Effect of tempering temperature on microstructure of EH40 high-strength ship plate steel

68 mm thick EH40 high-strength ship plate steel were studied by optical microscope, scanning electron microscope and mechanical property testing equipment . […]

Microstructure and properties analysis of hot- rolled FH550 grade ultra-high strength steel

The results show that the strength and plasticity of the rolled steel meet the requirements of the classification society. After two-stage rolling, the low-temperature toughness at 1/4 width of the steel plate is better, the ductile-brittle transition tem […]

Effect of Surface Oxide Scale on Corrosion Resistance of Class A Ship Plate Steel

Using the neutral salt spray corrosion test, the corrosion resistance of the corroded steel with and without scale on the surface was tested in NaCl medium. […]

FH36 low temperature resistant high strength ship plate steel

This paper introduces the practice of Laiwu Steel's trial production of FH36 low temperature resistant high strength ship plate steel. By designing reasonable chemical composition and adopting LF+RH double refining process to smelt, TM-
CP process rolli […]

Influence of Heat Treatment Process on Microstructure and Properties of NV-F690 Ship Plate Steel

A low-carbon copper-containing NV_F690 steel was studied on the phase transformation law of continuous cooling , and a new process ( DQ - .T ) was designed , The microstructure and properties of the test steel under the conditions of traditional quenching […]

Research and development of E36-Z35 ship plate

With the development of the shipbuilding industry, my country has become one of the major shipbuilding countries, and the demand for ship plates is increasing year by year. […]