Some information about big diameter DSAW
The use of LSAWLSAW steel pipe has large diameter and wall thickness, resistance to high pressure, resistance to low temperature and strong corrosion characteristics.When constructing high strength and toughness, high quality oil and gas pipeline over long distances,what is required is mostly large caliber straight double submerged arc welding joints. According to the API standard provisions,,LSAW is the only designated for tube type when passing through the cold region, submarine, the urban population dense area of 2 kinds, 1 region in the large oil and gas pipeline.
Size:LSAW, DSAW: Outer Diameter: 219mm-1820mmWall Thickness: 5.0mm-50mmLength: 6mtr-18mtr
StandardBS:1387, EN10217:S185, S235,S235JR, S235 G2H, S275, S275JR, S355JRH, S355J2H, St12, St13, St14, St33, St37, St44, ST52,ASTM A 53,API 5L,
Surface: Lightly oiled, Hot dip galvanized, Electro galvanized, Black, Bare, Varnish coating/Anti rust oil, Protective Coatings (Coal Tar Epoxy, Fusion Bond Epoxy, 3-layers PE)
Test:Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yieldstrength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test.Mill Test Certificate:EN 10204/3.1BThird party inspection:SGS, BV, Lloyds etc.
If you would like to know more about LSAW steel pipe,pls contact:Hunan Great Steel Pipe Co.,ltd
Difference of PSL1 and PSL2(API 5L)
The API 5L has two standards, PSL1 and PSL2, which are very different from each other. I'll talk more about the differences between PSL1 and PSL2.
Production Process of Pipe Fitting
There are many kinds of processing methods for pipe fittings.
The Future of Steel Pipe Development
The future of steel pipe development is looking promising, according to expert analysis and data. The price of carbon steel pipe is predicted to bounce back this year, with China leading the way in increasing steel consumption demands. This is due to a series of government initiatives aimed at stimulating domestic demand, including the construction of affordable housing and infrastructure projects. The demand for structural steel pipe is also on the rise, thanks to state investment in housing and engineering projects. With private investment projects also gaining popularity, the steel pipe market is set to thrive in 2017.
