ERW Steel Pipe

Tianjin Lefin Industrial Co., Ltd is one of the most experienced manufacturers and suppliers of erw steel pipe in China. Please feel free to buy high quality erw steel pipe from our factory. Good service and reasonable price are available.

ERW (electric resistance welding) steel pipe is made by rolling a series of steel coils into a cylindrical shape and then welding them together using an electric current to form the final product. This process produces a high-quality, durable pipe that has a number of physical characteristics and advantages.

physical characteristics&Advantages:

1.strength. Because it is made from high-quality steel and has been welded using an electric current, it is very strong and can handle a great deal of pressure and weight. Additionally, because it is made from one continuous piece of steel, there are no weak joints or seams that could compromise its structural integrity.

2.versatility. It is commonly used in a wide range of industries, including construction, oil and gas, and water treatment, as well as in electrical systems and for transportation purposes. This is because it can be easily cut to length, welded into different shapes and sizes, and used in a variety of applications.

3.highly resistant to corrosion, which is a common problem in many pipes and other metal structures. This is because the electric current used in the welding process removes any impurities from the steel, which helps to prevent corrosion from occurring.

affordability, ease of installation, and durability. It is also more environmentally friendly than traditional steel pipe, as it produces less waste during the manufacturing process.

Usual Standards:

1. ASTM A53 – This standard covers seamless and welded black and hot-dipped galvanized steel pipes in sizes from 1/8” to 26”. It is widely used in low pressure conveyance of gas, air, steam, oil, and water.

2. API 5L – This standard specifies the manufacturing and testing of seamless and welded steel pipes for pipelines used in the transportation of oil, gas, and other fluids. It covers pipes in sizes from ½” to 48” with various wall thicknesses.

3. EN 10219 – This European standard specifies the technical delivery conditions for cold-formed welded structural hollow sections of non-alloy and fine grain steels. It applies to square, rectangular, circular, and elliptical hollow sections.

4. JIS G3454 – This Japanese standard specifies the carbon steel pipes used for pressure service at an approximate maximum temperature of 350 degrees Celsius. It covers pipes with wall thicknesses up to 35 mm in sizes from 10.5 mm to 660.4 mm.

5. BS 1387 – This British standard specifies requirements for screwed and socketed steel tubes and tubulars for ordinary use in water, gas, and air conveyance. It covers tubes in sizes from 4 mm to 150 mm in various thicknesses.