The iron oxide defects on the surface of S690QL high tensile steel

Carbon steel mainly refers to the steel whose mechanical properties depend on the carbon content in the S690QL high tensile steel steel, and generally does not add a lot of alloy elements, sometimes it is also called ordinary carbon steel. Carbon steel refers to iron carbon alloy with carbon content of WC less than 2%. In addition to carbon, carbon steel generally contains a small amount of silicon, manganese, sulfur and phosphorus. According to the content of phosphorus and sulfur, the carbon steel can be divided into ordinary carbon steel, high quality carbon S690QL high tensile steel steel, high quality steel and super quality steel.

Non-secondary S690QL high tensile steel product hot selling: 26*1500*9950, 23.5*2040*8100, 24*1500*6700, 23.5*1640*6550, 29*2140*7700, 30*1500*6000, 24*2000*9550, 26.5*2000*7000, 26*1600*6000, 32*1570*6000, 32.5*1560*6250, 25.5*1300*6000, 27*2550*6800, 27.5*2700*5500, 33*2340*6700, 34*1300*4000, 25.5*1740*8700, 29*2550*9000, 29*2870*12000, 26*1300*8100, 32.5*3050*6500.

According to the data released by the world iron and Steel Association, the world pig iron production in March 2020 was 103 million tons, a year-on-year decrease of 3.5%, a year-on-year increase of 1.8% in February, and the overseas pig iron S690QL high tensile steel production excluding China was 36.309 million tons, a year-on-year decrease of 11%.

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