SAE 8620 AISI 8620 8620H
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8620 is a low alloy case hardening steel which is supplied to American standards SAE 8620 and AISI 8620. 8620 can be carburised, which will achieve a tough core with a hard wear resistant case. 8620 provides a combination of toughness and wear resistance. 8620 is supplied in either the as rolled or annealed condition for subsequent case hardening.
TYPICAL ANALYSIS |
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C. |
Si. |
Mn |
Ni. |
Cr. |
Mo. |
0.20% |
0.30% |
0.80% |
0.60% |
0.50% |
0.20% |
Mechanical properties are not stated in AISI 8620 or SAE 8620 as standard. The mechanical properties information for AISI 8620 / SAE 8620 is provided below as a guida. A test piece of 19mm diameter AISI 8620 / SAE 8620 is blank carburised for at least one hour at a temperature of between 880-930C and allowed to cool at room temperature. The test piece of AISI 8620 / SAE 8620 is then re treated to 820-840C and quenched in oil.
Condition
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Tensile
Strength
Rm N/mm² |
Elongation
%
5.665ÖSo
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Izod
ft.lb
min.
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KCV
J
min.
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Hardness
HB
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Test Piece
Size
mm |
BC
Blank Case Hardened
(typical results)
SAE8620 / AISI8620 |
850 |
11 |
15 |
35 |
- |
19 |
Available sections
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