The tensile strength of seamless steel pipe is more than 8-10 times of that of ordinary steel, and its elastic modulus is better than that of steel, with excellent creep resistance, corrosion resistance and seismic resistance; the mechanical performance of seamless steel pipe is excellent, easy to machine, etc.; the seamless steel pipe ASTM A573 steel sheet is highly elastic, reused in mechanical equipment, memoryless, deformation free, and antistatic.
Quenching Improve the hardness of ASTM A573 steel sheet steel, Annealing is refine the grain size, homogenization, reduce hardness, improve the plasticity and eliminate interna stress. Normalizing refine grain , improve the impact toughness of ASTM A573 steel sheet steel and comprehensive mechanical properties.
In order to obtain the seamless tube with smaller size and better quality, the method of cold rolling, cold drawing or the combination of the two must be used. Cold rolling is usually carried out on a two high mill, and ASTM A573 steel sheet pipes are rolled in a circular pass composed of a variable cross-section circular groove and a fixed conical head. Cold drawing is usually carried out on single chain or double chain cold drawing machines of 0.5-100t.
Cleveland cliffs announced on March 13 that it had completed the acquisition of AK ASTM A573 steel sheet steel, foreign media reported In the transaction of holding), shareholders of Cleveland cliffs and AK steel respectively voted on the US billion acquisition agreement at their respective shareholders' meeting to complete the resolutions required for the announcement of acquisition of AK steel ASTM A573 steel sheet at the beginning of the year. The acquisition is Cleveland cliffs' first foray into steel manufacturing.
