What is heat treatment of S355J0 carbon steel plate sheet

The size, shape, weight and allowable deviation of Q390D, Q390D-Z35 steel plate should comply with the provisions of GB/ T709-2016. The maximum thickness of the steel plate is 135mm. When the S355J0 carbon steel plate sheet, Q390D steel, Q390D-Z35 plate thickness is less than 100 mm, the required performance level in the thickness direction is z25; when the thickness is ≥ 100 mm, the required performance level in the thickness direction is Z35, which shall specifically comply with the provisions of GB/T5313-2010.

Online Industrial Metal Supply, S355J0 carbon steel plate sheet Direct Factory Price 55*2500*12000, 55*2500*12000, 56*1890*12000, 50*2600*7940, 68*2300*3500, 77*1300*12200, 55*1600*6000, 50*1700*6000, 81*2010*3000, 70*2500*12000, 80*2020*7932, 68*3030*11300, 80*1150*3950, 70*2500*12000, 65*2500*10350, 80*1655*7260, 80*1000*3950, 90*3120*9800, 80*2500*12000, 120*3030*7400, 85*2800*3400, 100*2400*10000, 140*2300*11500, 148*2780*6930.

The hot rolling method is to heat the S355J0 carbon steel plate sheet steel material to about 1000 ℃ ~ 1250 ℃ and use the rolling mill to roll it. The traditional hot rolling process is generally divided into the following two steps: the first step is to use the primary rolling mill or billet rolling mill to roll the ingot, billet or continuous casting billet into a certain shape and size of billet. This kind of S355J0 carbon steel plate sheet rolling process is usually called semi-finished product production, also called blank production.

According to the new report of the World Steel Association (worldsteel), the world crude steel production for the 64 countries has reached to143.3 million tonnes (Mt) in February 2020, a 2.8% increase compared to February 2019. China’s S355J0 carbon steel plate sheet, crude steel production for February 2020 was 74.8 Mt, an increase of 5.0% compared to February 2019. India produced 9.6 Mt of crude steel in February 2020, up 1.5% on February 2019. Japan produced 7.9 Mt of crude steel in February 2020, up 2.2% on February 2019.