According to the market forecast released by Eurofer on August 5, the output of all ASTM A709 bridge steel plate steel consumption industries in the European Union will drop by 12.8% in 2020, and rise by 8.9% in 2021. However, the European Union said that the government's "awesome strength" support will reduce the ASTM A709 bridge steel plate steel consumption intensity in the construction industry significantly less than other industries.
The wear-resistant composite plate, ASTM A709 bridge steel plate should be pre heat treated to eliminate the residual stress produced in the machining process. If conditions permit, vacuum heating quenching and cryogenic treatment after quenching should be selected as far as possible. On the premise of ensuring the hardness of steel plate, pre cooling, step cooling and quenching or high temperature quenching should be selected as far as possible. For some wear-resistant composite plates, pre heat treatment, aging heat treatment and quenching, tempering and nitriding heat treatment can be used to control the accuracy of the wear-resistant composite plate.
Medium plate ASTM A709 bridge steel plate products size: 5.5*2250*11550, 5*2200*10100, 5*1500*4500, 6*1750*13000, 5*2700*12050, 5*2700*12050, 6*1800*5500, 6*1550*6000, 9*2000*6000, 5.5*2600*10100, 5*2500*11000, 7*1800*10450, 6*3080*6000, 9*2000*9000, 5.5*2600*11850, 6*3320*5000, 9*1760*7800, 6*3370*4100, 9*2400*9800, 7*1970*7050, 6*3240*5400, 9*1800*10000, 6*3380*4800, 7*2120*6400 and 9*2400*8500.
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