Composition analysis of Mn15Cr1 high manganese steel

Mn15Cr1 steel is a high manganese nonmagnetic wear-resistant steel superior to Mn13.

It can be seen from the figures that Mn15Cr1 and Mn18Cr2 ultra-high manganese steels are made by further increasing the content of carbon and manganese on the basis of Mn13, and adding chromium at the same time. The increase of carbon content can improve the wear resistance of the alloy, and the increase of manganese content can improve the solid solubility of the alloy and the impact toughness of ultra-high manganese steel. After adding chromium element to high manganese steel, chromium alloy cementite (Fe, Cr) 3C is formed, which is more stable than cementite Fe3C. The alloy cementite is distributed in the steel, which makes the high toughness austenitic matrix distributed with dispersed carbide hard spots, thus improving the hardening effect and strengthening the wear resistance. After the content of carbon, manganese and chromium is properly increased, the initial hardness of ultra-high manganese steel after water toughening treatment is higher than that of conventional high manganese steel, and the work hardening rate is also significantly increased.