Original
By certification 
Chemical Composition
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C |
Si |
Mn |
P≤ |
S≤ |
Cr |
Mo |
V |
0.36 |
0.90 |
0.30 |
0.030 |
0.030 |
4.80 |
1.10 |
0.25 |
0.42 |
1.20 |
0.50 |
5.80 |
1.40 |
0.50 |
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Steel Properties
Deep hardening response. It can be air hardened to full working hardness in section sizes up to 150mm . Good combination of toughness, hardness and wear resistance in hot. Resistance to softening and to cracking.Tools canbe water cooled. Following NADCA standard.
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Applications
Tools with a broad range of working hardness up to tool working temp.500 degree. Tools for hot forging of light metals. Pressure die casting tools,dies,mandrels,punchers, knives, and moulds.
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Heat Treatment
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Soft Annealing(℃) |
Cooling |
Hardness(HB) |
Hardening( ℃ ) |
In |
Hardness(HRC) |
800-840 |
Furnace |
Max.229 |
1010-1040 |
In air,oil,thermal |
50-56 HRC |
Tempering (℃) |
100 |
200 |
300 |
400 |
450 |
500 |
550 |
600 |
650 |
700 |
HRC |
53 |
52 |
52 |
52 |
52 |
54 |
52 |
48 |
38 |
30 |
N/mm2 |
1845 |
1790 |
1790 |
1790 |
1790 |
1910 |
1790 |
1570 |
1200 |
970 |
