装甲防弹钢板BTP500质量特性分析

Analysis on Quality Characteristics of Armor Plate BTP500

选取685、Armox 500T产品与装甲防弹用钢板BTP500进行对比分析,结果表明包钢生产的装甲防弹用钢板BTP500显微组织为回火马氏体,原始奥氏体晶粒细小,平均晶粒尺寸为10.5μm,且晶粒大小均匀。BTP500钢板的硬度(HBW)平均值在291~296之间,比685钢板平均值高出30左右。各项力学性能指标完全达到Armox 500T防护钢板的水平,-40℃低温冲击吸收功平均值为51.6 J,高于Armox 500T的冲击吸收功。BTP500钢板在厚度较薄的情况下仍具有良好的抗弹性能,为装甲车辆轻量化提供了理想的防护材料。

In this paper,the products of 685 and Armox 500T,armor plate BTP500 are selected to compare and analyze.The results showed that the microstructure of armor plate BTP500 produced by Baotou Steel was tempered martensite,original austenite grain was fine,average grain size was 10.5μm and grain size was uniform.The average hardness of BTP500 steel plate(HBW)is 291~296,which is about 30 higher than that of 685 steel plate.The mechanical performance indexes could fully reach the levels of Armox 500T protective plate,average low-temperature impact absorbing energy at-40℃is 51.6 J,which is higher than that of Armox 500T.The BTP500 steel plate is still with good bullet proof property in the case that it is thinner,which provides the ideal protective material for lightweight of armored vehicles.