The supply and demand of pipe S690QL will be weakly balanced in the short term

The company has allocated special environmental protection facilities for all pipe S690QL pollution sources, strengthened the recycling of waste resources and improved the efficiency of resource utilization. At present, the recovery and utilization rate of solid wastes such as iron slag, steel slag, iron bearing dust, pipe S690QL steel mill scale, environmental protection dust has reached 100%.

Mg element can reduce the number, size, distribution and morphology of inclusions in steel such as pipe S690QL. Micro Mg can improve the size and distribution of carbides in bearing steel. And the carbide particles of bearing steel containing magnesium are fine and uniform. When Mg content is 0.002% - 0.003%, the tensile strength and yield strength of the steel increase by more than 5%, and the plasticity remains basically unchanged.

The purpose of alloying Q345B steel is to use the interaction of alloy elements with iron and carbon and the effect on iron-carbon phase diagram and the heat treatment of steel to improve the structure and properties of steel. Interaction of alloying elements with iron and carbon: After alloying elements are added to steel, they mainly exist in steel in three forms. That is: forming a solid solution with iron; forming carbides with carbon; and possibly forming intermetallic compounds in high alloy steels, pipe S690QL.

Previously, the coke market was both prosperous in supply and demand, and steel mills' blast furnaces were limited by the environmental protection restrictions in autumn and winter. The operating rate continued to be high, and the demand for coke remained unabated. With the continuous advancement of the coking capacity reduction process, the price of metallurgical coke will be in a price increase channel for a long time, and the mismatch of supply and demand is difficult to alleviate in the short term.

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