1, Defective square structural steel pipe because the processing is not in place, the appearance will be a lot of glitches, and these burrs will be ve...
1, Defective square structural steel pipe because the processing is not in place, the appearance will be a lot of glitches, and these burrs will be very simple scratches the pipe surface, so the first identification method came out, there are many scratches on the exterior of the Is the quality of the poor.2, Defective side tube manufacturers in order to reach a large negative public service will increase the amount of product processing when the reduction, and this will result in products of fine and low cross-ribs, so if you find such a situation, then the best side do not buy.3, So called square structural steel pipe is because the cross-section of the pipe is square, and poor side of the pipe in this regard is not in place will make the pipe section of the oval-shaped cross-section.4, Residual side tube is basically not able to reach the standard specifications, so when you buy with a professional ruler about the volume can be briefly resolved.
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.