Galvanized welded steel pipe for engineering materials
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 15 m.t.
- Supply Capability:
- 16000 m.t./month
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Item specifice
1、Structure of Galvanized welded steel pipe for building materials :
The surface of galvanized steel pipe welded steel pipe of hot dip galvanized layer or. Galvanized can increase the corrosion resistance of the steel tube, prolong service life. Galvanized pipe is widely used, in addition to water, gas, oil and other general low pressure fluid pipelines. It is also used in the petroleum industry, especially for offshore oil field of oil well pipe and oil pipe, chemical, coking equipment of oil heater, condensation cooler, coal run oil exchanger tube, and trestle pile, the mine tunnel support frame tube.
2、Main Features of Galvanized welded steel pipe for building materials :
• High manufacturing accuracy
• High strength
• Good visual effect
• Reasonable price
3、 Galvanized welded steel pipe for building materials Specification：
Standard | GB, DIN, ASTM ASTM A106-2006, ASTM A53-2007 |
Grade | 10#-45#, 16Mn 10#, 20#, 45#, 16Mn |
Thickness | 1 - 33 mm |
Section Shape | Round |
Outer Diameter | 21 - 610mm |
Place of Origin | Tianjin, 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:Q195 Q235 Q345 X42 X52
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: 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 welded steel pipe for building materials :
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.
6、 Galvanized welded steel pipe for building materials Images：
- Q:How are steel pipes connected to other materials like concrete or plastic?
- Various methods are commonly employed to connect steel pipes to other materials such as concrete or plastic. Among these methods, fittings play a significant role. Fittings, specialized components, serve to facilitate the connection between different materials or sections of pipe. These fittings are available in a variety of shapes and sizes, including elbows, tees, reducers, and couplings, and are designed to establish a dependable and leak-proof connection. When it comes to connecting steel pipes to concrete, one method involves the utilization of concrete anchors. These anchors are embedded within the concrete structure and provide a stable foundation for securing the steel pipe. Clamps or brackets are subsequently employed to attach the pipe to the anchor. In the case of joining steel pipes to plastic materials, the use of transition fittings proves to be effective. These fittings are specifically crafted to connect steel pipes with plastic pipes. They typically feature different connection mechanisms on each end, such as threads or compression fittings, enabling a secure and reliable joint. Welding techniques can also be employed to connect steel pipes to other materials in certain situations. Welding involves melting the ends of the steel and the other material together to create a robust joint. This method is commonly utilized for connecting steel pipes to steel structures or components. In summary, the connection of steel pipes to materials like concrete or plastic necessitates the utilization of specialized fittings, anchors, or welding techniques. These methods guarantee a secure, long-lasting connection capable of withstanding the demands of the given application.
- Q:Can steel pipes be used for LNG terminals?
- Yes, steel pipes can be used for LNG terminals. Steel pipes are commonly used in the construction of infrastructure for LNG terminals due to their strength, durability, and resistance to extreme temperatures. They can effectively handle the high-pressure requirements and the cryogenic temperatures involved in the storage and transportation of liquefied natural gas.
- Q:How do you calculate the pipe friction loss for steel pipes?
- The pipe friction loss for steel pipes can be calculated using the Darcy-Weisbach equation, which takes into account the pipe diameter, length, roughness, flow rate, and fluid properties. This equation considers the pressure drop caused by friction as the fluid flows through the pipe. By solving this equation, the pipe friction loss can be determined.
- Q:What is the difference between ERW (Electric Resistance Welded) and LSAW (Longitudinal Submerged Arc Welded) steel pipes?
- ERW (Electric Resistance Welded) steel pipes are manufactured by passing an electric current through the steel strip or plate to generate heat, which results in the fusion of the edges together to form a pipe. On the other hand, LSAW (Longitudinal Submerged Arc Welded) steel pipes are produced by submerging the steel plate or strip into a molten bath of welding flux and then initiating the welding process. The main difference between ERW and LSAW steel pipes lies in their manufacturing processes and the resulting pipe structure. ERW pipes have a longitudinal seam along their length, created by the fusion of the edges, while LSAW pipes have a single longitudinal seam that is formed by the submerged arc welding process. This difference in welding techniques gives LSAW pipes a higher degree of dimensional accuracy and stability, making them suitable for applications that require precise measurements and strong structural integrity. Additionally, LSAW pipes have a larger diameter range and can be produced in larger sizes compared to ERW pipes. This makes LSAW pipes well-suited for conveying large volumes of fluid or gas, such as in oil and gas pipelines. Conversely, ERW pipes are commonly used in applications that require smaller sizes and lower pressure requirements, such as water supply systems or structural applications. In summary, the main differences between ERW and LSAW steel pipes lie in their manufacturing processes, resulting pipe structure, size capabilities, and applications.
- Q:How are steel pipes used in transportation?
- Steel pipes are commonly used in transportation for various purposes, such as in the construction of pipelines for transporting oil, gas, and water. They are also utilized in manufacturing vehicles, ships, and airplanes, where they serve as structural components or exhaust systems. Additionally, steel pipes are employed in the transportation of goods through conveyor systems and in the construction of railings and barriers for safety on roads and bridges.
- Q:How are steel pipes tested for mechanical strength?
- Steel pipes are tested for mechanical strength through various methods such as tensile testing, impact testing, and hardness testing. Tensile testing involves pulling the pipe until it breaks to determine its maximum strength and elasticity. Impact testing measures the ability of the pipe to withstand sudden loads or impacts. Hardness testing determines the pipe's resistance to indentation or scratching, which indirectly reflects its mechanical strength. These tests ensure that steel pipes meet the required standards and can withstand the intended applications.
- Q:Can steel pipes be used for oil refinery applications?
- Yes, steel pipes can be used for oil refinery applications. Steel pipes offer many advantages for oil refinery applications including high strength, durability, and resistance to corrosion. They are able to withstand high pressure and temperature conditions that are common in oil refinery operations. Steel pipes are also easy to transport and install, making them a popular choice for oil refinery projects. Additionally, steel pipes can be customized to meet specific requirements such as size, thickness, and coating, making them suitable for a wide range of oil refinery applications.
- Q:How are steel pipes used in the construction of gas distribution networks?
- Steel pipes are commonly used in the construction of gas distribution networks due to their durability, strength, and ability to withstand high pressure. These pipes are used to transport natural gas from the source to homes, businesses, and industries. The steel pipes are laid underground and connected using fittings and valves to create a network that efficiently distributes gas. It ensures a safe and reliable delivery of gas to consumers while minimizing the risk of leaks or accidents.
- Q:How are steel pipes protected against electrolytic corrosion?
- Various methods can be employed to safeguard steel pipes against electrolytic corrosion. One commonly utilized approach involves the application of protective coatings on the pipe's surface. These coatings serve as a barrier, effectively preventing direct contact between the steel and the surrounding environment, which may contain moisture and other corrosive substances. Epoxy, polyethylene, and zinc are frequently employed coatings for this purpose. Another means of protection involves the utilization of sacrificial anodes. These anodes, typically fabricated from a metal that exhibits greater reactivity than steel, such as zinc or aluminum, are affixed to the steel pipes. Over time, as these anodes corrode, they willingly sacrifice themselves in order to shield the steel. This process, known as cathodic protection, is exceptionally successful in deterring electrolytic corrosion. Aside from coatings and sacrificial anodes, proper insulation and electrical isolation play a pivotal role in preventing electrolytic corrosion of steel pipes. Insulating materials, such as rubber or plastic sleeves, are employed to prevent direct contact between the pipes and other metals or electrolytes. Electrical isolation can be achieved through the use of dielectric unions or insulating flanges, which effectively obstruct the flow of electric current between different sections of the pipeline. Furthermore, regular maintenance and inspection are essential components of protecting steel pipes against electrolytic corrosion. Regular checks to assess coating integrity, anode condition, and potential electrical leakage are crucial in maintaining the ongoing efficacy of the corrosion protection system. In conclusion, a combination of protective coatings, sacrificial anodes, insulation, electrical isolation, and regular maintenance is indispensable in safeguarding steel pipes against electrolytic corrosion. By implementing these measures, the lifespan of steel pipes can be substantially prolonged, thereby ensuring the safety and reliability of various applications, including water distribution, oil and gas transportation, and structural support in buildings and infrastructure.
- Q:What is the difference between hot-dip galvanizing and electroplating for steel pipes?
- Hot-dip galvanizing and electroplating are both methods used to protect steel pipes from corrosion, but they differ in the process and the properties of the resulting coating. Hot-dip galvanizing involves immersing the steel pipe in a bath of molten zinc, which forms a thick and durable coating that bonds metallurgically with the steel. This provides excellent corrosion resistance and protection even in harsh environments. On the other hand, electroplating involves the deposition of a thin layer of zinc onto the steel pipe using an electric current. While electroplating also offers corrosion protection, the coating is typically thinner and less durable than hot-dip galvanizing. Hot-dip galvanizing is typically preferred for steel pipes that require long-lasting protection, while electroplating may be suitable for applications where a thinner coating is sufficient.
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Galvanized welded steel pipe for engineering materials
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 15 m.t.
- Supply Capability:
- 16000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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