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Sep 01, 2020 · High temperature mechanical properties of high strength structural steels Q550, Q690 and Q890 Fire Technol. , 54 ( 2018 ) , pp. 1609 - 1628 , 10.1007/s10694-018-0760-9 CrossRef Google Scholar Q345 Steel Specification and Equivalent StandardQ345 steel specification:Q345 steel belongs to 16Mn steel grade, usually it is produced in hot rolled state, hot rolled steel plate, hot rolled steel coil/sheet, it has comprehensive mechanical and welding property, as it shows good performance in structural purposes, it is widely used as welding structural part in manufacturing of ship, railway and vehicles, bridges, boiler,
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