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What is the reason why cold-rolled steel pipe cracking

There are many reasons for cracking cold-rolled steel pipe, the following are some common reasons:

First, reducing the wall too much. Cold-rolled steel pipe is usually used for the outer diameter of 50mm perforation, but to do the outer diameter of 25mm, the reduction is half.

Reducing the amount is too large. Resulting in increased hardness of cold-rolled steel pipe. Such finishing is prone to cracking situation.

Second, the tube material quality is poor. The quality of round bar is crucial for cold rolled steel pipe. It is recommended to use dimensional steel, steel and other large steel tube.

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