Welded square tube for building structure
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 15 m.t.
- Supply Capability:
- 15000 m.t./month
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1、Structure of Welded square tube for building 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 Welded square tube for building structure
• High manufacturing accuracy
• High strength
• Small inertia resistance
• Strong heat dissipation ability
• Good visual effect
• Reasonable price
3、 Welded square tube for building structure 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 Welded square tube for building 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、 Welded square tube for building structure Images：
- Q: Can steel pipes be used for the construction of offshore platforms?
- Yes, steel pipes can be used for the construction of offshore platforms. Steel pipes are commonly used in offshore construction due to their high strength, durability, and resistance to corrosion in harsh marine environments. They are suitable for various applications, including the fabrication of jacket legs, risers, pile sleeves, and other structural components necessary for offshore platform construction.
- Q: How are steel pipes used in LNG terminals?
- Steel pipes are used in LNG terminals to transport liquefied natural gas from storage tanks to processing facilities or to ships for export. These pipes are highly durable and can withstand the extreme cold temperatures of LNG, ensuring safe and efficient transportation of this valuable energy resource.
- Q: How are steel pipes resistant to corrosion?
- Steel pipes are resistant to corrosion due to a combination of factors. Firstly, steel pipes are often coated with a protective layer, such as zinc or epoxy, which acts as a barrier between the steel and the surrounding environment. This coating prevents moisture and other corrosive substances from coming into contact with the steel, reducing the chances of corrosion. Additionally, the composition of steel itself plays a role in its corrosion resistance. Steel is primarily made up of iron, with small amounts of other elements added to enhance its strength and durability. These elements, such as chromium and nickel, create a protective oxide layer on the surface of the steel. This oxide layer acts as a natural barrier, preventing the underlying steel from being exposed to moisture and oxygen, which are key contributors to corrosion. Furthermore, steel pipes can be treated through a process called galvanization, where a layer of zinc is applied to the surface. This zinc coating provides an extra layer of protection against corrosion, as zinc is highly resistant to rust and oxidation. The zinc sacrificially corrodes instead of the steel, further extending the lifespan of the pipe. Overall, the combination of protective coatings, the composition of steel, and galvanization processes all contribute to the corrosion resistance of steel pipes. This makes them highly durable and suitable for various applications, including plumbing, construction, and transportation of fluids and gases.
- Q: How are steel pipes used in the automotive exhaust systems?
- Steel pipes are commonly used in automotive exhaust systems because steel is a durable and heat-resistant material. Steel pipes are used to transport the exhaust gases from the engine to the muffler and tailpipe, ensuring that the gases are safely and efficiently expelled from the vehicle. These pipes are designed to withstand high temperatures, corrosion, and vibration, making them an essential component in the exhaust system.
- Q: Can steel pipes be used for irrigation systems?
- Yes, steel pipes can be used for irrigation systems. They are strong, durable, and resistant to corrosion, making them suitable for transporting water and withstanding outdoor conditions. However, it is important to ensure proper insulation and maintenance to prevent any potential rust or degradation.
- Q: How are steel pipes used in the manufacturing of railways?
- Steel pipes are used in various ways in the manufacturing of railways. One of the primary uses of steel pipes in this context is for the construction of the railway track itself. Steel pipes are used to create the rail tracks that form the foundation of the railways. These pipes are typically welded together to form long, sturdy tracks that can withstand the weight and pressure of trains passing over them. Steel pipes are also used in the manufacturing of railway bridges and tunnels. These structures require strong and durable materials to ensure the safety and stability of the railway system. Steel pipes are often used in the construction of the support structures or piers that hold up the bridges. They are also used in the creation of tunnels, providing structural support and stability. Additionally, steel pipes are used in the manufacturing of various railway components and equipment. For example, steel pipes are used in the fabrication of railway signaling systems, which are responsible for controlling the movement of trains and ensuring safety. These pipes are often used to house and protect the electrical wiring and other components of the signaling systems. Furthermore, steel pipes are used in the manufacturing of railway carriages and locomotives. These pipes are used to create the framework and structure of the train, providing strength and stability. They are also used for various other purposes, such as the creation of air conditioning systems, brake systems, and fuel delivery systems within the train. Overall, steel pipes play a crucial role in the manufacturing of railways. They are used for the construction of rail tracks, bridges, tunnels, and various railway components and equipment. The strength and durability of steel make it an ideal material for ensuring the safety and efficiency of railway systems.
- Q: How are steel pipes tested for quality and strength?
- Steel pipes are tested for quality and strength through various methods, including destructive and non-destructive testing. Destructive tests involve subjecting samples to extreme conditions such as tension, compression, or bending to assess their mechanical properties. Non-destructive tests, on the other hand, utilize techniques like ultrasonic inspection, magnetic particle testing, and radiographic examination to detect any defects or anomalies without damaging the pipes. These rigorous testing procedures ensure that steel pipes meet the required standards and can withstand the intended applications.
- Q: What is the difference between API 5L and ASTM A106 steel pipes?
- Seamless carbon steel pipe is commonly specified under two widely used specifications: API 5L and ASTM A106. These specifications cover similar materials but have different criteria in terms of chemical composition, manufacturing processes, mechanical properties, and testing. API 5L, created by the American Petroleum Institute (API), is designed for line pipe used in oil and gas transportation. It applies to both seamless and welded steel pipes suitable for conveying gas, water, and oil in the natural gas and petroleum industries. API 5L outlines the minimum requirements for manufacturing two product specification levels (PSL 1 and PSL 2) of seamless and welded steel pipes, which have varying chemical composition and mechanical properties. In contrast, ASTM A106, developed by the American Society for Testing and Materials (ASTM), is specifically for seamless carbon steel pipe used in high-temperature service. It covers seamless carbon steel pipe with nominal wall thickness as specified in ANSI B36.10, ranging from NPS 1/8" to NPS 48". ASTM A106 provides guidelines for chemical composition, manufacturing processes, mechanical properties, and testing. A significant distinction between API 5L and ASTM A106 lies in the intended application of the pipe. API 5L is designed for the transmission of liquid and gas, while ASTM A106 is used in high-temperature service. Moreover, the chemical composition and mechanical properties of the steel may differ between the two specifications depending on the grade and type of steel being utilized. To summarize, API 5L and ASTM A106 are extensively used specifications for carbon steel pipe, but they exhibit notable differences in terms of their application, chemical composition, manufacturing processes, mechanical properties, and testing requirements. It is crucial to carefully consider these factors when selecting the appropriate steel pipe for a specific application.
- Q: What are the different methods of heat treatment for steel pipes?
- There are several methods of heat treatment for steel pipes, including annealing, normalizing, quenching, tempering, and stress relieving.
- Q: Can steel pipes be used for agricultural irrigation?
- Yes, steel pipes can be used for agricultural irrigation. They are a durable and long-lasting option that can withstand high pressures and extreme weather conditions. Steel pipes also provide excellent protection against corrosion and damage, making them suitable for various irrigation systems in agriculture.
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Welded square tube for building structure
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 15 m.t.
- Supply Capability:
- 15000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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