1.2343 4X5MØC


1.2343 is one of the Hot Work, Chromium type tool steels. It is relatively low in carbon content and has good toughness and deep hardens by air quench from heat treatment. Good combination of toughness, hardness and wear resistance in hot.




%C %Si %Mn %P %S Cr Mo V
0,36-0,42 0,90-1,20 0,30-0,50 0,030 0,030 4,80-5,50 1,10-1,40 0,25-0,50


Hot working:

Forging temperature range: 1200-850℃
Note: Heat to 1200 ℃. Do not forge below 850.
Heat treatment:

Soft annealing As annealed hardness(≤ HB30) Hardening Temper
760-780 235 1020-1050 SS0-650


Main application:

Pressure casting moulds for light metal, metal extrusior press tools
Shape of product:

Round, flat, step shape, ring, disc other shape depend on customer needs