56 Inch API SPEC 5L PSL1 PSL2 LSAW Steel Pipe For Gas Pipeline

56 Inch API SPEC 5L PSL1 PSL2 LSAW Steel Pipe For Gas Pipeline

API SPEC 5L PSL1,PSL2 LSAW Steel Pipe Used For Conveying Gas, Water And Oil

LSAW steel pipe, say, longitudinal submerged arc welding pipe, is using double-sided submerged arc welding process, welding in static conditions, thus can get high weld quality, short weld seam, low probability of potential defects. Expanding diameter through whole length. Appearance well, size precision, wide range of steel tube wall thickness and pipe diameter , range of diameter up to 457.2-1422.4 mm diameter, wall thickness 9.5-27 mm, higher degree of automation, compared with seamless steel tube, the production cost is lower, suitable for upright load bearing, large span construction structure and wind and earthquake resistant electricity tower mast structure of buildings, Bridges, DAMS, offshore platform etc.

The pipeline corrosion mechanism and causes

1. The chemical corrosion

Chemical etching is refers to the metal surface and the dielectric damage caused by the pure chemical action between directly. Its characteristic is under certain conditions, the electrolyte of oxidizer and metal atoms interact with each other and form on the surface of the corrosion products, corrosion in the process of electronic passed directly between the metal and oxidant, no current is generated. Usually not metal at room temperature and dry air corrosion, it is easy to oxidation at high temperature, generating a layer of oxide film (Fe0, Fe203, Fe304), the decarburization phenomenon will happen at the same time.

2. The electrochemical corrosion

Electrochemical corrosion is refers to the metal surface and the ion conductive medium damage as a result of the electrochemical action, its characteristic is that electrochemical corrosion process can be divided intoTwo relatively independent and can simultaneously process. In the pipeline corrosion electrochemical corrosion is the most common, the most common.

3, The bacteria corrosion

When containing sulfate in the soil under the condition of oxygen sulfate-reducing bacteria RB) will quickly move, they take advantage of organic matter on the surface of the metal as a carbon source, and USES of the formation of hydrogen in the bacterial biofilm and sulfate-reducing into sulfide, survive the energy from the REDOX reaction. Not only can promote the anode of sulfate reducing bacteria metabolites depolarization effect, make the corrosion, and its potential is lower than iron, and form a new corrosion cell.

1. Out diameter: 457.2mm - 1422.4mm (18"-56")

2. Thickness: 9.5mm-27mm

3. Length: 6m-12.5m

4. Type: LSAW (Longitudinal Submerged-Arc Welded), DSAW (Double Submerged-arc welded) Steel Pipe

5. Manufacturing Process: UO(UOE), RB(RBE), JCO(JCOE,COE)

6. Standard: API SPEC 5L (ISO 3183), GB/T 9711.1, GB/T 9711.2, GB/T 9711.3

7. Uses: for conveying gas, water and oil, in the oil or natural gas industries

8. Chemical Analysis (%):

1.Chemical composition in % For API 5L PSL1

2.Mechanical Properties for API 5L PSL1

3.Chemical composition in % For API 5L PSL2

4.Mechanical Properties For API 5L PSL2

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.