How to Identify The Quality of Alloy Steel Pipe?

In the purchase of steel pipe, the most important is identification of pipe quality, if you do not know how authentication method, it is possible to buy low-quality steel, which will have a greater impact for later use.

Shoddy steel pipe diameter size has big fluctuations, the reason have three kinds. First, steel temperature is unstable to cause different surfaces; second, the composition of the steel is uneven; third, due to poor equipment, low-foundation strength, or big mill bouncing, there will be a large change in the same week, such steel is easy to produce fracture because of discontinuity.

However, components of high-quality steel is uniform, cold shear tonnage is high, cut surface is smooth and tidy, shoddy materials section is uneven, and no metallic luster.

In addition, we should have a certain understanding for steel production materials, we can also view the quality of alloy steel pipe from the production material.