Boron carbide is: 44% lighter than titanium; 4.5x harder than rha steel; this unique combination led to the rapid adoption of boron carbide for high-end armor systems — allowing them to be lighter and more effective. applications for boron carbide plates have included aircraft armor and elite body armor. 953 boron carbide armor plates products are offered for sale by suppliers on alibaba, of which other police & military supplies accounts for 49%, bullet proof vest accounts for 21%, and ceramics accounts for 9%. Alibaba offers 693 boron carbide body armor products. about 58% of these are other police & military supplies, 14% are bullet proof vest, and 5% are ceramics. a wide variety of boron carbide body armor options are available to you, there are 693 boron carbide body armor suppliers, mainly located in asia. Alibaba offers 1,014 armor boron carbide plate products. about 1% of these are tool parts, 1% are moulds. a wide variety of armor boron carbide plate options are available to you, such as power tool parts, hand tool parts.