ERW LINE PIPE

Ref Price:

Loading Port:: China Main Port

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: -

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

You Might Also Like

Seamless Steel Tubes For Elevated Temperatures

ASTM 53 ERW welded pipes--Tube and Pipe

Oil Tubing / Petroleum Pipe

Hot-rolled seamless steel tubes for hydraulic pillar service

Seamless Steel Pipe of Top Supplier

Seamless pipe ASTM A53/ASTM A 106/API 5L

Seamless black steel pipe API,GB,ASTM,ASME,DIN

Hot Dipped or Pre-galvanized Galvanized Pipe America Standard A53 Q195

Product	BEST ERW CARBON STEEL PIPE API 5L GR.B
Specification	Section shape: round
	Thickness: 4mm-16mm
	Outer diameter: 219mm-2020mm
Standard	ASTM A252, BS1387,GB3091,ASTMA53, B36.10, BS EN1029, API 5L, GB/T9711 etc
Material	Q195, Q235, Q345; ASTM A53 GrA,GrB; STKM11,ST37,ST52, 16Mn,etc.
Fabrication	plain ends pipe,cutting threading, beveled, 3PE steel pipe, black and color painting, anti-rusting oilsteel pipe, varnish paintingsteel pipe, zinc-coating steel pipe, steel stamp, drilling, diameter reducing pipe etc.
Surface Treatment	1. 3PE
	2. PVC,black and color painting
	3. Transparent oil,anti-rust oil
	4. According to clients requirement
Package	1. Bundle
	2. Bulk
	3. Plastic bags ,etc
Min order	10 tons, more quantity price will be lower
Payment terms	T/T, L/C at sight, western union etc.
Deliver time	Within 7-30 days after deposit, ASAP
Application	Construction,machine structure pipe, Agriculture equipment pipe, Water and gas pipe, Greenhouse pipe, Scaffolding pipe, Building material tube, Furniture tube, Low pressure fluid tube, Oil pipe, etc
Application
Others	We can do special orders as customer’s requests.
	We also can provide all kinds of steel hollow pipes.
	All the production process are made under the ISO9001:2008 strictly
Business type	Manufacture and exporter

Q: How do you prevent steel pipes from rusting?: Various measures can be taken to prevent the rusting of steel pipes. One effective method is the application of a protective coating on the surface of the pipes. Different types of coatings, such as paint, epoxy, or zinc, can be used for this purpose. These coatings act as a barrier between the steel and the corrosive environment, thereby preventing direct contact between moisture, oxygen, and the metal, which can lead to rust formation. Another approach involves the use of corrosion inhibitors. These substances are added to the water or fluid flowing through the pipes, creating a protective film on the surface of the steel. This film acts as a shield, inhibiting the corrosion process and preventing the formation of rust. Regular maintenance plays a crucial role in preventing rust on steel pipes. It is essential to inspect the pipes regularly for any signs of damage or corrosion and promptly repair or replace any compromised areas. Additionally, keeping the pipes clean and dry by removing accumulated dirt or moisture helps prevent the formation of rust. In some cases, using stainless steel pipes instead of regular steel can be beneficial. Stainless steel contains chromium, which forms a passive oxide layer on the metal's surface. This layer acts as a natural barrier against corrosion, making stainless steel pipes highly resistant to rust. Finally, controlling the installation environment of the pipes can also help prevent rust. This can be achieved by maintaining proper ventilation, controlling humidity levels, and avoiding exposure to harsh chemicals or corrosive substances. By implementing these preventive measures, the lifespan and integrity of steel pipes can be significantly extended, while minimizing the risk of rust formation.

Q: What are the different methods of pressure testing steel pipes?: There are several methods of pressure testing steel pipes, including hydrostatic testing, pneumatic testing, and ultrasonic testing. Hydrostatic testing involves filling the pipe with water and applying pressure to check for leaks or weaknesses. Pneumatic testing uses compressed air or gas to pressurize the pipe and detect any leaks or failures. Ultrasonic testing utilizes high-frequency sound waves to inspect the pipe's integrity by detecting any flaws or defects.

Q: What's the material of Q325 steel pipe?: Plain carbon structural steelIt's a kind of steel material. Q stands for the yield of this material, and the latter 325 means the yield value of this material, at around 325. And the yield value will decrease as the thickness of the material increases.

Q: What is the difference between the stainless steel pipe welded pipe and seamless pipe?: Welding performance: chemical composition of seamed pipe and seamless pipe are different. The production of seamless steel components only meets the basic requirements of astm. The production of seamed tube steel containing suitable for chemical composition of welding. For example, the mixing of silicon, sulfur, manganese, oxygen, and a certain proportion of elements such as the triangle ferrite can produce a welding flux which is easy to transfer heat during welding, so as to make the whole weld be welded well. The lack of steel pipe above the chemical components, such as seamless tube, can produce all kinds of unstable factors in the process of welding, welding and welding penetration is not easy.

Q: Can steel pipes be used for irrigation systems?: Yes, steel pipes can be used for irrigation systems. They are commonly used due to their durability, strength, and resistance to corrosion. Steel pipes can handle high water pressure and are suitable for both above-ground and underground installations in irrigation systems.

Q: Can steel pipes be used for transporting liquids and gases?: Yes, steel pipes can be used for transporting liquids and gases. Steel pipes are commonly used in various industries, such as oil and gas, water supply, and chemical processing, due to their durability, strength, and resistance to corrosion. They are capable of safely and efficiently transporting a wide range of liquids and gases over long distances.

Q: How are steel pipes used in the construction of railways and transportation systems?: Various purposes necessitate the common use of steel pipes in the construction of railways and transportation systems. Bridges and tunnels, in particular, heavily rely on steel pipes. In bridge construction, steel pipes act as structural components, providing overall support and stability. As for tunnels, steel pipes serve as ventilation shafts, promoting air circulation and the removal of fumes, thus ensuring the safety of passengers and workers. Furthermore, steel pipes find utility in the construction of railway tracks. They are utilized as supports, offering a stable foundation for train travel. In this context, steel pipes are typically coated or galvanized to prevent corrosion and guarantee their longevity. Additionally, steel pipes are employed in drainage systems within railway stations and transport hubs, playing a crucial role in proper water management and the prevention of flooding. Another significant application of steel pipes in transportation systems lies in the construction of signposts and streetlights. In these structures, steel pipes often serve as the primary structural element, providing strength and durability. Their malleability and ease of fabrication make them a sought-after choice, as they can be shaped to meet specific design requirements. In summary, steel pipes assume a vital role in the construction of railways and transportation systems, offering structural support, ensuring adequate ventilation, facilitating drainage, and serving as key components in various structures. Their strength, durability, and versatility render them an ideal choice for these applications, contributing to the safe and efficient operation of transportation networks.

Q: How do you calculate the flow velocity in a steel pipe?: To calculate the flow velocity in a steel pipe, you need to consider the principles of fluid mechanics and apply relevant equations. The most commonly used equation to calculate flow velocity is the Bernoulli equation, which relates the pressure, velocity, and elevation of a fluid. First, you need to determine the volumetric flow rate (Q) of the fluid passing through the pipe. This can be done by measuring the mass flow rate (m) or the volumetric flow rate directly using a flow meter. Once you have the volumetric flow rate, you can proceed with calculating the flow velocity (V). The flow velocity (V) is obtained by dividing the volumetric flow rate (Q) by the cross-sectional area (A) of the pipe. The cross-sectional area of the pipe can be determined using the formula A = πr^2, where r is the radius of the pipe. Therefore, the formula to calculate the flow velocity (V) in a steel pipe is: V = Q / A Keep in mind that this calculation assumes an ideal flow condition and does not account for any frictional losses or other factors that may affect the flow. In real-world scenarios, it is essential to consider additional factors like pipe roughness, fluid viscosity, and pipe diameter to obtain a more accurate estimation of flow velocity.

Q: How do steel pipes compare to other pipe materials like PVC or copper?: Steel pipes have several advantages over other pipe materials like PVC or copper. Firstly, steel pipes are incredibly durable and can withstand high levels of pressure and extreme temperatures, making them suitable for a wide range of applications. Secondly, steel pipes have excellent resistance to corrosion, which ensures their longevity and reduces the need for frequent maintenance or replacement. Additionally, steel pipes have a higher strength-to-weight ratio compared to PVC or copper, making them more robust and capable of handling heavy-duty tasks. However, steel pipes can be more expensive and require special equipment for installation. Overall, steel pipes are a reliable and versatile option that offers superior durability and performance compared to other pipe materials.

Q: What are the different types of supports used for underground steel pipes?: The different types of supports used for underground steel pipes include concrete encasement, pipe bedding, pipe cradles, and pipe hangers. Concrete encasement involves surrounding the pipe with a layer of concrete to provide additional strength and stability. Pipe bedding involves placing a layer of granular material underneath the pipe to distribute the load and prevent excessive deflection. Pipe cradles are structures that support the pipe from underneath, typically made of concrete or steel. Pipe hangers are used to suspend the pipe from above, typically attached to a structure or support system. These supports help ensure the stability and longevity of underground steel pipes.

Send your message to us

*Email

*TEL

*Quantity

*Unit