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SAE 8620 AISI 8620 8620H
Technical Data
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
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 880-930°C and allowed to cool at room temperature. The test piece of AISI 8620 / SAE 8620 is then re treated to 820-840°C and quenched in oil.
Condition
Tensile
Strength
Rm N/mm²
Elongation
%
5.665ÖSo
Izod
ft.lb
min.
KCV
J
min.
Hardness
HB
Test Piece
Size
mm
BC
Blank Case Hardened
(typical results)
SAE8620 / AISI8620
850
11
15
35
-
19
Available sections