Mould materials include a wide range, from the general carbon structural steel, alloy steel, carbon tool steel, alloy tool steel, high-speed tool steel, stainless steel, the maraging steel to gold, high temperature alloy, hard alloy, hard together of non-ferrous metal and so on all can choose, mainly belongs to die steel alloy tool steel. With the development of mould industry in China, the number of mould material, quality, variety and performance aspects put forward the new requirements, higher mold material market has also been rapid development.
 
The needs of the mould material trial shot behind the mould industry in China, mainly displays in several aspects:
 
(1) sales channel is not smooth.
 
(2) the black round bar, flat steel, concentrate, after pre hardening of materials and products, standard parts. About 80% is black round bar steel market in our country, the user to change change also take their own forging after material, material utilization rate is low, production cycle is long, can't meet the needs of the die and mould industry.
 
(3) the general quality of the die steel, high quality die steel, steel in a considerable number of demanding need after vacuum refining and electroslag solution, some enterprises abroad regulations section is larger than 150 mm of mould steel, full of electroslag remelting, to ensure that the steel of high purity, high density, high tropism, but our country by electroslag remelting steel share is very small.