1.2344 | X 40 CrMoV 51 |
1.2344 is one of the hot work, chromium type tool steels. It also contains molybdenum and vanadium as strengthening agents. The chromium content assists this alloy to resist softening if used at higher temperatures.
Composition:
%C | %Si | %Mn | %P | %S | %Co | %Cr | %Mo | %Ni | %V | %W | Others |
0,37-0,43 | 0,90-1,20 | 0,30-0,50 | 0,030 | 0,030 | – | 4,80-5,50 | 1,20-1,50 | – | 0,90-1,10 | – | – |
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Hot working:
Forging temperature range: 1100-850℃
Note: Heat to 1200 ℃. Do not forge below 850.
Heat treatment:
Soft annealing | As annealed hardness(≤ HB30) | Hardening | Temper |
750-780 | 235 | 1020-1060 | SS0-650 |
Main application:
Oil- or air-cooled extrusion and piercing mandrels of extruding presses
Shape of product:
Round, flat, step shape, ring, disc, shaft, other shape depend on customer needs