The ability of metal materials to resist the indentation of the surface of hard objects is called hardness according to different test methods and application ranges. The hardness can be divided into Vickers hardness, Shore hardness, Brinell hardness, Rockwell hardness, microhardness, and high tempe

In the production process of stainless steel welded pipe, intermediate heat treatment and finished heat treatment can be carried out. Because a bright surface without oxidation can be obtained, the traditional pickling process is eliminated. The use of this heat treatment process not only improves t

Product name: coated steel pipeMaterial: Carbon steelSize: 850*6*11800mmStandard: API 5CTQuantity: 2860 tonsMany cooperations have given the customer full confidence in THREEWAY STEEL.

The selection of welding method of the thick-walled steel pipe should be selected according to the material and wall thickness of the thick-walled steel pipe. Because different welding methods have different arc heat and arc force, different welding methods have different characteristics. For exampl