ERW Steel pipe production serious of top quality
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 8000 m.t./month
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1、Structure of Welded Black ERW Steel Pipe:
ERW steel pipe is electric resistance welding, the abbreviation for ERW for transporting oil and natural gas vapor liquid objects, can meet the requirements of high and low pressure, the transport in the world with pipe sector accounted for a pivotal position.
2、Main Features of Welded Black ERW Steel Pipe:
• High manufacturing accuracy
• Advantage of high strength
• Good visual effect
• Reasonable price advance
• Small inertia resistance advance
• Strong heat dissipation ability
3、Welded Black ERW Steel Pipe 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:20#(ASTM A 106/A53 GRB.API5LGRB,GB),45#,16Mn,10#.
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:black lacquered,varnish coating or 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%T/T |
5、FAQ of Welded Black ERW Steel Pipe:
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, just don’t waste your time.Please trust the quotation we would give you, it is professional one.Sure that we will provide you satisfy price for you and the most important is what we provide you is not only in price advantage and also in advantage of quality.
③Why 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、 Welded Black ERW Steel Pipe Images：
- Q: How are steel pipes used in the manufacturing of power plants?
- Steel pipes are used in power plants for various applications. They are commonly used to transport fluids such as water, steam, and fuel in the power generation process. These pipes are essential for the safe and efficient operation of power plants, as they can withstand high temperatures and pressures. Additionally, steel pipes are used for structural purposes in the construction of power plant components such as boilers, heat exchangers, and condensers. Overall, steel pipes play a crucial role in the manufacturing and operation of power plants by facilitating the flow of fluids and providing structural support.
- Q: How are steel pipes installed underground?
- Steel pipes are installed underground through a process called trenching, where a trench is dug in the ground according to the desired pipe route. The trench is then prepared by removing any hindrances and ensuring a level base. The steel pipes are laid into the trench, with proper alignment and connections between sections. Once in place, the trench is backfilled with soil, compacted, and any necessary restoration work is done on the surface.
- Q: How are steel pipes used in stadium construction?
- Steel pipes are commonly used in stadium construction for various purposes such as structural support, plumbing systems, and the installation of lighting and audio equipment. They provide strength, durability, and versatility, making them ideal for ensuring the overall stability and functionality of the stadium.
- Q: How do you calculate the pressure drop in a steel pipe?
- To calculate the pressure drop in a steel pipe, you need to consider several factors such as the diameter and length of the pipe, the flow rate of the fluid, and the properties of the fluid itself. One commonly used equation to calculate the pressure drop in a pipe is the Darcy-Weisbach equation, which is given as: ΔP = (f * (L / D) * (ρ * V^2)) / (2 * D) Where: ΔP is the pressure drop in the pipe f is the Darcy friction factor, which depends on the pipe roughness and Reynolds number L is the length of the pipe D is the diameter of the pipe ρ is the density of the fluid V is the velocity of the fluid To calculate the Darcy friction factor, you can use different methods depending on the flow regime. For laminar flow, you can use the formula f = 16 / Re, where Re is the Reynolds number. For turbulent flow, there are several methods to determine the friction factor, such as the Colebrook equation or the Moody chart. It is important to note that the properties of the fluid, such as its viscosity and density, may vary with temperature and pressure. Therefore, it is necessary to consider these variations when calculating the pressure drop. Additionally, it is worth mentioning that there are other factors that can affect the pressure drop in a steel pipe, such as fittings, valves, and elbows. These factors introduce additional losses, which can be accounted for by using appropriate correction factors or by directly measuring the pressure drop across these components. Overall, calculating the pressure drop in a steel pipe involves using the appropriate equations, considering the properties of the fluid, and accounting for the various factors that may affect the flow. It is recommended to consult relevant engineering handbooks or utilize specialized software for accurate calculations.
- Q: What quota should be installed for heating seamless steel pipe?
- Installation quota of seamless steel pipe project, if it is indoor engineering, sets of welded steel pipe, the price adjustment can
- Q: What is the difference between hot-dip galvanizing and electroplating of steel pipes?
- Steel pipes can be protected from corrosion using two different methods: hot-dip galvanizing and electroplating. To protect steel pipes using hot-dip galvanizing, they are immersed in a molten bath of zinc. The zinc reacts with the steel to create a strong and uniform coating that effectively prevents corrosion. This method is commonly used for outdoor applications and in harsh environments where the pipes are exposed to water or chemicals. In contrast, electroplating involves depositing a thin layer of metal, usually zinc, onto the surface of the steel pipes using an electric current. The steel pipes act as the cathode, and a zinc anode is placed in a solution containing zinc ions. The electric current causes the zinc ions to react with the steel and form a thin coating. Electroplating is often chosen for indoor applications or when aesthetics are a priority. Hot-dip galvanizing generally provides a thicker and more durable coating compared to electroplating. The hot-dip galvanized coating is several times thicker than the electroplated zinc coating, offering better corrosion protection and a longer lifespan for the pipes. The appearance of the coatings also differs. Hot-dip galvanizing results in a matte gray finish, while electroplating can give a more lustrous and shiny appearance. Cost-wise, hot-dip galvanizing is more cost-effective for larger projects because it can coat multiple pipes simultaneously. On the other hand, electroplating is usually more expensive and time-consuming, especially for larger quantities of steel pipes. Ultimately, the choice between hot-dip galvanizing and electroplating depends on the specific requirements of the project, including the intended application, environment, aesthetics, and budget constraints.
- Q: How are steel pipes used in the water treatment industry?
- Steel pipes are commonly used in the water treatment industry for various purposes such as transporting water from one location to another, distributing treated water to consumers, and carrying wastewater to treatment facilities. Their durability, strength, and resistance to corrosion make them suitable for withstanding the harsh conditions often encountered in water treatment processes. Additionally, steel pipes can be easily welded and connected, providing a reliable and efficient solution for water transportation within the industry.
- Q: Can steel pipes be used for irrigation pumps?
- Yes, steel pipes can be used for irrigation pumps. Steel pipes are commonly used in irrigation systems due to their durability, strength, and resistance to corrosion. They are ideal for transporting water from the pump to the irrigation system, ensuring efficient water distribution for agricultural purposes.
- Q: What is the difference between API 5L and ASTM A106 steel pipes?
- Seamless carbon steel pipe is commonly specified under two widely used specifications: API 5L and ASTM A106. These specifications cover similar materials but have different criteria in terms of chemical composition, manufacturing processes, mechanical properties, and testing. API 5L, created by the American Petroleum Institute (API), is designed for line pipe used in oil and gas transportation. It applies to both seamless and welded steel pipes suitable for conveying gas, water, and oil in the natural gas and petroleum industries. API 5L outlines the minimum requirements for manufacturing two product specification levels (PSL 1 and PSL 2) of seamless and welded steel pipes, which have varying chemical composition and mechanical properties. In contrast, ASTM A106, developed by the American Society for Testing and Materials (ASTM), is specifically for seamless carbon steel pipe used in high-temperature service. It covers seamless carbon steel pipe with nominal wall thickness as specified in ANSI B36.10, ranging from NPS 1/8" to NPS 48". ASTM A106 provides guidelines for chemical composition, manufacturing processes, mechanical properties, and testing. A significant distinction between API 5L and ASTM A106 lies in the intended application of the pipe. API 5L is designed for the transmission of liquid and gas, while ASTM A106 is used in high-temperature service. Moreover, the chemical composition and mechanical properties of the steel may differ between the two specifications depending on the grade and type of steel being utilized. To summarize, API 5L and ASTM A106 are extensively used specifications for carbon steel pipe, but they exhibit notable differences in terms of their application, chemical composition, manufacturing processes, mechanical properties, and testing requirements. It is crucial to carefully consider these factors when selecting the appropriate steel pipe for a specific application.
- Q: What quota is reserved for buried DN20 steel pipe?
- If it is reserved for embedded pipe pre buried steel waterproof casing, set of waterproof casing steel production and installation is to set the quota items, if the outdoor installation of welded steel pipe buried steel casing pre quota items, if it is a reserved hole, then there is no need to set the quota items.
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ERW Steel pipe production serious of top quality
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 8000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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