marine grade steel hot rolled flat bar price

marine grade steel hot rolled flat bar price

DH690 plate is a steel plate with a thickness of no more than 150 mm for the manufacture of ships, fishing vessels and marine engineering structures in ocean, coastal and inland navigation areas. The marine grade steel, DH690 steel plate with Z-direction requirements is suffixed with Z25 and Z35, which is used as ultra-high strength ship and marine engineering structural steel. Chemical composition of DH690 steel plate: C ≤ 0.21, Si ≤ 0.55, Mn ≤ 1.7, P ≤ 0.025, S ≤ 0.025, N ≤ 0.02.

The company will regularly hold the award ceremony for excellent employees. he award-winners prove their excellence and the team’s excellence with marine grade steel great achievements.On Oct., 2018 the Management star is Ms. Sherry from International Trade Department. The sales star is Ms. Katrina from International Trade Department. Under the guidance of Ms. Sherry, the old customer maintenance team of marine grade steel BBN steel completed 309% sales task in Oct., 2018. Ms. Katrina has been using her own actions to interpret the "pursuit of excellence, continuous innovation" spirit of BBN enterprise.

Many people will mix strip steel and steel plate together, which can usually be distinguished from the following points. First of all, the thickness of the steel plate is much thicker, and the thinner the strip steel is required, the better. Secondly, in appearance, the steel strip can be crimped and the steel plate is too thick to bend, even if it is bent, it is difficult to recover, because it is easy to break if it is bent too much. Thirdly, the strength of marine grade steel, steel plate is higher than that of strip steel. The steel plate is suitable for construction engineering, while strip steel is only suitable for processing into hardware products.

The strengthening mechanisms in metals mainly include solid solution strengthening, dislocation strengthening, fine grain strengthening, and second phase (precipitation and dispersion) strengthening. Alloying elements have the most significant strengthening effect on steel in the quenched and tempered state, because it makes full use of all four strengthening mechanisms. Martensite is formed during quenching, and carbides are precipitated during tempering, resulting in a strong second phase strengthening and greatly improving toughness. Therefore, obtaining martensite and tempering it is the most economical and effective comprehensive strengthening method for marine grade steel.

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