DIN 1.2714 mold steel was made at the base of DIN 1.2344 mould steel. So it has the advantages of 1.2344 steel and has better properties. It has good toughness and malleability. And it also is added the chromium to improve the toughness and fatigue resistance of the 2714 steel material. The Cr content of it is quite high, so it has great hardenability. And air cooling in the time of quenching will get the martensite structure. But its carbon content is on the medium level to make sure to get good hardness after the quenching and tempering. Meanwhile, 1.2714 steel will get good thermostability and high impact toughness. It will get secondary hardening in the high-temperature tempering, then its wearing resistance, corrosion resistance and thermal fatigue resistance will get improve.