Metal fiber can be used as reinforcement fiber for composite materials, improving breaking behavior upon impact and electrical conductivity. Traditional carbon or glass fiber reinforcement fibers have very limited elongation possibilities, which results in a brittle and explosive breaking behavior. Metal fibers act perfectly complementary to this, and can absorb much more energy before breaking. Processing is no different from any other reinforcement fiber for composite material. It is even possible to combine metal fibers with other fibers into a 'hybrid' composite structure, which combines all the benefits of carbon, glass and steel.