National standard square rectangular tube
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 15 m.t.
- Supply Capability:
- 9800 m.t./month
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Item specifice
1、Structure of National standard square rectangular tube:
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 National standard square rectangular tube:
• High manufacturing accuracy
• High strength
• Small inertia resistance
• Strong heat dissipation ability
• Good visual effect
• Reasonable price
3、 National standard square rectangular tube 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 National standard square rectangular tube:
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、 National standard square rectangular tube Images：
- Q:What is the maximum temperature and pressure that steel pipes can withstand?
- The maximum temperature and pressure that steel pipes can withstand vary depending on the specific grade and type of steel being used. However, in general, steel pipes can withstand high temperatures and pressures due to their strong and durable nature. For high-temperature applications, such as in steam or heat transfer systems, steel pipes can typically withstand temperatures up to 1000 degrees Celsius (1832 degrees Fahrenheit) or even higher. It is important to note that the specific temperature limit may vary depending on the alloy composition and heat treatment of the steel. Regarding pressure, steel pipes are known for their excellent strength and resistance to internal and external pressure. The maximum pressure that steel pipes can withstand will depend on factors such as the pipe diameter, wall thickness, and material strength. In industrial applications, steel pipes can withstand pressures ranging from a few hundred psi (pounds per square inch) to several thousand psi. To ensure the safe operation of steel pipes under high temperatures and pressures, it is crucial to follow industry standards and guidelines, as well as perform regular inspections and maintenance. Consulting with engineers and professionals experienced in steel pipe systems can provide more specific information regarding the maximum temperature and pressure limits for a particular steel pipe application.
- Q:How are steel pipes used in the manufacturing of hydraulic systems?
- Steel pipes are commonly used in the manufacturing of hydraulic systems due to their strength, durability, and resistance to high pressure. These pipes act as conduits to transport hydraulic fluid, allowing the system to transfer power and control the movement of machinery. The steel pipes provide a reliable and leak-free connection, ensuring efficient and safe operation of the hydraulic system.
- Q:What is galvanized steel pipe?
- Galvanized steel pipe is a type of steel pipe that has been coated with a layer of zinc to protect it from corrosion. This process involves immersing the steel pipe in a molten zinc bath, which creates a protective barrier on the surface of the pipe. The zinc coating helps to prolong the lifespan of the steel pipe, making it resistant to rust and other forms of corrosion. Galvanized steel pipes are commonly used in plumbing, water supply, and construction applications.
- Q:What are low-pressure carbon steel tubes?
- It's pressure levelThe design pressure (P) of pressure vessel is divided into four pressure levels: low voltage, medium pressure, high pressure and extra high pressure:(1) low voltage: Code L, 0.1MPa is less than or equal to p<1.6MPa(2) MP: Code M, 1.6MPa is less than or equal to p<10.0MPa(3) high voltage: Code H, 10.0MPa is less than or equal to p<100.0MPa(4) high voltage: Code U, P = 100.0MPa
- Q:What are the common grades of steel used in pipes?
- The common grades of steel used in pipes include ASTM A53, ASTM A106, and API 5L.
- Q:Are steel pipes resistant to electromagnetic interference?
- Yes, steel pipes are generally resistant to electromagnetic interference due to their conductive properties. The metallic nature of steel helps to create a shielding effect, preventing the penetration of electromagnetic waves and reducing interference.
- Q:What is the difference between ERW and SAW steel pipes?
- ERW (Electric Resistance Welded) steel pipes are manufactured by rolling metal sheets into a tube shape and then welding the edges together using an electric current. On the other hand, SAW (Submerged Arc Welded) steel pipes are produced by placing a metal plate in a welding machine with a submerged arc welding process. The key difference lies in the welding technique used, with ERW pipes having a welded seam along the length, while SAW pipes have a more uniform and continuous weld. This difference in welding method also affects the overall strength and durability of the pipes, making them suitable for different applications.
- Q:Can steel pipes be used for automotive applications?
- Yes, steel pipes can be used for automotive applications. Steel pipes are commonly used in the automotive industry for various purposes such as exhaust systems, fuel lines, and hydraulic systems. Steel pipes offer high strength, durability, and resistance to corrosion, making them suitable for withstanding the harsh conditions and demands of automotive applications. Additionally, steel pipes can be easily formed and welded, allowing for customization and ease of installation. Overall, steel pipes provide a reliable and cost-effective solution for automotive applications.
- Q:Can steel pipes be used for sewage systems?
- Yes, steel pipes can be used for sewage systems. Steel pipes are commonly used in sewage systems due to their durability, strength, and resistance to corrosion. They are particularly suitable for high-pressure applications and can withstand the harsh conditions often found in sewage systems. Additionally, steel pipes are relatively easy to install and maintain, making them a popular choice for sewage infrastructure projects.
- Q:What is the difference between steel pipe and PVC conduit?
- Steel pipe and PVC conduit serve distinct purposes and possess unique characteristics. The material composition stands as a primary distinction between steel pipe and PVC conduit. Steel pipe consists of robust and enduring materials, typically carbon steel or stainless steel, rendering it sturdy and resistant to impact. Consequently, it finds its utility in heavy-duty applications such as plumbing or structural support. In contrast, PVC conduit is constructed from polyvinyl chloride, a type of plastic. PVC's lightweight, flexibility, and ease of manipulation make it ideal for electrical purposes like safeguarding and directing electrical wires. Resistance to corrosion represents another disparity between the two. Steel pipe exhibits greater resistance to corrosion than PVC conduit, particularly when fortified with protective layers like zinc or epoxy. This makes steel pipe suitable for outdoor applications, subterranean installations, or environments with high moisture or corrosive elements. PVC conduit, while generally resistant to moisture and chemicals, may deteriorate over time when exposed to sunlight and can be harmed by specific chemicals. Consideration of cost becomes another factor. Steel pipe generally incurs greater expenses than PVC conduit due to its material and manufacturing process. Nonetheless, steel pipe's durability and extended lifespan establish it as a cost-effective selection in the long run, particularly for applications necessitating high strength and longevity. On the contrary, PVC conduit is comparatively inexpensive and readily accessible, rendering it a more affordable choice for numerous electrical projects. Lastly, installation methods differ between the two. Steel pipe is typically connected through threaded connections or welded joints, mandating specialized tools and skills. Conversely, PVC conduit can be effortlessly cut, assembled, and connected using PVC cement or fittings. This renders PVC conduit a more DIY-friendly option for electrical installations. In summary, steel pipe and PVC conduit diverge in terms of material composition, resistance to corrosion, cost, and installation methods. Steel pipe boasts strength, durability, and corrosion resistance, making it suitable for rigorous applications. PVC conduit, conversely, possesses lightness, flexibility, and affordability, rendering it ideal for electrical projects.
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National standard square rectangular tube
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 15 m.t.
- Supply Capability:
- 9800 m.t./month
OKorder Service Pledge
OKorder Financial Service
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