Cold bending square rectangular pipe for building
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 20 pc
- Supply Capability:
- 10000 pc/month
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1、Structure of Cold bending square rectangular pipe for building
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 Cold bending square rectangular pipe for building :
• High manufacturing accuracy
• High strength
• Small inertia resistance
• Strong heat dissipation ability
• Good visual effect
• Reasonable price
3、Cold bending square rectangular pipe for building 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.
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 Cold bending square rectangular pipe for building
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、Cold bending square rectangular pipe for building Images：
- Q:How do you transport and store steel pipes?
- Steel pipes are typically transported using trucks, railcars, or ships. They are stored in designated areas or warehouses, either vertically or horizontally depending on their size and weight. It is important to ensure proper packaging, lifting equipment, and securing methods during transport to prevent damage or accidents. Additionally, storing steel pipes in dry, well-ventilated areas away from moisture and corrosive substances helps maintain their quality and longevity.
- Q:How are steel pipes measured and categorized?
- Typically, steel pipes are measured and categorized by their outer diameter, wall thickness, and length. The outer diameter represents the width of the pipe when viewed from the side, while the wall thickness refers to how thick the pipe's walls are. These measurements are usually given in millimeters or inches. Categorizing steel pipes is done based on their purpose and specifications. The most common way to categorize them is by their pressure rating, which determines their ability to handle different levels of internal or external pressure. Pipes are divided into different pressure classes, like Schedule 40, Schedule 80, and Schedule 160, to name a few. The higher the pressure class, the thicker and stronger the pipe is. Steel pipes can also be categorized according to their manufacturing process and material composition. For instance, seamless steel pipes are created by piercing a solid steel bar to create a hollow tube, while welded steel pipes are made by rolling and welding a flat steel sheet or strip into a cylindrical shape. Additionally, steel pipes can be classified based on their material composition, such as carbon steel pipes, stainless steel pipes, or alloy steel pipes. Another way to categorize steel pipes is by their end connections or fittings. Common types of pipe ends include threaded ends, which are suitable for attaching fittings by screwing them onto the pipe, and plain ends, which are typically used for welding or flanging connections. In conclusion, the measurement and categorization of steel pipes are crucial for ensuring the proper selection and usage of these pipes in various industries, including construction, oil and gas, plumbing, and manufacturing.
- Q:What is the difference between cast iron and steel pipes?
- Cast iron pipes and steel pipes are commonly used in plumbing and construction, but they have distinct differences. Let's explore these disparities. 1. Composition: Cast iron pipes consist mainly of an iron alloy, with small amounts of carbon and other elements. Conversely, steel pipes are primarily composed of iron, but they also contain varying amounts of carbon and other alloying elements like manganese, chromium, and nickel. 2. Strength: Steel pipes generally surpass cast iron pipes in strength due to their higher carbon content and alloying elements. This makes steel pipes more suitable for high-pressure applications or areas with heavy loads. 3. Flexibility: Compared to cast iron pipes, steel pipes offer more flexibility, making installation and adjustment easier. Cast iron pipes, being brittle, are less flexible and more prone to cracking or breaking under excessive stress or impact. 4. Corrosion resistance: Steel pipes are usually more prone to corrosion than cast iron pipes. However, this can be mitigated with various protective coatings or treatments applied to the steel pipes. Cast iron pipes, on the other hand, possess inherent corrosion resistance due to the formation of a protective layer of rust on their surface. 5. Noise insulation: Cast iron pipes excel in noise insulation due to their dense and heavy composition. This makes them ideal for reducing noise in residential plumbing systems. Steel pipes, being lighter and less dense, do not offer the same level of noise insulation. 6. Longevity: When properly maintained, cast iron pipes have a lifespan of over 100 years. Steel pipes, while still durable, may have a shorter lifespan depending on factors like the quality of the steel used, environmental conditions, and maintenance practices. In conclusion, the primary differences between cast iron and steel pipes lie in their composition, strength, flexibility, corrosion resistance, noise insulation, and longevity. The choice between the two depends on specific requirements, such as desired strength, durability, and noise reduction properties.
- Q:Can steel pipes be used for underground gas distribution?
- Indeed, underground gas distribution can make use of steel pipes. Within the gas industry, steel pipes are widely employed due to their exceptional strength, durability, and resistance to corrosion. These pipes possess the capacity to endure the pressure and stress inherent in gas distribution systems. Moreover, steel pipes have demonstrated their reliability and safety as a means of transporting natural gas below ground. Nevertheless, it is crucial to ensure that these steel pipes are adequately coated and shielded against corrosion in order to preserve their integrity and prolong their lifespan. Consistent inspections and maintenance procedures are also imperative to detect and rectify any potential problems that may arise.
- Q:How are steel pipes used in the chemical processing industry?
- Steel pipes are used extensively in the chemical processing industry as they offer superior strength, durability, and resistance to corrosion. These pipes are used to transport various chemicals, including acids, alkalis, and solvents, throughout the processing plants. They are also utilized for conveying gases, steam, and liquids under high pressure and temperature conditions. Furthermore, steel pipes are employed in the construction of chemical reactors, heat exchangers, and storage tanks, ensuring the safe and efficient operation of chemical processes.
- Q:When can I use the PVC pipe and when to use the galvanized pipe?
- Galvanized pipes are generally used outside the drying environment or building blocks, and PVC is mainly used for pre embedding in walls or humid environments. If in the ceiling ceiling, below the roof, you need to use galvanized pipe, in the floor below, on the ground you need to use PVC.
- Q:How do you calculate the stress in a steel pipe?
- To calculate the stress in a steel pipe, you need to consider the material properties of the steel and the external forces acting on the pipe. The stress in a pipe is typically calculated using the formula: Stress = Force / Area First, you need to determine the force acting on the pipe. This could be due to external loads such as pressure, weight, or mechanical forces. You can calculate the force by multiplying the pressure or weight by the surface area on which it acts. For example, if the pipe is subjected to an internal pressure, you can calculate the force using the formula: Force = Pressure x Area Next, you need to determine the cross-sectional area of the pipe. The cross-sectional area of a circular pipe can be calculated using the formula: Area = π x (Diameter / 2)^2 Once you have determined the force and the area, you can calculate the stress by dividing the force by the area. This will give you the stress value in units such as pounds per square inch (psi) or newtons per square meter (Pa). It is important to note that the stress calculation assumes that the pipe is in a state of equilibrium and that the material properties of the steel are known. The material properties, such as yield strength and ultimate tensile strength, are used to ensure that the stress calculated does not exceed the maximum capacity of the steel.
- Q:What is the role of steel pipes in sewage systems?
- Steel pipes play a crucial role in sewage systems as they are used to transport wastewater and sewage from various sources to treatment plants or disposal areas. Their strength, durability, and resistance to corrosion make them ideal for handling the often harsh and corrosive nature of sewage. Additionally, steel pipes can withstand high pressures and provide a reliable and long-lasting solution for sewage transportation, ensuring the efficient and safe functioning of sewage systems.
- Q:How do you measure the thickness of a steel pipe?
- There are several ways to measure the thickness of a steel pipe. One common method is to use a specialized tool called a caliper or micrometer. This tool allows you to precisely measure the diameter of the pipe at various points, and by subtracting the inner diameter from the outer diameter, you can determine the thickness. Another approach is to use an ultrasonic thickness gauge, which uses sound waves to measure the thickness of the pipe. This non-destructive testing method is particularly useful for pipes that are already installed or are difficult to access. Additionally, you can also use a magnetic or eddy current thickness gauge, which relies on the principle of magnetism or electromagnetic induction to measure the thickness of the pipe.
- Q:Can steel pipes be used for oil transportation?
- Yes, steel pipes can be used for oil transportation. Steel pipes are commonly used in the oil and gas industry for the transportation of crude oil, petroleum products, and natural gas. They are preferred due to their strength, durability, and resistance to corrosion. Steel pipes are capable of withstanding high-pressure environments and can be used for both onshore and offshore oil transportation. Additionally, steel pipes can be welded together to form long pipelines, making them a cost-effective solution for transporting oil over long distances. Overall, steel pipes are a reliable and efficient choice for oil transportation.
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Cold bending square rectangular pipe for building
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 20 pc
- Supply Capability:
- 10000 pc/month
OKorder Service Pledge
OKorder Financial Service
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