How to identify the quality of steel strapping

How to identify the quality of steel strapping ?

Steel strapping is widely used in the industry. For customers, quality is the most important.

But how to identify the quality of steel strapping?

In fact there are many methods to check the quality.

If we want to see the quality by eyes. We can check the surface is smooth or not.Whether the edges are rounded？

Packing is also a way to check the whole quality of a manufacturer.

Of course, the professional method is to test the tensile strength, elongation,max load, also the painting coat thickness.

Chemical composition is the way to check the raw material, different steel grade with different content.