Grades of ERW steel pipes

ERW steel pipes are extensively used across various industries for transporting fluids and gases such as oil and natural gas, as well as in structural applications. They can meet a wide range of high and low-pressure requirements. Known for their high strength, durability, and cost-effectiveness, these pipes are a popular choice for many applications. Below, we will explore the different grades of ERW steel pipes to better understand their properties.

Grades of ERW Steel Pipe:

ERW steel pipes come in various grades to meet the specific needs of different applications. The selection of the appropriate grade depends on factors such as intended use, operating conditions, and environmental considerations. Some common grades of ERW steel pipe include:

- ASTM A53 Grade A/B:

ASTM A53 Grade A/B is widely used in general structural and pressure applications. It is suitable for welding, bending, and flanging, making it ideal for various construction and engineering purposes. ASTM A53 Grade B ERW is particularly popular. These pipes can be bare, hot-dipped, or galvanized and are manufactured through welding or seamless processes. In the oil and gas sector, Grade A53 pipe is often used in structural and non-critical applications.

- API 5L Grade B/X42:

API 5L is a standard specification for line pipes, detailing manufacturing processes, chemical composition, mechanical properties, and other requirements for seamless and welded steel pipes. API 5L Grade B and X42 are commonly used in the natural gas and oil industries to transport gas, water, and oil. Other grades of ERW line pipes include X46, X52, X56, X60, X65, X70, and more.

- ASTM A135:

This specification covers two grades of electric resistance welded steel pipes used for conveying gas, steam, water, or other liquids. Due to its high corrosion resistance and pressure resistance, it is commonly used in fire sprinkler systems.

- ASTM A178:

ASTM A178 ERW steel pipes are widely used for boiler tubes and heat exchanger tubes. With excellent surface quality and mechanical properties, they are suitable for high-temperature and high-pressure applications.

- EN10217:

This European standard specifies the requirements for longitudinally welded steel pipes for pressure purposes. It includes grades such as P195, P235, and P265, suitable for various pressure levels and temperatures.