Microstructure and Properties of HB400 Grade High Strength Meta-bainite Steel Wear Resistant Plate

A new high strength HB400 grade meta bainite wear resistant plate was developed. The microstructure and mechanical properties were studied as hot rolled, low temperature tempering and hot rolled, normalizing, low temperature tempering, as well as hot rolled and different temperature tempering. The wear resistance of steel plate at different conditions was studied with a model ML 10 wear tester. Results show that the microstructure of test steel plate is bainite ferrite and retain austenite at two different conditions and it has good strength /toughness combination and wear resistance. The wear resistant plate has better toughness after low temperature tempering and higher tempering resistance. This steel plate with meta bainitic has features of simple production process and lower cost.