Bulletproof armor properties of high hardness, strong strength, good toughness and small specific gravity, it is specially suit Specification of B4CBulletproof armorNo.Flexural strengthMPaHardness (Rockwell)HRAModulus of ElasticityGPaCompressive strengthMPaHardnessKgf/mm2140193.345727013010241593.745927503210344194.653527303150Average41993.948427273123Classic size ( length * wide * thickness)** ...