8620
8620
General
8620 IS A LOW ALLOY CASE HARDENING STEEL THAT CONTAINS NICKEL, CHROMIUM, AND MOLYBDENUM. WHEN CARBURISED, IT DEVELOPS A HARD OUTER CASE WHILE MAINTAINING A STRONG, TOUGH CORE. THIS MAKES IT IDEAL FOR APPLICATIONS REQUIRING BOTH WEAR RESISTANCE AND TOUGHNESS.
Uses
GEARS, SHAFTS, ARBORS, BEARINGS, PINIONS, KING PINS, SLEEVES, RATCHETS, ETC.
Heat Treatment & Condition
AS ROLLED
Chemical Analysis
C
·
0.18/0.23
Si
·
0.15/0.35
Mn
·
0.70/0.90
P
·
0.035 MAX
S
·
0.040 MAX
Cr
·
0.40/0.60
Mo
·
0.15/0.25
Ni
·
0.40/0.70
| C | Si | Mn | P | S | Cr | Mo | Ni |
|---|---|---|---|---|---|---|---|
| 0.18/0.23 | 0.15/0.35 | 0.70/0.90 | 0.035 MAX | 0.040 MAX | 0.40/0.60 | 0.15/0.25 | 0.40/0.70 |
Typical Mechanical Properties (EXAMPLE ONLY)
TEN. STRENGTH
898 MPa
YIELD STRENGHT
533 MPa
ELONG.
22.5%
HARDNESS
262 HB
| TEN. STRENGTH | YIELD STRENGHT | ELONG. | HARDNESS |
|---|---|---|---|
| 898 MPa | 533 MPa | 22.5% | 262 HB |