B4C Ceramic Plate

B4C Ceramic Plate is an extremely hard and lightweight bulletproof plate made of boron carbide (B4C). It is the third hardest material and is typically composed of composite materials such as PE and ceramics. As a high-end bulletproof surface, it can shatter incoming bullets and absorb high-speed impact forces. It is mainly used for protecting against high-velocity firearms and is one of the indispensable protective equipment in the fields of social public security, armor, military supplies, and special forces.

Minimum density, lightest weight for the same level of protection. The density of B₄C is 2.48 - 2.52 g/cm³, which is the smallest among ballistic ceramics.

NIJ IV SA level: The B4C plate is 25 - 30% lighter than SiC and more than 40% lighter than alumina. Wearing for a long time, the individual's load pressure is the lowest, which is the biggest core advantage of B4C.

Extremely high hardness, higher than SiC and alumina.

Excellent volume control. The plate is thinner under the same level of protection, not abrupt, and the wearing outline is relatively small.

Disadvantages of B4C Ceramic Plate

Poor fracture toughness, high brittleness, lower than SiC.

When falling from a waist height onto a hard surface, the outer shell may look intact, but internal microcracks that are invisible to the naked eye have already occurred, reducing the bulletproof performance. It can only be directly scrapped and cannot be repaired. Transportation, handling, and use must be very careful.

High raw material and manufacturing costs. The cost of the hot pressing sintering process is higher than that of SiC and alumina, and the product price is higher.

Sensitive to usage storage environment. When paired with UHMWPE back plates, long-term temperatures above 60°C (sun exposure in the trunk) will accelerate the aging of the PE back plate, reducing the overall bulletproof lifespan; damage to the encapsulated shell and water vapor intrusion will accelerate failure.

Winners has professional technology, advanced production equipment, and strict quality control measures, maintaining the stability of the quality and performance of boron carbide bulletproof plates, producing the required grades, sizes, and shapes for our customers, and being able to withstand the shooting of pistols and rifles and multiple fourth-level attacks.