Submerged Arc Welded Steel Pipe

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

Submerged Arc Welded (SAW) steel pipe is a type of pipe that is welded using an electric arc submerged in a granular flux. This method of welding is commonly used for the manufacture of large-diameter steel pipes for various industries. SAW steel pipe has several physical properties and advantages that make it a preferred choice for many applications, including construction, oil and gas, transportation, and water treatment.

These pipes are generally produced using two types of welding methods: double submerged arc welding and electroslag welding. They come in various types and specifications as per the requirements of the specific application.

The specifications of SAW pipes are commonly divided into two types: straight seam welded pipes and spiral welded pipes.

Straight seam welded pipes are often used in industries such as construction, transportation, and oil and gas,

whereas spiral welded pipes are preferred in water treatment and sewage disposal industries.

The international standards for SAW pipes include API 5L, ASTM A53, ASTM A252, ASTM A139, and ASME B36.10M. These standards specify the dimensions, chemical composition, and mechanical properties of SAW pipes. They also define the requirements for testing, inspection, and certification of the pipes.

The steel grades used in SAW pipes vary depending on the specific application. For example, ASTM A53 grade B is commonly used for water lines, while API 5L grade X65 is preferred for oil and gas pipelines. Other commonly used steel grades include ASTM A252 grade 2 and 3, and ASTM A139 grade B.

One of the key physical properties of SAW steel pipe is its high strength. This type of pipe is made from high-quality steel that has been treated to enhance its strength and durability. SAW pipes are capable of withstanding high pressure, making them ideal for use in the transportation of fluids and gases.

Another advantage of SAW steel pipe is its excellent corrosion resistance. The granular flux used during the welding process creates a protective layer on the steel surface, which prevents rust and other forms of corrosion. This makes SAW pipes ideal for use in harsh environments, such as offshore oil rigs or chemical processing plants.

In addition to its physical properties, SAW steel pipe has several other advantages. For example, it is easy to manufacture in large quantities, making it a cost-effective choice for many applications. SAW pipes also have a long service life, which helps to minimize maintenance and replacement costs.