Galvanized welded steel pipe for materials
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 12 m.t.
- Supply Capability:
- 20000 m.t./month
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Specification
1、Structure of Galvanized welded steel pipe for 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
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: What is the difference between API 5L and ASTM A53 steel pipes?
- API 5L and ASTM A53 are widely utilized carbon steel pipe standards with similar purposes but notable distinctions. 1. In terms of scope, API 5L pertains to seamless and welded pipes for transporting oil, gas, water, and other fluids. It encompasses plain-end, threaded-end, and belled-end pipe types. Conversely, ASTM A53 is a standard specification for seamless and welded black and hot-dipped galvanized steel pipes utilized in mechanical and pressure applications. 2. The manufacturing processes differ, as API 5L pipes undergo hot-rolling, while ASTM A53 pipes undergo either hot-rolling or cold-drawing. This variance affects the chemical composition and mechanical properties of the pipes. 3. Generally, API 5L pipes have a higher carbon content compared to ASTM A53 pipes. This discrepancy arises from the intended use of API 5L pipes for conveying oil, gas, and water, necessitating greater strength and durability. On the other hand, ASTM A53 pipes cater to mechanical and pressure applications, where lower carbon content is deemed appropriate. 4. API 5L pipes exhibit higher minimum yield strength and tensile strength than ASTM A53 pipes. This outcome stems from the increased carbon content and more stringent manufacturing process employed for API 5L pipes. Conversely, ASTM A53 pipes possess lower yield and tensile strength requirements, rendering them more suitable for general-purpose applications. 5. API 5L pipes offer various coating options, including black varnish, 3PE, FBE, among others, depending on the specific application requirements. In contrast, ASTM A53 pipes are typically hot-dipped galvanized to enhance corrosion resistance. In conclusion, API 5L and ASTM A53 steel pipes differ in scope, manufacturing processes, chemical compositions, mechanical properties, and coating options. The appropriate choice of pipe hinges upon specific application requirements, such as the nature of the conveyed fluid, operating conditions, and desired strength and durability.
- Q: Are steel pipes affected by UV rays?
- Yes, steel pipes can be affected by UV rays. Exposure to UV rays can cause the steel to degrade and corrode over time. Therefore, it is important to protect steel pipes from direct sunlight and UV radiation to prolong their lifespan and maintain their structural integrity.
- Q: Are steel pipes suitable for underground compressed air systems?
- Generally, steel pipes are suitable for underground compressed air systems. They are a popular choice due to several advantages they possess. First and foremost, steel pipes are renowned for their strength and durability. This enables them to withstand the pressure and stress associated with compressed air systems. They can handle high operating pressures without the risk of bursting or leaking. Secondly, steel pipes exhibit excellent resistance to corrosion. They can endure exposure to moisture, soil, and other elements found underground. This reliability makes them ideal for underground installations where pipes may encounter potentially corrosive substances. Moreover, steel pipes are relatively easy to install and maintain. They can be securely connected through welding or threading, ensuring a leak-free connection. Additionally, inspecting and repairing steel pipes is a simple process, allowing for cost-effective maintenance and repairs. Nevertheless, it is important to consider other factors that may impact the suitability of steel pipes for underground compressed air systems, such as specific requirements and conditions. Consulting a professional engineer or qualified expert is advisable to determine the most appropriate choice for a particular application.
- 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.
- Q: Are steel pipes suitable for fire protection systems?
- Yes, steel pipes are suitable for fire protection systems. They are widely used due to their durability, strength, and resistance to high temperatures. Steel pipes can efficiently transport water or fire suppressants to extinguish fires effectively, making them a reliable choice for fire protection installations in various buildings and industrial settings.
- Q: How to make the steel pipe spray paint is not easy to fall off?
- First, clean the surface of the object to be sprayed (pay attention to whether or not to paint off, which is the key):Remove rust stains, oil and so on, when spraying, the nozzle and spray the best distance is 20cm, should be two times forming, first thin spray again, dry, and then spray second times, this is more uniform, and not easy to hang
- Q: What are the different methods of joining steel pipes without welding?
- There are multiple ways to connect steel pipes without welding. These include: 1. Mechanical Couplings: These couplings consist of two separate pieces that attach to the pipe ends and then tighten together. They provide a secure and leak-proof connection, eliminating the need for welding. 2. Threaded Connections: This method involves threading the ends of the steel pipes to create a male and female connection. The pipes are then screwed together using pipe threads, creating a strong and dependable joint. 3. Flanged Connections: Flanges are utilized to connect steel pipes by bolting them together. The flanges have a flat surface with holes that align with corresponding holes in the opposing flange. Bolts are inserted and tightened to establish a tight seal. 4. Grooved Connections: This technique involves grooving the pipe ends and using grooved couplings to join them. The couplings have teeth that interlock with the grooves, resulting in a secure and rigid connection. 5. Compression Fittings: Compression fittings are employed to connect steel pipes by compressing a metal or plastic ring onto the outer surface of the pipe. This creates a tight seal and a reliable connection without welding. 6. Adhesive Bonding: Special adhesives designed for bonding metals can be used to connect steel pipes. The adhesive is applied to the pipe surfaces, which are then pressed together and left to cure, forming a strong and durable bond. 7. Clamping: Clamps can be used to hold steel pipes together, creating a temporary connection. This method is commonly used for testing purposes or in situations where the pipes need to be easily dismantled. Each of these methods has its own benefits and limitations, and the choice depends on various factors such as the specific application, pipe material, and required joint strength.
- Q: What are the different types of steel pipe supports for overhead piping?
- There are several types of steel pipe supports for overhead piping, including beam clamps, pipe hangers, clevis hangers, and riser clamps.
- Q: How are steel pipes protected against internal scaling?
- Steel pipes are protected against internal scaling through a process called internal coating or lining. This involves the application of a protective layer on the interior surface of the pipe to prevent the formation of scales or deposits. There are several methods used for this purpose. One common method is the application of epoxy coatings. Epoxy is a durable and corrosion-resistant material that forms a continuous barrier on the inside of the pipe. It helps to prevent the accumulation of minerals and other substances that can lead to scaling. Epoxy coatings are often applied by spraying or brushing onto the pipe's interior surface and then cured to form a hard and smooth finish. Another method used for protecting steel pipes against internal scaling is cement mortar lining. In this process, a layer of cement mortar is applied to the inside of the pipe. The cement mortar acts as a barrier against scaling and also provides additional protection against corrosion. This lining process is commonly used for large-diameter pipes that are used in water distribution systems. Polyethylene (PE) lining is another technique employed to protect steel pipes from internal scaling. PE lining involves the insertion of a high-density polyethylene liner into the pipe. This liner acts as a barrier against scaling and also helps to reduce friction, improving the flow of fluids through the pipe. PE lining is often used in applications where a smooth interior surface is required, such as in oil and gas pipelines. In addition to these methods, regular maintenance and cleaning of the pipes can also help prevent internal scaling. This may involve the use of chemical cleaning agents or mechanical cleaning techniques to remove any deposits that have formed on the pipe's interior surface. Overall, protecting steel pipes against internal scaling is crucial to maintain their efficiency and prolong their lifespan. By utilizing various coating and lining methods, as well as implementing proper maintenance practices, the risk of internal scaling can be significantly reduced.
- Q: Are steel pipes suitable for food processing facilities?
- Yes, steel pipes are suitable for food processing facilities. Steel pipes are widely used in the food processing industry due to their numerous benefits. Firstly, steel pipes are highly durable and can withstand high temperatures, pressures, and corrosive substances often used in food processing. This ensures the pipes will not degrade or contaminate the food products. Additionally, steel pipes are easy to clean and maintain, making them ideal for maintaining high levels of hygiene required in food processing facilities. Steel pipes also have excellent resistance to bacteria growth, further ensuring the safety and quality of the food being processed. Furthermore, steel pipes are cost-effective and have a long lifespan, making them a reliable and economical choice for food processing facilities. Overall, steel pipes are a suitable and preferred option for food processing facilities due to their durability, cleanliness, and resistance to contamination.
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Galvanized welded steel pipe for materials
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 12 m.t.
- Supply Capability:
- 20000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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