Concast CSF 50 is a low carbon, cold drawn steel wire fiber designed to provide concrete with temperature and shrinkage crack control, enhanced flexural reinforcement, improved shear strength and increase the crack resistance of concrete. It is a reliable, cost efficient concrete reinforcement that is designed to be easy to mix, place and finish. Concast CSF 50 Crimped Steel Fiber complies with ASTM C1116 and ASTM C1018, Standard Specification for Fiber Reinforced Concrete and Shotcrete and ASTM A820, Type I, Standard Specification for Steel Fibers for Fiber Reinforced Concrete.