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:Are steel pipes suitable for underground mining operations?
- Yes, steel pipes are suitable for underground mining operations. Steel pipes are known for their durability, strength, and resistance to corrosion, making them ideal for use in harsh underground mining environments. They can withstand high pressure and are capable of transporting various substances, such as water, air, or mining materials, with reliability and efficiency. Additionally, steel pipes can be customized to meet specific mining requirements, ensuring their suitability for underground operations.
- Q:How are steel pipes protected against rust and corrosion?
- Steel pipes are protected against rust and corrosion through various methods such as applying protective coatings like zinc or epoxy, using cathodic protection techniques, or by utilizing stainless steel pipes that have inherent resistance to rust and corrosion. Additionally, regular maintenance and inspections help to identify and address any potential corrosion issues early on.
- Q:What are the uses of welded steel pipes?
- The spiral submerged arc welded pipe (SY5036-83) for the delivery of pressurized fluid is made of hot rolled steel strips for tube billets, often spirally formed, welded by double submerged arc welding and used for the transmission of pressurized fluid. The steel pipe has strong pressure bearing ability and good welding performance. After a rigorous scientific examination and test, it can be used safely. The utility model has the advantages of large caliber of the steel pipe, high transmission efficiency, and investment in laying pipelines. Mainly used in the transportation of petroleum and natural gas pipelines.
- Q:How are steel pipes tested for leaks?
- Steel pipes can be tested for leaks using various methods, including hydrostatic testing, pneumatic testing, and using leak detection equipment such as ultrasonic testing or helium testing.
- Q:How do you measure the thickness of steel pipes?
- There are several methods available for measuring the thickness of steel pipes, depending on the desired level of accuracy. One commonly utilized technique is ultrasonic measurement. This involves employing an ultrasonic thickness gauge, which emits high-frequency sound waves that travel through the walls of the pipe and reflect back to the gauge. By calculating the time it takes for the sound waves to travel and return, an accurate measurement of the thickness can be obtained. This method is non-destructive and can be applied to both ferrous and non-ferrous materials. Alternatively, calipers or micrometers can be used for measurement. This entails manually measuring the outer diameter (OD) and inner diameter (ID) of the pipe, and then subtracting the ID from the OD to determine the thickness. However, it should be noted that this method is less precise compared to ultrasonic measurement. In cases where extreme precision is not necessary, a simple tape measure or ruler can be employed to measure the outer diameter of the pipe. The thickness can then be estimated by referring to standard pipe thickness charts or tables. It is essential to emphasize the significance of accurately measuring the thickness of steel pipes in various applications, such as construction, manufacturing, and engineering. Consequently, it is advisable to utilize suitable measuring tools and techniques to ensure precise results.
- Q:What is the role of steel pipes in the chemical manufacturing industry?
- Steel pipes play a crucial role in the chemical manufacturing industry as they are widely used for transporting various chemicals, gases, and liquids. These pipes are highly durable, resistant to corrosion, and can withstand high temperatures and pressures, making them ideal for handling hazardous substances. Additionally, steel pipes ensure the integrity and safety of the chemical manufacturing process by preventing leaks, contamination, and loss of product.
- 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:How do you prevent steel pipes from freezing in cold climates?
- One way to prevent steel pipes from freezing in cold climates is by insulating them. Insulation materials such as foam or fiberglass can be wrapped around the pipes to prevent heat loss and keep them at a stable temperature. Additionally, using heat tape or cables can provide an extra layer of protection by applying low-level heat to the pipes. It is also important to ensure that pipes are properly sealed and any cracks or gaps are sealed to prevent cold air from entering and freezing the pipes.
- Q:Can steel pipes be bent or curved?
- Yes, steel pipes can be bent or curved.
- Q:What are the different end finishes for steel pipes?
- There are several different end finishes for steel pipes, depending on their intended use and the specific requirements of the application. Some of the most common end finishes for steel pipes include: 1. Plain End: This is the simplest and most common type of end finish, where the pipe is cut square at both ends without any additional treatment or threading. Plain end pipes are typically used for low-pressure applications or when the pipe will be connected using welding methods. 2. Beveled End: A beveled end finish involves cutting the pipe at an angle, usually 30 or 37.5 degrees, to facilitate easier welding and create a stronger joint. Beveled end pipes are commonly used for butt-welding applications, where two pipes are joined together by aligning the beveled ends and welding them. 3. Threaded End: In this end finish, the pipe is threaded at both ends to allow for easy connection with threaded fittings or couplings. Threaded end pipes are commonly used in plumbing and gas distribution systems, as well as for applications that require frequent disassembly and reassembly. 4. Coupled End: Coupled end finishes involve the installation of couplings or connectors at each end of the pipe. This allows for quick and easy connection of pipes without the need for additional threading or welding. Coupled end pipes are often used in oil and gas pipelines or in applications where rapid installation is required. 5. Grooved End: A grooved end finish involves cutting grooves into the pipe's ends and using mechanical couplings or fittings to join the pipes together. This type of end finish is commonly used in fire protection systems, as well as for large-diameter pipes that require quick and efficient assembly. 6. Flanged End: Flanged end finishes involve attaching flanges to the pipe ends, which can be bolted together to create a secure and leak-proof connection. Flanged end pipes are commonly used in applications that require easy disassembly and reassembly, such as in chemical plants or refineries. It is important to note that the choice of end finish for a steel pipe depends on factors such as the application, the required joint strength, the type of connection method, and the compatibility with other system components. Consulting with a professional or referring to industry standards is recommended to ensure the correct end finish is selected for a specific application.
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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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