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: How do you inspect steel pipes for defects?
- There are several methods to inspect steel pipes for defects. One common approach is visual inspection, where trained professionals examine the surface of the pipes for visible defects such as cracks, corrosion, or deformities. Another method is ultrasonic testing, which involves using high-frequency sound waves to detect internal defects like wall thickness variations or cracks. Magnetic particle inspection is also commonly used, where the pipes are magnetized, and magnetic particles are applied to reveal surface defects. X-ray and radiographic inspections can be employed to detect internal defects as well. Ultimately, a combination of these methods is often utilized to ensure thorough inspection and identification of any defects in steel pipes.
- Q: Why can't stainless steel be put together with carbon steel tube?
- Stainless steel can not be put together with carbon steel because of galvanic corrosion
- Q: What is the minimum wall thickness for steel pipes?
- The minimum wall thickness of steel pipes varies depending on different factors, including the pipe's intended use and the specific industry standards and regulations. Determining the minimum wall thickness generally involves considering factors like the pipe's diameter, material strength, and the pressure or load it will experience during operation. In the oil and gas industry, for instance, the minimum wall thickness for steel pipes is typically specified by industry standards such as API 5L or ASME B31.3. These standards take into account elements such as the pipe's diameter, the material's yield strength, and the maximum pressure it will encounter. In other applications, such as structural or mechanical engineering, the minimum wall thickness for steel pipes is determined by factors like the pipe's intended load-bearing capacity, the desired safety factor, and any relevant building codes or regulations. To establish the specific minimum wall thickness requirements for steel pipes in a particular application, it is essential to consult the appropriate industry standards, codes, or regulations.
- Q: How are steel pipes used in the construction of chemical plants?
- Steel pipes are commonly used in the construction of chemical plants for various purposes. They are primarily utilized for transporting fluids and gases, such as chemicals, water, and steam, throughout the facility. These pipes are selected for their durability, strength, and resistance to corrosion, which is crucial in an environment where exposure to harsh chemicals is common. Steel pipes are also used for structural support, such as in the construction of platforms, walkways, and pipe racks. Additionally, they can be employed for ventilation and exhaust systems, as well as for fire protection systems in chemical plants. Overall, steel pipes play a vital role in ensuring the safe and efficient operation of chemical plants.
- Q: Stainless steel tube, also known as why tube?
- The longitudinal section can be divided into equal section tube and variable cross section tubeThe variable section tube has a conical tube, a stepped tube and a periodically cross section pipe, etc.
- Q: How do steel pipes compare to other materials like PVC or copper?
- Steel pipes have several advantages over other materials like PVC or copper. Firstly, steel pipes are incredibly strong and durable. They can withstand high pressure and extreme temperatures without cracking or bending. This makes them ideal for heavy-duty applications such as industrial piping systems or underground installations. Secondly, steel pipes have excellent corrosion resistance. Unlike copper pipes that can corrode over time, steel pipes are typically coated with anti-corrosive materials such as zinc or epoxy. This protective layer prevents rust and ensures a longer lifespan for the pipes. Furthermore, steel pipes offer superior fire resistance compared to PVC or copper. They are non-combustible and can withstand high temperatures for extended periods without deforming or releasing toxic gases. This makes steel pipes a safer option for applications where fire hazards are a concern. In terms of cost, steel pipes may be more expensive than PVC initially, but they offer better long-term value due to their durability and longevity. Copper pipes, on the other hand, can be quite expensive and are susceptible to theft due to their scrap value. Lastly, steel pipes are highly versatile and can be used in various applications, including water supply, sewage systems, gas pipelines, and oil refineries. They can handle high volumes of fluid with ease and are resistant to external factors like UV rays or physical impacts. Overall, steel pipes are a reliable and efficient choice for many industries and applications, offering strength, durability, corrosion resistance, fire resistance, and versatility that sets them apart from materials like PVC or copper.
- Q: Hot galvanized steel pipe for use?
- Hot galvanized pipe: in order to improve the corrosion resistance of steel pipe, galvanized steel pipe. Galvanized steel pipe hot galvanized and galvanized two kinds, hot galvanized, zinc coating thickness, zinc plating cost is low, the surface is not very smooth.The hot-dip galvanized pipe is an alloy layer that causes molten metal to react with the iron matrix, thus combining the substrate with the two coating. Hot dip galvanizing is the first steel pickling, in order to remove iron, steel pipe surface after pickling, cleaning by ammonium chloride or zinc chloride solution or ammonium chloride and zinc chloride aqueous solution tank, and then into the hot dip tank. Hot galvanizing has the advantages of uniform coating, strong adhesion, long service life and so on. A complex physical and chemical reaction is formed between the steel tube matrix and the molten plating solution to form a corrosion resistant structure with a tight zinc - iron alloy layer. The alloy layer is integrated with the pure zinc layer and the steel pipe matrix. Therefore, it has strong corrosion resistance.
- Q: How are steel pipes protected from corrosion in corrosive environments?
- Steel pipes are protected from corrosion in corrosive environments through various methods such as applying protective coatings, using cathodic protection, and employing corrosion inhibitors.
- Q: What are the typical lengths of steel pipes?
- The typical lengths of steel pipes vary depending on the industry and application. However, common lengths for steel pipes range from 18 to 40 feet.
- Q: How are steel pipes protected against fire?
- Steel pipes are typically protected against fire through the application of fire-resistant coatings or by encasing them in fire-rated materials, such as concrete or gypsum board. Additionally, fire sprinkler systems or fire-resistant insulation may be installed around the pipes to provide an added layer of protection.
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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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