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Hardness test of ERW steel pipe
Source :admin   Time:3/27/2018 10:59:02 PM   hit:

  ERW Steel Pipe is formed by bending the steel plate or steel strip, and then made by welding. According to the form of weld, it is divided into ASTM A106 Black ERW Steel Pipe and ASTM A53 Black ERW Steel Pipe. General ERW Steel Pipe: General ERW Steel Pipe is used to transport low pressure fluid. It is made of Q195A, Q215A and Q235A steel. Also can use other steel easy welding manufacturing. The steel pipe should carry out the test of water pressure, bending and flattening. There is a certain requirement on the surface quality, usually the delivery length is 4-10m, and the delivery is often required. The specification of the ERW Steel Pipe is expressed in nominal caliber (millimeter or inch). The nominal diameter is different from the actual one. The ERW Steel Pipe has two kinds of common steel pipe and thickened steel pipe according to the specified wall thickness, and the steel pipe is divided into two kinds according to the pipe end form, which are threaded and non threaded.

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