Square rectangular tubes of various standard materials by sell
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 15000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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Item specifice
Standard:
AISI,JIS,GB,BS,DIN,EN,ASTM
Technique:
Hot Rolled,Cold Rolled,ERW,Saw,Extruded,EFW
Shape:
Square,Rectangular
Surface Treatment:
Galvanized,Coated,Copper Coated,Oiled,Dry,Polished,Bright,Black
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#
Thickness:
0-20mm
Length:
0-600mm
Net Weight:
3
1、 Square rectangular tubes of various standard materials by sell
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、 Square rectangular tubes of various standard materials by sell
• High manufacturing accuracy
• High strength
• Small inertia resistance
• Strong heat dissipation ability
• Good visual effect
• Reasonable price
3、 Square rectangular tubes of various standard materials by sell
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、 Square rectangular tubes of various standard materials by sell
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 tubes of various standard materials
- Q:What are the different types of steel coatings used for pipes?
- There are several types of steel coatings used for pipes, including epoxy, polyethylene, polypropylene, and fusion bonded epoxy (FBE) coatings. Each of these coatings provides different levels of corrosion resistance and protection, making them suitable for various applications and environmental conditions.
- Q:How do you calculate the thermal expansion of steel pipes?
- In order to determine the thermal expansion of steel pipes, it is necessary to utilize the coefficient of thermal expansion (CTE) specific to steel. The CTE represents the extent to which a material expands or contracts in response to temperature fluctuations. Typically, the average value of CTE for steel is around 12 x 10^-6 per degree Celsius (12 μm/m°C). To calculate the thermal expansion of a steel pipe, one must possess knowledge of the pipe's initial length (L0), the temperature change (ΔT), and the CTE for steel. The formula for calculating thermal expansion is as follows: ΔL = L0 * CTE * ΔT In this equation: ΔL denotes the alteration in length of the steel pipe L0 represents the initial length of the steel pipe CTE signifies the coefficient of thermal expansion for steel ΔT indicates the change in temperature For instance, suppose there is a steel pipe with an initial length of 2 meters (L0), and the temperature rises by 50 degrees Celsius (ΔT). The CTE for steel is 12 x 10^-6 per degree Celsius. ΔL = 2m * 12 x 10^-6/°C * 50°C ΔL = 0.00024m/m°C * 50°C ΔL = 0.012m Thus, when the temperature increases by 50 degrees Celsius, the steel pipe will expand by 0.012 meters or 12 millimeters. It is important to bear in mind that this calculation assumes linear expansion, which is applicable for minor temperature variations. However, for larger temperature differences or more intricate pipe systems, a more comprehensive analysis may be necessary to consider factors such as the material properties, geometry, and thermal boundary conditions of the pipes.
- Q:The outer circle of a seamless steel pipe 50 head into the outer circle of the 40 to close
- According to the metal processing performance, pipe size, quality requirements, as well as investment and benefits to choose different processing methods and corresponding auxiliary processes. The basic process of cold rolling of cold drawn pipe are: (1) tube feeding, the pipe material for hot-rolled finished or semi-finished tube, pipe extrusion pipe and welded pipe; (2) pipe material preparation, including inspection, bundling, pickling, cleaning, washing, drying, neutralization, grease and so on; (3) cold processing (cold or cold); (4) finished finishing finished including heat treatment, straightening, sampling, end cutting, inspection (manual inspection and various testing), pressure test, oiling, packaging and warehousing etc.. Different products are refined and the content varies.
- Q:Do steel pipes require maintenance?
- Yes, steel pipes do require maintenance. While steel pipes are durable and long-lasting, they can still be subject to wear and tear over time. Regular maintenance is important to ensure their optimal performance and prolong their lifespan. One important aspect of maintenance is inspecting the pipes for any signs of damage or corrosion. Steel pipes can be vulnerable to rust and corrosion, especially in environments with high humidity or exposure to water. Regular inspections allow for early detection of any issues, which can prevent more significant damage and costly repairs in the future. Another aspect of maintenance is cleaning the pipes. Over time, steel pipes can accumulate debris, sediment, or mineral deposits. These build-ups can restrict the flow of fluids or affect the quality of the transported materials. Regular cleaning helps to remove these obstructions and maintain the efficiency of the pipes. Depending on the application, steel pipes may also require periodic lubrication or coating. This helps to reduce friction, prevent corrosion, and enhance the pipes' durability. Lubricants and coatings can be applied during maintenance to ensure the pipes continue to function smoothly and resist corrosion. Overall, regular maintenance of steel pipes is essential to maximize their performance, prevent damage, and prolong their lifespan. By investing time and effort in maintenance, potential issues can be identified and addressed early on, ultimately saving time and money in the long run.
- Q:What is the difference between hot-dipped galvanized and electro-galvanized steel pipes?
- Both hot-dipped galvanized and electro-galvanized steel pipes undergo a galvanization process to protect them from corrosion. However, there are distinct differences between the two methods. Hot-dipped galvanized steel pipes are immersed in molten zinc, resulting in a thick zinc coating on the steel's surface. This creates a durable and long-lasting barrier against corrosion. The thickness of the zinc coating varies, but it is generally thicker than that of electro-galvanized steel pipes. In contrast, electro-galvanized steel pipes are coated with a thin layer of zinc through an electroplating process. This involves passing an electric current through the pipes while they are submerged in a zinc solution. The zinc particles are then deposited onto the steel's surface, creating a thin and uniform protective layer. One key difference is the thickness of the zinc coating. Hot-dipped galvanized steel pipes have a thicker and more robust coating, making them suitable for harsh environments or exposure to corrosive materials. Another distinction is the appearance of the pipes. Hot-dipped galvanized steel pipes typically have a dull grayish finish, while electro-galvanized steel pipes have a smoother and more polished look. In terms of cost, electro-galvanized steel pipes are generally more economical because the electroplating process requires less labor and zinc. Ultimately, the choice between hot-dipped galvanized and electro-galvanized steel pipes depends on the specific application and desired level of corrosion resistance. Hot-dipped galvanized steel pipes are typically used in demanding environments, while electro-galvanized steel pipes are suitable for less corrosive applications where cost-efficiency is important.
- Q:How are steel pipes used in the manufacturing of machinery and equipment?
- The manufacturing of machinery and equipment heavily relies on the widespread utilization of steel pipes, thanks to their numerous advantageous properties. These pipes serve as a primary means of conveying different materials, fluids, and gases within the machinery, effectively ensuring safe and efficient transportation. One crucial application of steel pipes in machinery manufacturing lies in the realm of hydraulic and pneumatic systems. Hydraulic systems depend on steel pipes to transmit power and regulate fluid flow, while pneumatic systems utilize these pipes to transport compressed air, powering various components. The strength and durability inherent in steel pipes guarantee their ability to withstand the immense pressure and forces exerted by these systems, making them a dependable choice for such purposes. Moreover, steel pipes find extensive use in the construction of machinery frames and structures. Their exceptional tensile strength and resistance to corrosion make them an ideal option for providing structural support and stability to heavy machinery. These pipes can be effortlessly welded, bent, and fabricated into diverse shapes, allowing for flexibility in design and enabling the creation of intricate machinery structures. Furthermore, steel pipes play an indispensable role in the transportation of raw materials and finished products throughout the manufacturing process. They frequently serve as conduits for the movement of liquids, gases, and granular materials, ensuring the smooth operation of machinery and equipment. Steel pipes are particularly well-suited for handling abrasive and corrosive materials, as their robust construction guarantees minimal wear and tear over time. In conclusion, the extensive utilization of steel pipes in the manufacturing of machinery and equipment stems from their strength, durability, and versatility. Whether it be for hydraulic systems, structural support, or material transportation, steel pipes form an integral component that significantly contributes to the efficiency and dependability of machinery across various industries.
- Q:What are the different types of connections used with steel pipes?
- There are several types of connections commonly used with steel pipes, including threaded connections, welded connections, flanged connections, and grooved connections.
- Q:Are steel pipes suitable for pharmaceutical manufacturing facilities?
- Yes, steel pipes are suitable for pharmaceutical manufacturing facilities. Steel pipes are highly durable, resistant to corrosion, and can withstand high temperatures and pressures. They are also easy to clean and maintain, ensuring the integrity and safety of pharmaceutical processes. Additionally, steel pipes are compatible with a wide range of chemicals and pharmaceutical products, making them a reliable choice for pharmaceutical manufacturing facilities.
- Q:How are steel pipes used in the construction of underground parking garages?
- Steel pipes are commonly used in the construction of underground parking garages for various purposes. They serve as structural supports, providing stability and strength to the overall structure. Steel pipes are also used for drainage systems, allowing for efficient disposal of water and preventing flooding. Additionally, they are utilized for the installation of utilities such as water, gas, and electrical lines, ensuring easy access and maintenance. Overall, steel pipes play a crucial role in the construction of underground parking garages by offering durability, functionality, and reliability.
- Q:How are steel pipes used in the construction of water treatment plants?
- Due to their numerous advantages and suitability for this specific application, steel pipes find wide usage in the construction of water treatment plants. They serve various purposes to ensure the effective and dependable operation of these facilities. To begin with, steel pipes are commonly employed for transporting water from its source to the treatment plant. With their high durability and ability to withstand high pressure, they ensure the secure and safe delivery of water over long distances. Moreover, their resistance to corrosion is crucial in preventing any contamination of the water supply. Within the treatment plant, steel pipes are utilized in the distribution system to convey water to different treatment processes. Typically laid underground or integrated into the facility's infrastructure, they facilitate a seamless flow of water between different treatment units. Due to their exceptional strength and structural integrity, steel pipes are highly suitable for this purpose. Furthermore, steel pipes are utilized in the construction of various water treatment equipment. For example, they are incorporated into the construction of sedimentation tanks, where water is allowed to settle while impurities are removed. Similarly, steel pipes are used in the construction of filtration systems, where water passes through different layers of filters to eliminate contaminants. Another significant application of steel pipes in water treatment plants is their use in the construction of pumping stations. These stations are responsible for maintaining a steady water flow throughout the treatment process. To ensure efficient water movement between different treatment stages, steel pipes are employed in the design and construction of the pumping systems. To summarize, steel pipes play a critical role in the construction of water treatment plants. They are utilized for water transportation, distribution within the facility, construction of treatment equipment, and in the design of pumping stations. Their durability, resistance to corrosion, and exceptional strength make them an ideal choice for this essential infrastructure.
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Square rectangular tubes of various standard materials by sell
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 15000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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