hardox 450 steel grade Vs 301 Stainless Steel

We have Hardox 450 steel grade, marine steel CCS AH36 hot rolled plates 300tons in Shanghai stock. Specification: 12*1800*8000, 15*2100*8400, 15.5*3150*8200, 12.5*2380*7500, 21.5*2540*5200, 29*2160*6010, 17*1980*5720, 15.5*1700*8400, 18*2300*6750, 18.5*2680*8800, 14.5*1800*6500, 11*1890*6960, 17.5*1500*6790, 13.5*1900*6050, 14.5*1750*8300, 12*1830*9220, 13.5*1900*6050, 14*2000*6000, 13*2470*7780, 13*3020*6700, 12*1610*11240, 19*2090*7070, 14*1820*6500.

Special boiler steel is derived from carbon structural steel. The chemical composition of boiler steel is basically the same as that of high-quality carbon structural steel of the same level, but the Hardox 450 steel grade steel mechanical property requirements are more strict, especially for impact toughness. And the aging sensitivity is required to be small. The boiler steel should be deoxidized and the non-metallic inclusions should be removed during smelting. The structure should be uniform. The grain size should be controlled in 3-7 grades. The defects such as interlayer, shrinkage, porosity and porosity should be minimized.

Tempering includes high temperature tempering, medium temperature tempering and low temperature tempering. Tempering means to reheat the Hardox 450 steel grade quenched steel to a certain temperature and then cool it in a certain way. Tempering can reduce or eliminate the internal stress produced by quenching, reduce the hardness and strength, and improve the ductility or toughness of steel. After Hardox 450 steel grade quenching, the workpiece should be tempered in time, and the required mechanical properties can be obtained through the combination of quenching and tempering.

We are leading supplier of pipeline steel. The pipeline steel in usually in forms of pipeline steel coils, pipeline steel sheet, pipeline steel plate and pipeline steel pipes. And the most popular standard is API 5L. For questions about Hardox 450 steel grade pipeline steel, such as X70 steel properties, API 5L X42 steel properties, difference between API 5L PSL1 and API 5L PSL2, API 5L grade B steel price, please feel free to communicate with us.

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