ARMOR PLATE WITH 2000MPA-GRADE TENSILE STRENGTH, AND MANUFACTURING METHOD THEREFOR

摘要

An armor plate with 2000MPa-grade tensile strength and 600-grade Brinell Hardness, and a manufacturing method therefor. Mass percentages of chemical elements of the armor plate are as follows: C: 0.35 to 0.45%; Si: 0.80 to 1.60%; Mn: 0.3 to 1.0%; Al: 0.02 to 0.06%; Ni: 0.3 to 1.2%; Cr: 0.30 to 1.00%; Mo: 0.20 to 0.80%; Cu: 0.20 to 0.60%; Ti: 0.01 to 0.05%; and B: 0.001 to 0.003%; the rest are Fe and inevitable impurities. The tensile strength of the armor plate reaches a grade of 2000 MPa, and the Brinell hardness thereof reaches a grade of 600.