Galvanized pipe/galvanized hollow section
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 5000 m.t./month
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1、Structure of Galvanized hollow section DIN-A21:
Galvanized hollow section DIN-A21 is formed by drawing a solid billet over a piercing rod to create the hollow shell. As the manufacturing process does not include any welding, seamless pipes are perceived to be stronger and more reliable. we can provide you best service as we can, and we sure that we can give you satisfy sprice.
2、Main Features of the Galvanized hollow section DIN-A21: :
• High manufacturing accuracy
• High strength
• Small inertia resistance
• Strong heat dissipation ability
• Good visual effect
• Reasonable price
3、Galvanized hollow section DIN-A21 Specification：
Standard | GB, DIN, ASTM ASTM A106-2006, ASTM A53-2007 |
Grade | 10#-45#, 16Mn 10#, 20#, 45#, 16Mn |
Thickness | 8 - 33 mm |
Section Shape | Round |
Outer Diameter | 133 - 219 mm |
Place of Origin | Shandong, China (Mainland) |
Secondary Or Not | Non-secondary |
Application | Hydraulic Pipe |
Technique | Cold Drawn |
Certification | API |
Surface Treatment | factory state or painted black |
Special Pipe | API Pipe |
Alloy Or Not | Non-alloy |
Length | 5-12M |
Outer Diameter | 21.3-610mm |
Grade | 20#, 45#, Q345, API J55, API K55, API L80, API N80, API P110, A53B |
Standard | ASME, ASTM |
1) Material:20#(ASTM A 106/A53 GRB.API5LGRB,GB),45#,16Mn,10#.
2) Specification range:OD:21.3-610mm,WT:6-70mm,length:6-12m or according to the requirement of clients.
3) Excutive standards:GB,ASME API5L.ASTM A 106/A53,Despite of the above standards,we can also supply seamless steel pipe with standard of DIN,JIS,and so on,and also develop new products according to the requirements of our clients!
4) Surface:black lacquered,varnish coating or galvanized.
5) Ends:Beveled or square cut,plastic capped,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 Galvanized hollow section DIN-A21:
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、Galvanized hollow section DIN-A21 Images：
- Q:What is the difference between steel pipe and concrete pipe?
- Steel pipe and concrete pipe are both commonly used for various applications, but they differ significantly in their material composition and properties. Firstly, the main difference lies in the materials used to manufacture these pipes. Steel pipes are made from steel, which is an alloy of iron and carbon. On the other hand, concrete pipes are made from a mixture of cement, aggregate (such as sand or gravel), and water. Secondly, steel pipes are known for their strength and durability. They can withstand high pressure, making them suitable for applications that require transporting fluids or gases under high pressure. Steel pipes also have a high resistance to corrosion, which is advantageous in environments where the pipe is exposed to moisture or chemicals. In contrast, concrete pipes are not as strong as steel pipes and are more prone to cracking or damage under high pressure. However, they are still capable of handling moderate pressure loads and are often used for drainage systems or sewage applications. Another significant difference is the installation process. Steel pipes are typically joined together using welding techniques, such as butt welding or socket welding. This creates a seamless and strong connection between the pipes. On the other hand, concrete pipes are often installed using rubber or gasketed joints, which are easier to assemble and disassemble. Cost is another factor where steel and concrete pipes differ. Steel pipes tend to be more expensive due to the higher cost of steel as a raw material and the additional labor required for welding and fabrication. Concrete pipes, on the other hand, are generally more cost-effective as the materials used in their production are more readily available and the installation process is simpler. In summary, the main differences between steel pipes and concrete pipes lie in their material composition, strength, resistance to corrosion, installation process, and cost. Steel pipes offer superior strength and durability, making them suitable for high-pressure applications and environments prone to corrosion. Concrete pipes, while not as strong, are cost-effective and commonly used for drainage systems or sewage applications.
- Q:Are steel pipes resistant to vibration?
- Yes, steel pipes are generally resistant to vibration due to their inherent strength and rigidity. However, the level of resistance can vary depending on factors such as pipe thickness, design, and installation. Additionally, the presence of external factors like fluid flow or mechanical forces can also affect the level of vibration resistance.
- Q:What is the average lead time for manufacturing steel pipes?
- The average lead time for manufacturing steel pipes can vary depending on various factors such as size, complexity, and quantity. However, a typical range for lead time is generally around 4 to 8 weeks.
- Q:Are steel pipes suitable for underground gas distribution?
- Steel pipes are indeed appropriate for the distribution of gas underground. Due to their remarkable strength, durability, and resistance to corrosion, steel pipes are extensively employed in gas distribution systems. The ability of steel pipes to endure the pressure and stress in underground environments renders them a dependable choice for gas transportation. Moreover, steel pipes possess the added benefit of being capable of withstanding high temperatures and resisting fire, making them a secure alternative for underground gas distribution. Nonetheless, it is crucial to ensure that the steel pipes employed are adequately coated and shielded against corrosion to guarantee their longevity and avert any possible leaks or harm.
- Q:What are the common fittings and accessories used with steel pipes?
- There are several common fittings and accessories used with steel pipes in various applications. These fittings and accessories are essential for connecting, redirecting, controlling, and supporting the flow of fluids or gases through the pipe system. One of the most commonly used fittings is the steel pipe elbow, which allows for a change in direction of the pipe. Elbows are available in different angles, such as 45 degrees or 90 degrees, to accommodate specific piping needs. They are used to prevent sharp bends that could cause flow restrictions or pressure drops. Another common fitting is the steel pipe tee, which has three openings in the shape of a "T". Tees are used to create branch connections to redirect the flow of fluids or gases into multiple directions simultaneously. Steel pipe reducers are fittings used to connect pipes of different sizes. They come in two types, concentric reducers and eccentric reducers. Concentric reducers have a symmetrical design and allow for a smooth transition between pipes of different diameters. Eccentric reducers, on the other hand, have an offset design and are used when there is a need to align pipes at different levels. Couplings are fittings used to join two pipes together. They come in different types, such as threaded or socket weld couplings, and provide a secure and leak-proof connection between pipes. Flanges are another common accessory used with steel pipes. They are flat, round plates with holes in the center that allow for the connection of pipes, valves, or other equipment. Flanges are typically used in applications that require easy access for inspection, cleaning, or maintenance. Other common fittings and accessories include steel pipe caps, which are used to seal the ends of pipes, and steel pipe nipples, which are short lengths of pipe used to extend or connect two fittings. It is important to note that the selection of fittings and accessories for steel pipes depends on the specific application, such as the type of fluid or gas being transported, the pressure and temperature requirements, and the overall system design. Consulting with a professional or referring to industry standards is recommended to ensure the correct fittings and accessories are chosen for a particular steel pipe system.
- Q:Can steel pipes be used for paper mills?
- Yes, steel pipes can be used for paper mills. Steel pipes are widely used in various industries, including paper mills, due to their durability, strength, and resistance to corrosion. These pipes are commonly used for transporting water, chemicals, steam, and other fluids within the paper mill facilities.
- Q:What is the impact of temperature on steel pipes?
- The significance of temperature on steel pipes cannot be underestimated, as it can bring about both positive and negative consequences. When exposed to high temperatures, steel pipes undergo thermal expansion, which can result in distortion or buckling. This expansion also has the potential to affect joints and connections, leading to leaks or failures. Hence, it is imperative to take into consideration the coefficient of thermal expansion during the design and installation of steel pipes in environments with elevated temperatures. Conversely, steel pipes possess remarkable thermal conductivity, enabling them to endure high temperatures without substantial deterioration. This characteristic renders them suitable for applications where heat transfer is of utmost importance, such as in industrial processes or heating systems. Extreme cold temperatures also pose a threat to steel pipes. Freezing conditions cause water or other fluids within the pipes to expand, resulting in cracks or bursts. This can lead to leaks, fluid loss, and potential harm to surrounding structures. Consequently, it is necessary to implement appropriate insulation and preventive measures to ensure the integrity of steel pipes in cold environments. Moreover, temperature fluctuations can impact the mechanical properties of steel, including its tensile strength and toughness. Prolonged exposure to elevated temperatures can cause a phenomenon known as thermal degradation, which diminishes the steel's strength and renders it more susceptible to deformation or failure. In conclusion, temperature exerts a significant influence on steel pipes, affecting their structural integrity, thermal performance, and mechanical properties. Proper design, insulation, and maintenance are crucial to guarantee the safe and efficient operation of steel pipes under varying temperature conditions.
- Q:What are steel pipes?
- Steel pipes are cylindrical tubes made from steel that are used for various purposes, such as transporting fluids and gases, structural applications, and construction projects. They are known for their durability, strength, and resistance to corrosion, making them a popular choice in industries such as oil and gas, plumbing, and infrastructure development.
- Q:Can steel pipes be used for conveying hazardous materials?
- Yes, steel pipes can be used for conveying hazardous materials. Steel pipes are known for their durability, strength, and resistance to corrosion, making them suitable for transporting various hazardous substances such as chemicals, gases, and liquids. Additionally, steel pipes can withstand high pressures and temperatures, ensuring the safe and efficient transportation of hazardous materials. However, it is important to ensure proper handling, maintenance, and adherence to safety regulations when using steel pipes for conveying hazardous materials.
- Q:How do you determine the maximum allowable stress for a steel pipe?
- To determine the maximum allowable stress for a steel pipe, several factors need to be considered. Firstly, the type of steel used in the pipe is crucial as different types of steel have different mechanical properties and strengths. Secondly, the dimensions and thickness of the pipe play a significant role in determining its maximum allowable stress. Thicker pipes generally have higher allowable stresses compared to thinner ones. Additionally, it is important to consider the operating conditions under which the pipe will be subjected. This includes factors such as the temperature, pressure, and the type of fluid flowing through the pipe. These conditions can greatly affect the maximum allowable stress as high temperatures or corrosive fluids may weaken the steel and reduce its strength. To determine the maximum allowable stress, engineers typically refer to industry standards and codes such as the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code and the American Petroleum Institute (API) standards. These standards provide guidelines and formulas for calculating the maximum allowable stress based on the material properties, dimensions, and operating conditions of the pipe. It is important to note that determining the maximum allowable stress is a critical step in ensuring the structural integrity and safety of the steel pipe. It requires a thorough understanding of the materials, design considerations, and industry standards. Therefore, it is recommended to consult with experienced engineers or professionals who specialize in piping design and analysis to accurately determine the maximum allowable stress for a steel pipe.
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Galvanized pipe/galvanized hollow section
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 5000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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