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After welding, cooling and shrinkage can be uniform at the same time, so as to significantly reduce the ASTM A588 Grade C weathering steel plate welding stress and welding deformation. Post-welding heat treatment of ASTM A588 Grade C weathering steel plat
Full annealing. The process of heating Q295NH steel plate to 30~50℃ above AC3, complete austenitizing, followed by slow cooling, and obtaining near equilibrium microstructure is called complete annealing. Mainly used for medium carbon carbon steel and med
The purpose of Q295NH weathering steel plate annealing is as follows: reduce the hardness of Q295NH weathering steel plate, improve the plasticity, in order to facilitate cutting and cold deformation processing.
Reduce or eliminate the internal stress of JIS G3114 SMA 50 AW steel plate during quenching to prevent deformation and cracking of workpiece. The toughness of JIS G3114 SMA 50 AW steel plate was improved by tempering, and the strength and hardness of JIS
The purpose of quenching is to improve the hardness, strength and wear resistance of EN10025-5 S235J2W steel plate, and give full play to the performance potential of EN10025-5 S235J2W steel plate. However, quenched martensite is not the final structure r
Low and medium carbon steel and EN10155 S355J0W weathering steel plate are normalized to improve cutting performance. As the production cycle of EN10155 S355J0W weathering steel plate normalizing is shorter than annealing and the operation is convenient,
In the flame cutting process of EN10155 S355J0W weathering steel plate, the height of the cutting nozzle to the working surface is one of the main factors that determine the cutting quality and cutting speed. When using cutting nozzles with different para
Ni: nickel is also one of the elements to improve the weather resistance of ASTM A588 grade B steel plate, which can promote the formation of stable rust layer and also improve the welding performance of ASTM A588 grade B steel plate. However, too much ni
Manganese is the necessary element for deoxidation in the process of making ASTM A588 gr. C steel plate. The strength of ASTM A588 gr. C steel plate can also be improved by solution strengthening. In order to achieve enough high tensile strength, the mang
EN10025-5 S355J2WP weathering steel plate is designed with low carbon composition. The high carbon content is unfavorable to the impact toughness of steel, especially the impact energy of EN10025-5 S355J2WP weathering steel plate, and obviously damages th