AUSTENITE HIGH MANGANESE STEEL

摘要

The method is for manufacturing high manganese having good workability and strength for outer panel of car and devices of electron. The composition comprises: carbon of below 0.70 wt.%; and Mn and Al having composition of area that is surounded by A, B, C, D; Fe as remainder; and impurity. The obtd. steel has 50-70 kg/mm2 of tensile strength and 19-26 kg/mm2 of yield strength and 40-68 % of elongation. The obtd. steel is useful for decreasing weight and improving stability of car, compared to a commercial ultra low carbon steel.