ASME API 5L High Quality ERW Welding Steel Pipe
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 10000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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1、Structure of Welded Steel Tube:
We are company that have many years experience and professional manager team and engineer team and sales team, sure we will provide you high quality of pipe and professioanl service.Welded Steel Tube is formed by drawing a solid billet over a piercing rod to create the hollow shell. We are company that have many years experience and professional manager team and engineer team and sales team, sure we will provide you high quality of welded pipe and professioanl service.
2、Main Features of the Welded Steel Tube:
• High manufacturing accuracy
• The higher strength
• The small inertia resistance
• Strong heat dissipation ability
• Good visual effect
• Satisfy price
3、Welded Steel Tube Specification：
Standard | GB, DIN, ASTM ASTM A106-2006, ASTM A53-2007 |
Grade | 10#-45#, 16Mn 10#, 20#, 45#, 16Mn |
Thickness | 8 - 33 mm |
Section Shape | Round |
Outer Diameter | 133 - 219 mm |
Place of Origin | Shandong, 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%TT |
5、FAQ of Welded Steel Tube:
①How is the quality of your products?
Our products are strictly in accordance with international and domestic standard. We test on every pipe before delivery. Any quality certification or testing report you want to see, please tell us.
Guaranteed: If products’ quality is not in accordance with description as we provide or the promise before you place order, we promise 100% refund.
②How about the price?
Yes, we are factory and be capable of offering you the lowest price. One of our policy is that “ to save time and be absolutely honest with our business relationship, we quote as low as possible for every client, and discount can be given according to the quantity”, if you are interested in bargain and dissatisfy our factory price, just don’t waste your time. Our quotation is professional.
③Why should you choose us?
Choice happens because of our quality and price. Additionally, we can also offer professional products inquiry, products knowledge train (for agents), fast goods delivery, outstanding 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 OK.
6、 Welded Steel Tube Images：
- Q: How do steel pipes handle extreme temperatures?
- Steel pipes can handle extreme temperatures due to their high strength and thermal stability. The properties of steel, such as its excellent heat resistance and low thermal expansion, allow it to withstand both high and low temperatures without significant deformation or structural damage. Additionally, the use of specialized coatings and insulation can further enhance the heat resistance of steel pipes, making them suitable for a wide range of applications in extreme temperature environments.
- Q: How do you calculate the pipe flow velocity coefficient for steel pipes?
- The pipe flow velocity coefficient for steel pipes can be calculated using the Manning's equation. Manning's equation is used to calculate the flow velocity in open channels and pipes, and it takes into account the hydraulic radius, slope, and roughness coefficient of the pipe. To calculate the pipe flow velocity coefficient for steel pipes, follow these steps: 1. Determine the hydraulic radius (R) of the steel pipe. The hydraulic radius is calculated by dividing the cross-sectional area of the pipe (A) by the wetted perimeter (P). The formula is R = A/P. 2. Find the slope (S) of the pipe. The slope represents the change in elevation divided by the length of the pipe. It is usually given as a ratio or a percentage. 3. Determine the roughness coefficient (n) of the steel pipe. The roughness coefficient represents the internal roughness of the pipe and can be obtained from literature or pipe manufacturer specifications. It is commonly given in terms of the Manning's roughness coefficient. 4. Substitute the values of hydraulic radius (R), slope (S), and roughness coefficient (n) into the Manning's equation: V = (1/n) * R^(2/3) * S^(1/2) where V is the flow velocity. 5. Solve the equation for V to calculate the pipe flow velocity coefficient for steel pipes. It is important to note that the calculated velocity coefficient may vary based on the specific pipe dimensions, flow conditions, and other factors. Therefore, it is recommended to consult relevant engineering standards or consult with a hydraulic engineer to ensure accurate and reliable calculations for specific applications.
- Q: What are the different types of steel pipe coatings for marine applications?
- There are several types of steel pipe coatings commonly used for marine applications, including epoxy coatings, polyurethane coatings, and fusion bonded epoxy (FBE) coatings. These coatings are designed to protect the steel pipe from corrosion and provide resistance to marine environments. Epoxy coatings are known for their excellent adhesion and chemical resistance, while polyurethane coatings offer enhanced abrasion resistance. FBE coatings are highly durable and provide excellent corrosion protection. The choice of coating depends on the specific requirements of the marine application and the level of protection needed.
- Q: How do you calculate the flow rate in a steel pipe?
- When calculating the flow rate in a steel pipe, several factors must be taken into consideration. The primary factor to consider is the cross-sectional area of the pipe, which can be determined using the formula A = πr², where A represents the cross-sectional area and r represents the radius of the pipe. Afterwards, it is necessary to ascertain the velocity of the fluid moving through the pipe. This can be accomplished by utilizing the equation v = Q/A, where v denotes the velocity, Q represents the volumetric flow rate, and A represents the cross-sectional area of the pipe. To determine the volumetric flow rate, one can employ the equation Q = AV, where Q represents the volumetric flow rate, A represents the cross-sectional area, and V represents the average velocity of the fluid. Furthermore, it is essential to take into account the properties of the fluid being transported through the pipe. Factors such as density and viscosity can impact the flow rate. In conclusion, the flow rate in a steel pipe can be calculated by determining the cross-sectional area of the pipe, calculating the velocity of the fluid, and considering the properties of the fluid being transported.
- Q: What are the different manufacturing standards for steel pipes?
- Various manufacturing standards for steel pipes are widely recognized and implemented in the industry, ensuring that specific requirements and quality standards are met. Some of the most common standards for steel pipes are as follows: 1. ASTM (American Society for Testing and Materials): Widely used in the United States, ASTM standards encompass a wide range of steel pipe specifications. These standards include specifications for seamless and welded pipes, as well as different grades and dimensions. 2. ISO (International Organization for Standardization): Globally recognized, ISO standards provide guidelines for steel pipe production. They cover areas such as dimensions, materials, testing, and quality control. 3. EN (European Norm): Applicable in Europe, EN standards specify various types of steel pipes. They cover dimensions, materials, manufacturing processes, and testing. 4. JIS (Japanese Industrial Standards): Widely used in Japan and internationally recognized, JIS standards cover dimensions, materials, and testing methods for steel pipes. 5. BS (British Standards): Commonly used in the United Kingdom, BS standards encompass a range of steel pipe specifications. They include requirements for dimensions, materials, and testing procedures. 6. API (American Petroleum Institute): Specifically developed for the oil and gas industry, API standards cover different aspects of steel pipe manufacturing. They include specifications for seamless and welded pipes used in oil and gas exploration, production, and transportation. Manufacturers, buyers, and users of steel pipes should be aware of these standards to ensure the quality, compatibility, and reliability of the pipes. Compliance with these standards helps to ensure that the steel pipes meet necessary requirements and are suitable for their intended applications.
- Q: How do you calculate the pipe pressure drop for steel pipes?
- To determine the pressure drop in steel pipes, there are two equations that can be utilized: the Darcy-Weisbach equation and the Hazen-Williams equation. The Darcy-Weisbach equation, although more precise, necessitates a greater amount of information. It takes into consideration the diameter, length, roughness, fluid flow rate, as well as fluid properties like viscosity and density. The equation is expressed as: To calculate the pressure drop (ΔP), the following formula can be used: (f * L * ρ * V^2) / (2 * D) In this formula: - ΔP denotes the pressure drop - f represents the friction factor (which can be determined using Moody's chart or empirical equations such as the Colebrook-White equation) - L signifies the length of the pipe - ρ denotes the fluid density - V represents the fluid velocity - D signifies the pipe diameter On the other hand, the Hazen-Williams equation is a simplified version commonly employed for water flow calculations. Although less accurate, it is more user-friendly. The equation is expressed as: To calculate the pressure drop (ΔP), the following formula can be used: K * Q^1.85 / (C^1.85 * d^4.87) In this formula: - ΔP denotes the pressure drop - K signifies the Hazen-Williams coefficient (which relies on the pipe material and roughness) - Q represents the flow rate - C signifies the Hazen-Williams roughness coefficient - d denotes the pipe diameter It is crucial to note that these equations provide estimations of the pressure drop, and actual conditions may vary due to factors such as fittings, bends, and valves in the pipe system. Furthermore, consistency in unit usage (e.g., SI units or US customary units) is of utmost importance when employing these equations.
- Q: What is the maximum bending radius for steel pipes?
- The maximum bending radius for steel pipes is determined by several factors, including the diameter of the pipe, the thickness of its walls, and the specific type of steel used. In general, pipes with larger diameters and thicker walls will have a greater maximum bending radius. However, it is crucial to adhere to industry standards and guidelines to ensure that the structural integrity of the pipe remains intact during the bending process. To obtain precise details regarding the maximum bending radius for steel pipes in various applications, it is recommended to consult the manufacturer's specifications or refer to relevant codes and standards, such as the American Society of Mechanical Engineers (ASME) B31.1 or B31.3.
- Q: Are steel pipes more expensive than other types of pipes?
- The cost of steel pipes compared to other types of pipes can vary depending on various factors. Steel pipes are generally considered to be more expensive than some other types of pipes in terms of upfront cost. This is mainly due to the high cost of raw materials and the manufacturing process involved in producing steel pipes. Additionally, steel pipes are known for their durability and strength, making them a popular choice for applications where high pressure or extreme conditions are involved. However, when considering the long-term cost and benefits, steel pipes can often be more cost-effective. They have a longer lifespan compared to some other types of pipes, reducing the need for frequent repairs or replacements. Steel pipes also offer excellent resistance to corrosion, making them suitable for various environments and reducing maintenance costs over time. Moreover, the strength and durability of steel pipes can contribute to a lower risk of leaks or other failures, which can result in significant cost savings in terms of preventing damage or loss. It is important to consider the specific requirements and characteristics of the project or application when comparing the cost of steel pipes to other types of pipes. Factors such as the type of fluid or material being transported, the required pressure rating, the expected lifespan, and the environmental conditions should all be taken into account. Ultimately, while steel pipes may have a higher upfront cost, their long-term durability and reliability can often make them a cost-effective choice in many applications.
- Q: What is the difference between steel pipe and HDPE pipe?
- Steel pipe and HDPE pipe have different compositions and characteristics, making them suitable for various applications. Steel pipe, made of steel, is a robust and durable material commonly used in industrial and infrastructure projects that require strength and reliability. It can withstand high pressure, temperature, and heavy loads, and is resistant to corrosion for both above-ground and underground installations. On the other hand, HDPE pipe is composed of high-density polyethylene, a plastic polymer. These pipes are lightweight, flexible, and easy to install, making them ideal for water supply, drainage systems, and agricultural irrigation. They are resistant to chemicals, abrasion, and UV rays, making them suitable for indoor and outdoor use. HDPE pipes also have a long service life and require low maintenance. In terms of cost, steel pipes are generally more expensive due to the raw materials and manufacturing process involved. However, they are chosen for their superior strength and durability in applications with high pressure or extreme conditions. HDPE pipes offer a cost-effective solution for applications that don't require the same level of strength and durability. In summary, the differences between steel pipe and HDPE pipe lie in their composition, strength, durability, and cost. Steel pipe is known for its strength and reliability, while HDPE pipe offers flexibility, easy installation, and resistance to chemicals and UV rays. The choice between the two depends on the specific application and project requirements.
- Q: How are steel pipes measured and categorized?
- Steel pipes are typically measured and categorized based on their outer diameter, wall thickness, and length. The outer diameter refers to the measurement of the pipe's cross-sectional width, while the wall thickness refers to the thickness of the pipe's walls. These measurements are usually expressed in millimeters or inches. Categorization of steel pipes is done based on their purpose and specifications. The most common categorization is based on the pipe's pressure rating, which determines its ability to withstand different levels of internal or external pressure. Pipes are classified into various pressure classes, such as Schedule 40, Schedule 80, and Schedule 160, among others. The higher the pressure class, the thicker and stronger the pipe. Another way to categorize steel pipes is based on their manufacturing process and material composition. For example, seamless steel pipes are produced through a process that involves piercing a solid bar of steel to form a hollow tube, while welded steel pipes are made by rolling and welding a flat steel sheet or strip into a cylindrical shape. Additionally, steel pipes can be categorized based on their material composition, such as carbon steel pipes, stainless steel pipes, or alloy steel pipes. Steel pipes are also categorized based on their end connections or fittings. Common types of pipe ends include threaded ends, which are suitable for screwing fittings onto the pipe, and plain ends, which are typically used for welding or flanging connections. Overall, the measurement and categorization of steel pipes play a crucial role in ensuring their proper selection and usage in various industries, such as construction, oil and gas, plumbing, and manufacturing.
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ASME API 5L High Quality ERW Welding Steel Pipe
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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