The casting properties of mould steel 1.2344

     Since the mould steel 1.2344 is a kind of multi element composite medium carbon alloy steel, it's contains more alloy elements Mo、V、Cr, make the solidification temperature of liquid alloy decreased, resulting in the crystallization temperature range increases, the casting performance is poorer. The following two tables are the mobility and linear shrinkage of 1.2344 steel. Tests showed, 1.2344 steel pouring temperature control in 1 530 ~ 1 630 ℃ is appropriate, its linear shrinkage be similar to ordinary carbon steel. By the electroslag remelting process can decrease the solidification temperature interval, improve the inner quality of 1.2344 mould steel, improve the toughness of casting mould.

Mobility
Casting type Pouring temperature/°C Overheating temperature/°C Helix length/mm
Sand mold 1530 70 260
Sand mold 1588 128 350
Sand mold 1670 210 475
Sand mold 1700 240 760

Linear shrinkage(%)
Projeck Parameter
Free shrinkage 1.68
Blocked shrinkage 1.29

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