440C
440C
General
ALLOY 440C IS A HIGH-CARBON MARTENSITIC STAINLESS STEEL OFFERING THE HIGHEST HARDNESS AND WEAR RESISTANCE OF ANY STAINLESS STEEL WHEN HEAT-TREATED. IT MAINTAINS MODERATE CORROSION RESISTANCE WITH SUFFICIENT CHROMIUM TO RETAIN STAINLESS PROPERTIES. IDEAL FOR APPLICATIONS REQUIRING HIGH STRENGTH AND DURABILITY.
Uses
BEARINGS, VALVE PARTS, BUSHINGS, STRUCTURAL AIRCRAFT PARTS.
Heat Treatment & Condition
CONDITION A
Chemical Analysis
C
·
0.95/1.20
Cr
·
16.00/18.00
Mn
·
1.00 MAX
P
·
0.04 MAX
S
·
0.03 MAX
Si
·
1.00 MAX
Mo
·
0.40/0.80
| C | Cr | Mn | P | S | Si | Mo |
|---|---|---|---|---|---|---|
| 0.95/1.20 | 16.00/18.00 | 1.00 MAX | 0.04 MAX | 0.03 MAX | 1.00 MAX | 0.40/0.80 |
Typical Mechanical Properties (EXAMPLE ONLY)
TEN. STRENTH
758 - 2030 MPa
PROOF STRESS
448 - 1900 MPa
ELONG.
4 - 14%
HARDNESS (HOT FIN.)
269 HB MAX
HARDNESS (COLD FIN.)
285 HB MAX
| TEN. STRENTH | PROOF STRESS | ELONG. | HARDNESS (HOT FIN.) | HARDNESS (COLD FIN.) |
|---|---|---|---|---|
| 758 - 2030 MPa | 448 - 1900 MPa | 4 - 14% | 269 HB MAX | 285 HB MAX |