ASTM A106 ASME SA106 API 5L Welded Gas Transmission Pipeline

ASTM A106 ASME SA106 API 5L Welded Gas Transmission Pipeline

Welded pipes are produced by shaping flat steel (steel plate or steel sheet) to cylindrical shapes through mechanical pressure and then the seam is joined through welding. Quarto plate ( which is also known as reversing mill plate) is largely used in the industry for the production of welded pipes. Moreover, hot-rolled coils are also used as a substrate for the production of welded pipes and tubes. Welded pipes are also known as ERW (Electric Resistance Welded) pipe.
Types of Welded Pipes:
Spiral Welded Pipes
The weld or seam in these pipes is in the form of a spiral. Plate or sheet is shaped into spiral form through using submerged arc welding (SAW) process. These pipes are usually are in large diameters forms and mostly used as long-distance pipelines in the energy sector as well as many other sectors such as structural engineering.
Longitudinal Welded Pipes
In these pipes, the weld is made in longitudinal directions. Plates or sheets are curved and electric resistance arc welding is used in the longitudinal directions to join the seams. When a plate is of higher thickness, longitudinal submerged arc welding is also used for making such pipes.
These pipes are made after curving the steel plate in the form of pipe and performed the welding in a longitudinal direction. Mostly electric resistance welding is performed in the manufacturing of these pipes. LSAW is also used in making these pipes.
Welding Steel Pipes Types
Furnace Weld (FW) or Continuous Weld is a unique weld method to produce pipe with minimum welding defects. The process is comparatively costly. The pipe is welded by heating it in a furnace at the welding temperature followed by extrusion over a mandrel. High-performance pipes like those used in boilers are sometimes made through this process.
Submerged arc weld (SAW) is much common in the industry. The electric arc and weld are completely submerged in the fused granular flux and remain protected from oxidation during the process. In the spiral pipes, it is known as S-SAW or HSAW while in longitudin

Hebei Huayang Steel Pipe Company Ltd. is the largest ERW and LSAW steel pipe manufacturer in Northern China. Established in 2005, we have a modern factory covering an area of 666,000 square meters, with over 700 employees and a fixed asset of 200 million USD, annual output capacity is up to 1,000,000 Tons. We can quickly fulfill all of our domestic and international customers’ orders, try our best to meet customers’ requirements.

We are located in Cangzhou city, Hebei province, a large steel production base in Northern China. Huayang is near to the raw material steel mill, such as Hebei Zhongtie Equipment Company, Shandong Iron and Steel Co., Ltd, Shougang Group, Jinxi Group, which reduce the material cost. At the same time, Huayang is 210 kilometers from Beijing, 150 kilometers from Tianjin City, 160 kilometers from Xingang port, with convenient transportation, which is convenient for customer’s visit and reduce the transportation cost. With lower material cost control, we can offer more competitive price and significant profit for our customers.

Huayang use advanced imported production equipment such as German once-through rolling machines, British CT METORI digital controllers, one φ114.3mm-φ168.3mm ERW steel production line, three φ219mm-φ426mm ERW steel pipe production line, one φ426mm-φ660mm ERW steel pipe production line, one JCOE production lines for LSAW pipe, size range from 16” to 56” (406.4mm-1422.4mm), wall thickness: 9.53mm-50mm. In 2018, we build a new advanced RBE production line for LSAW pipe, size range from 16” to 56” (406.4mm-1422.4mm), wall thickness: 9.53mm-30mm.

Twenty φ245mm-φ820mm thermal expansion pipe production lines, we have our own high-tech physics and chemistry labs where we can conduct our own tests such as physical properties and chemical composition test, and as well, UT, hydraulic test, X-ray and other test equipment is available, which can meet all related standards and inspection requirements.

In order to provide One-Stop service for customers with superior products from qualified supplier, Huayang set up branch company, Cangzhou Wingo International Trading Co., Ltd in 2013, to help customers purchase different products, such as seamless steel pipes, SSAW steel pipes, Galvanized pipes, Anti-corrosion pipes, pipe fittings and flanges etc.

Huayang steel pipes are used as the construction material and the pipelines for oil, gas, water, steam, and other middle & low hydraulic pressure fluids. Huayang’s products are sold nationwide and mainly exported to Southeast Asia, Middle East, South America, Africa, North America and Europe. Our company has consistently aimed to provide our customers with high quality, affordable industrial pipes. “Huayang” brand steel pipe has gained praises and high reputation from all of the world.