Hot strip requirements for DSAW steel pipe: control the chemical composition of the hot rolled strip is mainly to reduce the carbon content of parathi...
Hot strip requirements for DSAW steel pipe: control the chemical composition of the hot rolled strip is mainly to reduce the carbon content of parathion, and appropriate to add titanium, vanadium, niobium content. Reduce the carbon content, can effectively improve the steel weldability; reduce sulfur content in the steel to improve the toughness of lsaw steel pipe and crack injection of only useful, but also reduce sulfide buildup, improving crack resistance of steel, At the same time, reduce the sulfur content may improve the surface quality of the steel strip. For phosphorus steel toughness and weldability are harmful, compared to other common elements in steel, phosphorus strongly improved Charpy impact transition temperature Katsuya have a strong influence on the hardenability and reduce the phosphorus content can directly improve weldability, because some hot-rolled steel strip phosphorus content as low as possible.
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.
