Galvanized welded steel pipe for construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 12000 m.t./month
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Specification
1、Structure of Galvanized welded steel pipe for construction:
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.
2、Main Features of Galvanized welded steel pipe for construction
• High manufacturing accuracy
• High strength
• Good visual effect
• Reasonable price
3、 Galvanized welded steel pipe for construction 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、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 construction
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.
②Why 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 welded steel pipe for furniture Images：
- Q: How do you inspect steel pipes for defects?
- There are several methods to inspect steel pipes for defects. One common approach is visual inspection, where trained professionals examine the surface of the pipes for visible defects such as cracks, corrosion, or deformities. Another method is ultrasonic testing, which involves using high-frequency sound waves to detect internal defects like wall thickness variations or cracks. Magnetic particle inspection is also commonly used, where the pipes are magnetized, and magnetic particles are applied to reveal surface defects. X-ray and radiographic inspections can be employed to detect internal defects as well. Ultimately, a combination of these methods is often utilized to ensure thorough inspection and identification of any defects in steel pipes.
- Q: How are steel pipes used in the construction of offshore oil rigs?
- Steel pipes are used in the construction of offshore oil rigs primarily for the transportation of oil and gas. These pipes are used to connect the wells drilled in the seabed to the surface facilities on the rig. They are also utilized for the circulation of drilling fluids, which help maintain stability and cool down the drilling equipment. Additionally, steel pipes are used to construct the rig's structural components like risers, conductors, and caissons, providing strength and support in the harsh offshore environment.
- Q: What's the difference between a cracked carbon steel tube and a liquid carbon steel tube?
- Test: cracking carbon steel pipe in addition to eddy current testing, but also to do ultrasonic testing, and liquid carbon steel tubes are generally only eddy current testing.
- Q: Are steel pipes magnetic?
- Yes, steel pipes are typically magnetic because they are made primarily of iron, which is a ferromagnetic material.
- Q: What is the difference between steel pipes and copper pipes?
- Steel pipes and copper pipes differ in terms of their material composition, with steel pipes being made of steel and copper pipes being made of copper. Steel pipes are generally stronger and more durable, making them suitable for high-pressure applications and underground installations. Copper pipes, on the other hand, have excellent heat conductivity and corrosion resistance, making them ideal for plumbing and heating systems. Additionally, copper pipes are more expensive than steel pipes but offer better resistance to bacteria growth. Ultimately, the choice between steel and copper pipes depends on the specific needs and requirements of the application.
- Q: How do you calculate the pipe pressure drop coefficient for steel pipes?
- To calculate the pipe pressure drop coefficient for steel pipes, you can use the Darcy-Weisbach equation. This equation relates the pressure drop in a pipe to various factors such as the flow rate, pipe diameter, pipe length, and the properties of the fluid being transported. The pressure drop coefficient, also known as the friction factor or the Darcy-Weisbach friction factor, is denoted by the symbol f. It is a dimensionless parameter that represents the resistance to flow in the pipe. The value of f depends on the flow regime, which can be laminar or turbulent. For laminar flow, which occurs at low flow rates or with viscous fluids, the pressure drop coefficient can be calculated using the Hagen-Poiseuille equation. This equation relates the pressure drop to the fluid viscosity, pipe length, pipe diameter, and flow rate. However, for turbulent flow, which occurs at higher flow rates, the calculation of the pressure drop coefficient is more complex. It depends on the roughness of the pipe wall, which affects the flow resistance. The roughness is typically quantified using the relative roughness, which is the ratio of the pipe wall roughness to the pipe diameter. To calculate the pressure drop coefficient for turbulent flow in steel pipes, you can use empirical correlations or Moody's diagram. Moody's diagram provides a graphical representation of the friction factor as a function of the Reynolds number and the relative roughness. The Reynolds number represents the flow regime and is calculated using the fluid properties, flow rate, and pipe dimensions. By finding the intersection of the Reynolds number and relative roughness on Moody's diagram, you can determine the corresponding pressure drop coefficient. It's important to note that the pressure drop coefficient for steel pipes may vary depending on the specific pipe dimensions, surface roughness, and fluid properties. Therefore, it is recommended to consult relevant standards or engineering references for accurate and up-to-date values of the pressure drop coefficient for steel pipes in your specific application.
- Q: What's the difference between seamless steel pipe and welded pipe?
- The difference can be seen from the outward appearance that the welded pipe is welded by roll up.
- Q: What is the difference between schedule 10 and schedule 40 steel pipes?
- Schedule 10 and schedule 40 steel pipes differ in terms of their wall thickness. Schedule 10 pipes have a thinner wall, making them suitable for low-pressure applications, while schedule 40 pipes have a thicker wall, making them more appropriate for high-pressure applications.
- Q: What are the different methods of pipe joining using steel pipes?
- Some of the different methods of pipe joining using steel pipes include butt welding, socket welding, threaded connections, and flange connections.
- Q: What are the different pipe fittings used with steel pipes?
- Some different pipe fittings used with steel pipes include elbows, tees, reducers, couplings, and flanges.
Send your message to us
Galvanized welded steel pipe for construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 m.t.
- Supply Capability:
- 12000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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