Galvanized welded steel pipe for engineering materials
- Ref Price:
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- 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:Who knows what is the difference between double submerged arc welded pipe and longitudinal submerged arc welding?
- Double submerged arc welding is also a kind of longitudinal submerged arc welding.
- Q:How are steel pipes used in the construction of geothermal power plants?
- Steel pipes are used in the construction of geothermal power plants for various purposes. They are primarily used to transport and circulate the geothermal fluid, which carries the heat from the underground reservoir to the surface. These pipes are typically made of high-quality steel that can withstand the high temperatures and corrosive nature of the geothermal fluid. Additionally, steel pipes are used in the construction of injection wells, where cool water or other fluids are injected back into the reservoir to maintain pressure and sustain the heat extraction process. Overall, steel pipes play a crucial role in the efficient and reliable operation of geothermal power plants.
- Q:How do you determine the maximum allowable stress for steel pipes?
- In order to establish the maximum allowable stress for steel pipes, several factors must be taken into account. These factors encompass the type of steel, the dimensions of the pipe, and the operating conditions it will be exposed to. To begin with, the type of steel chosen is a pivotal aspect in determining the maximum allowable stress. Different steel grades possess distinct mechanical properties, including yield strength, tensile strength, and elongation. These properties define the steel's capacity to withstand stress before deforming or failing. Hence, it is crucial to comprehend the specific grade of steel employed in the pipes to ascertain the maximum allowable stress. Additionally, the dimensions of the pipe are of utmost importance. The external diameter, wall thickness, and length all impact the pipe's strength and ability to handle stress. By calculating the cross-sectional area and moment of inertia, engineers can evaluate the pipe's resistance to bending and axial stresses. These calculations, combined with the material properties, facilitate the determination of the maximum allowable stress. Finally, the operating conditions under which the pipe will be utilized play a critical role. Variables such as temperature, pressure, and the presence of corrosive substances can significantly influence the maximum allowable stress of a steel pipe. Elevated temperatures can alter the mechanical properties of the steel, while high pressures can induce additional stress. Furthermore, the presence of corrosive substances can lead to material degradation and diminish the pipe's strength. Thus, considering these operational factors is essential when determining the maximum allowable stress. To summarize, the process of establishing the maximum allowable stress for steel pipes entails assessing the specific steel grade, the pipe's dimensions, and the operating conditions. By analyzing these factors, engineers can ensure that the steel pipe is designed and utilized within its safe stress limits.
- Q:What are the common standards for steel pipe manufacturing?
- The common standards for steel pipe manufacturing include specifications set by organizations such as the American Society for Testing and Materials (ASTM), the International Organization for Standardization (ISO), and the American National Standards Institute (ANSI). These standards cover various aspects such as size, dimensions, material properties, manufacturing process, and testing requirements to ensure the quality and consistency of steel pipes.
- Q:How are steel pipes used in LNG terminals?
- Steel pipes are used in LNG terminals for various purposes, including the transportation and storage of liquefied natural gas. These pipes are responsible for conveying the LNG from the storage tanks to the regasification units, where it is converted back into its gaseous state for distribution. Steel pipes are preferred for this application due to their strength, durability, and ability to withstand extreme temperatures and pressures. Additionally, these pipes are used for the safe transfer of other fluids and gases within the LNG terminal infrastructure.
- Q:What are the common methods for joining steel pipes?
- Different methods exist for joining steel pipes, depending on specific applications and requirements. Some commonly employed techniques include the following: 1. Welding: Among the most frequently used methods to join steel pipes, welding involves heating the pipe ends and applying pressure to fuse them. Various techniques can be employed, such as arc welding, MIG welding, TIG welding, and even laser welding. 2. Threaded connections: This method involves threading the ends of steel pipes to create male and female connections. These threaded ends are then screwed together using pipe threads. Threaded connections are typically utilized for smaller diameter pipes and in low-pressure applications. 3. Flanged connections: Flanges are employed to join steel pipes in situations that necessitate easy assembly and disassembly or frequent maintenance. Flanges are flat, circular discs with bolt holes that allow for the bolting of pipes together. They offer a robust and leak-proof connection. 4. Compression fittings: Compression fittings enable the joining of steel pipes without the need for welding or threading. They consist of a compression nut, compression ring, and compression sleeve. The nut is tightened onto the sleeve, compressing it against the pipe and creating a secure connection. 5. Grooved couplings: Mechanical connections are created with grooved couplings, which are utilized to join steel pipes. The pipe ends are grooved, and a gasket is inserted between the grooves. The couplings are then tightened, compressing the gasket and forming a tight seal. 6. Soldering or brazing: These methods involve the use of filler metal with a lower melting point than the steel pipes. The filler metal is heated and melted, allowing it to flow between the pipe joints and create a bond. Soldering is generally suited for smaller diameter pipes and low-pressure applications. Each joining method has its own advantages and limitations. The appropriate method for joining steel pipes depends on factors such as pipe diameter, application, working pressure, and required joint durability. It is crucial to consider these factors and consult industry standards and guidelines when selecting the suitable joining method for steel pipes.
- Q:What are the different types of corrosion that can affect steel pipes?
- There are several types of corrosion that can affect steel pipes, including uniform corrosion, pitting corrosion, crevice corrosion, galvanic corrosion, and stress corrosion cracking.
- Q:Can steel pipes be used for oil refineries?
- Yes, steel pipes can be used for oil refineries. Steel pipes are commonly used in oil refineries due to their durability, high strength, and resistance to corrosion, making them suitable for transporting crude oil and refined products under high pressure and harsh conditions.
- Q:How are steel pipes used in firefighting systems?
- Steel pipes are used in firefighting systems to transport water or other fire-suppressing agents from a water source to the location of a fire. These pipes are durable and resistant to heat, making them suitable for carrying large volumes of water at high pressure to extinguish fires effectively. Additionally, steel pipes are often used for underground or overhead fire hydrant systems, sprinkler installations, and standpipe systems in buildings to ensure a reliable and efficient firefighting infrastructure.
- Q:How can galvanized steel tubes be painted on the surface?
- Suitable for galvanized base material (antirust primer), epoxy zinc yellow primer (double component), epoxy ester zinc yellow primer.Pretreatment of galvanized sheet when brushing:1, conditional, you can zinc plating phosphating treatment, or first spray a layer of phosphating primer.2, or smooth zinc plating surface sweeping treatment.3, the galvanized workpiece, galvanized pipe surface with solvent (that is, epoxy zinc yellow primer, thinner) wipe, in order to remove the workpiece crude oil protective layer, and increase cleanliness.4, two-component epoxy zinc yellow primer: in strict accordance with the proportion of paint and curing agent paint, and aging 30 minutes later, modulation suitable construction viscosity, you can spray.One component epoxy ester primer: zinc yellow construction viscosity suitable to construction of modulation, the correct construction method.
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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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