Galvanized welded steel tubes for mechanical materials
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 14000 m.t./month
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Specification
1、Structure of Galvanized welded steel tubes for mechanical 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 tubes for mechanical 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:How are steel pipes used in the transportation industry?
- Steel pipes are used in the transportation industry for a variety of purposes such as constructing pipelines for transporting oil, gas, and other fluids, manufacturing exhaust systems for vehicles, and building infrastructure for railways and bridges.
- Q:Can steel pipes be used for bridge construction?
- Yes, steel pipes can be used for bridge construction. Steel pipes are commonly used in bridge construction due to their high strength-to-weight ratio, durability, and ability to withstand heavy loads and harsh environmental conditions. They are often used for constructing bridge piers, supporting structures, and for carrying utilities such as water or gas pipelines across the bridge.
- Q:What is the difference between hot-finished and cold-finished steel pipes?
- Hot-finished steel pipes are produced by heating the steel to a high temperature and then passing it through a series of rollers to give it the desired shape and size. This process results in a smooth surface finish and improved mechanical properties. On the other hand, cold-finished steel pipes are produced by cold drawing the steel through a die, resulting in a smaller diameter and improved dimensional accuracy. Cold-finished pipes have a smoother surface finish and tighter tolerances compared to hot-finished pipes.
- Q:Can steel pipes be used for transporting gases?
- Yes, steel pipes can be used for transporting gases. Steel pipes are commonly used for gas transportation due to their high strength, durability, and resistance to corrosion. They can effectively withstand high pressure and temperature conditions, making them a reliable choice for gas transmission systems.
- Q:What are the advantages of using steel pipes in the mining industry?
- There are several advantages of using steel pipes in the mining industry. Firstly, steel pipes are extremely durable and can withstand harsh environmental conditions and heavy loads, making them ideal for underground mining operations. Secondly, steel pipes have high tensile strength, which allows for the transportation of large volumes of materials, such as ore or waste, over long distances. Additionally, steel pipes are resistant to corrosion and erosion, ensuring a longer lifespan and reducing maintenance costs. Lastly, steel pipes are relatively easy to install and can be welded together, providing flexibility in designing and constructing mining infrastructure.
- Q:How do you calculate the pipe head loss for steel pipes?
- To calculate the pipe head loss for steel pipes, you can use the Darcy-Weisbach equation. This equation relates the head loss (hL) to the flow rate (Q), pipe diameter (D), pipe length (L), fluid density (ρ), fluid velocity (V), and a friction factor (f). The formula is as follows: hL = (f * (L/D) * (V^2))/(2g) Where: - hL is the head loss (measured in meters) - f is the friction factor (dimensionless) - L is the pipe length (measured in meters) - D is the pipe diameter (measured in meters) - V is the fluid velocity (measured in meters per second) - g is the acceleration due to gravity (usually taken as 9.81 m/s^2) The friction factor (f) depends on the Reynolds number (Re) of the flow, which is a dimensionless quantity representing the ratio of inertial forces to viscous forces. The Reynolds number can be calculated as: Re = (ρ * V * D) / μ Where: - Re is the Reynolds number (dimensionless) - ρ is the fluid density (measured in kg/m^3) - V is the fluid velocity (measured in meters per second) - D is the pipe diameter (measured in meters) - μ is the dynamic viscosity of the fluid (measured in Pa·s or N·s/m^2) The friction factor (f) can be obtained from empirical correlations or from Moody's diagram, which relates it to the Reynolds number and the relative roughness of the pipe surface. By substituting the calculated friction factor (f) and other known values into the Darcy-Weisbach equation, you can determine the head loss in the steel pipe. It is important to note that the head loss is a measure of energy loss due to friction and other factors, and it is typically expressed in terms of pressure drop or height difference.
- Q:Can steel pipes be used for underground fire hydrants?
- No, steel pipes are not typically used for underground fire hydrants. Underground fire hydrants are usually constructed using ductile iron pipes as they provide greater strength, durability, and resistance to corrosion, ensuring reliable water supply during emergencies.
- Q:What is the difference between steel pipe and polyethylene pipe?
- Steel pipe and polyethylene pipe are utilized for plumbing and construction purposes, but they differ in terms of their materials and characteristics. Steel pipe derives its strength and durability from a combination of iron and carbon. It is commonly employed in industrial settings or for underground gas and oil pipelines where high pressure and heavy loads are expected. Steel pipe is renowned for its corrosion resistance and ability to withstand extreme temperatures. In contrast, polyethylene pipe is a plastic pipe crafted from either high-density polyethylene (HDPE) or low-density polyethylene (LDPE). It is lightweight, flexible, and easy to install, making it a popular choice for residential plumbing and irrigation systems. Polyethylene pipe can resist chemicals, UV rays, and abrasive materials, making it suitable for both above-ground and underground installations. Another notable distinction between steel pipe and polyethylene pipe is their respective costs. Steel pipe is generally more expensive due to the raw materials and manufacturing processes involved. Conversely, polyethylene pipe is relatively affordable and cost-effective, especially for smaller-scale projects. Regarding maintenance, steel pipe necessitates periodic inspections and maintenance to prevent corrosion and ensure durability. Conversely, polyethylene pipe is virtually maintenance-free due to its resistance to corrosion and chemical degradation. To summarize, the primary differences between steel pipe and polyethylene pipe lie in their composition, strength, durability, cost, and maintenance requirements. The choice between these pipes depends on the project's specific needs, considering factors such as pressure, load, budget, and environmental conditions.
- Q:How are steel pipes used in the manufacturing of renewable energy systems?
- Steel pipes are widely used in the manufacturing of renewable energy systems due to their durability, strength, and versatility. They are primarily used in the construction of wind turbines, solar panel frames, and the transmission of geothermal energy. Steel pipes provide the necessary structural support and stability required for these systems, ensuring their long-term functionality and reliability. Additionally, steel pipes are often used for transporting and distributing renewable energy sources, such as natural gas and hydrogen, further contributing to the overall efficiency and sustainability of these systems.
- Q:Can steel pipes be used for solar energy systems?
- Yes, steel pipes can be used for solar energy systems. Steel pipes are commonly used for the construction of solar panel mounting structures and the transportation of heated fluids in solar thermal systems. They offer strength, durability, and resistance to high temperatures, making them suitable for various components of solar energy systems.
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Galvanized welded steel tubes for mechanical materials
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 14000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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