals, and other corrosive substances without the risk of pipe degradation. Additionally, steel pipes are less susceptible to rust, which prolongs their lifespan. 3. Cost-effectiveness: Although steel pipes may have a higher upfront cost compared to other materials, they offer long-term cost-effectiveness. Due to their durability and resistance to corrosion, steel pipes require less maintenance and replacement, resulting in reduced operational costs over time. 4. Versatility: Steel pipes come in various sizes, shapes, and thicknesses, making them versatile for different applications. They can be easily customized and fabricated to meet specific requirements, such as bending, welding, and threading. 5. Fire Resistance: Steel pipes have a high melting point, making them resistant to fire and reducing the risk of structural damage during a fire incident. This characteristic is particularly important in industries where fire safety is crucial, such as oil and gas, chemical, and construction. 6. Eco-friendly: Steel is a recyclable material, and steel pipes can be recycled and reused multiple times without compromising their quality. This not only reduces the demand for new materials but also contributes to environmental sustainability. 7. Excellent Flow Characteristics: Steel pipes provide smooth internal surfaces, minimizing friction and allowing for efficient flow of fluids and gases. This advantage is particularly significant in industries where fluid dynamics and energy efficiency are essential, such as oil and gas, water supply, and HVAC systems. In conclusion, steel pipes offer numerous advantages over other materials, including strength, durability, corrosion resistance, cost-effectiveness, versatility, fire resistance, eco-friendliness, and excellent flow characteristics. These advantages make steel pipes the preferred choice for a wide range of applications in various industries.
- Q: What is the difference between steel pipes and plastic pipes?
- Steel pipes are made from a strong and durable metal, while plastic pipes are made from synthetic materials like PVC or polyethylene. Steel pipes are typically used for high-pressure applications and in areas where strength and durability are key factors. On the other hand, plastic pipes are more lightweight, corrosion-resistant, and easier to install. They are commonly used for low-pressure applications and in areas where chemical resistance is important.
- Q: How are steel pipes tested for leakage?
- Steel pipes are tested for leakage through various methods, including hydrostatic testing and ultrasonic testing. In hydrostatic testing, the pipes are filled with water under high pressure to check for any leaks or weaknesses in the welds or seams. Ultrasonic testing involves using high-frequency sound waves to detect any defects or cracks in the pipes. Both methods are effective in ensuring the integrity and leak-free performance of steel pipes.
- Q: Are steel pipes suitable for hydronic heating systems?
- Yes, steel pipes are suitable for hydronic heating systems. Steel pipes are known for their durability, strength, and resistance to high temperatures and pressure, making them an excellent choice for circulating hot water in hydronic heating systems. They can effectively handle the demands of heating systems and provide reliable and long-lasting performance.
- Q: What is the purpose of galvanizing steel pipes?
- The purpose of galvanizing steel pipes is to provide corrosion resistance and extend their lifespan.
- 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 safety measures to consider when working with steel pipes?
- When working with steel pipes, it is important to consider several safety measures. Firstly, wearing appropriate personal protective equipment (PPE) such as gloves, safety glasses, and steel-toed boots is crucial to protect against potential injuries. Secondly, ensuring proper ventilation in the work area is important to avoid inhalation of harmful gases or fumes. Additionally, practicing proper lifting techniques and using mechanical aids when handling heavy pipes can prevent strains or back injuries. It is also essential to be cautious of sharp edges or protruding objects on the pipes and to secure them properly to prevent accidents. Lastly, following established safety protocols, such as conducting regular inspections and adhering to lockout/tagout procedures, helps minimize the risk of accidents or equipment malfunctions.
- Q: What are the common methods for inspecting the condition of steel pipes?
- Some common methods for inspecting the condition of steel pipes include visual inspection, ultrasonic testing, magnetic particle inspection, dye penetrant inspection, and radiographic testing.
- Q: How to make the internal tooth of the steel pipe?
- Compared with the ordinary light pipe, tube can effectively prevent the formation of steam film between the seal and the pipe wall, increase the light disturbance flow inside the tube, the tube wall temperature is more uniform, which can avoid the light pipe damage, and improve the heat transfer efficiency of boiler. The number of thread head of internal thread pipe is 4, 6 head and 8 head according to need. The main materials are 20G, SA210C, T2, T12, 12Cr1MoVG, 15CrMoG, T22, T23 and so on. China needs 2.5~3.0 tons per year of inner thread tube.
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square rectangular pipe for steel structure
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 18000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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