440A grade stainless steels Chemical Composition
Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
|
440A |
min. max. |
0.65 0.75 |
- 1.00 |
- 1.00 |
- 0.040 |
- 0.030 |
16.00 18.00 |
- 0.75 |
- |
- |
Tempering Temperature (°C) |
Tensile Strength (MPa) |
Yield Strength 0.2% Proof (MPa) |
Elongation (% in 50mm) |
Hardness Rockwell (HR C) |
Impact Charpy V (J) |
Annealed* |
758 |
448 |
14 |
269HB max# |
- |
204 |
2030 |
1900 |
4 |
59 |
9 |
260 |
1960 |
1830 |
4 |
57 |
9 |
316 |
1860 |
1740 |
4 |
56 |
9 |
371 |
1790 |
1660 |
4 |
56 |
9 |