EN24 EN24T EN24U |
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EN24 is a high quality, high tensile, alloy steel . Usually supplied readily machineable in ‘T’ condition, it combines high
tensile strength, shock resistance, good ductility and resistance to wear. EN24 is available from stock in round bar, flat bar
and plate.
TYPICAL ANALYSIS |
EN24 |
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C. |
Si. |
Mn |
Ni. |
Cr. |
Mo. |
0.40% |
0.30% |
0.60% |
1.50% |
1.20% |
0.25% |
Hardening:
Heat uniformly to 823/850C until heated through. Quench in oil.
Tempering:
Heat uniformly and thoroughly at the selected tempering temperature, up to 660C and hold at heat for two hours per inch of
total thickness. Tempering between 250-375C in not recommended as this can seriously reduce the steels impact value.
Stress Relieving:
Heat slowly to 650-670C, soak well before cooling the EN24 tool in a furnace or in air.
Mechanical Properties
Heat
Treatment |
Tensile
Strength
Rm N/mm² |
Yield
Stress
Re N/mm² |
a% on
5.665ÖSo |
Impact
Izod J |
Impact
KCV J |
Proof
Stress
rp0.2 |
Hardness
HB |
Size
mm |
T |
850/1000 |
654 |
13 |
40 |
35 |
635 |
248/302 |
>150≤250 |
T |
850/1000 |
680 |
13 |
54 |
50 |
665 |
248/302 |
>63≤250 |
U |
925/1075 |
755 |
12 |
47 |
54 |
740 |
269/331 |
>29≤100 |
V |
1000/1150 |
850 |
12 |
47 |
42 |
835 |
293/352 |
>13≤63 |
W |
1075/1225 |
940 |
11 |
40 |
35 |
925 |
311/375 |
>6≤29
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X |
1150/1300 |
1020 |
10 |
34 |
28 |
1005 |
345/401 |
>6≤29 |
Z |
1550 |
1235 |
5 |
10 |
9 |
1125 |
444 |
>6≤29 |
Available sections:
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