Chemical Composition | ASTM Grade | ||||||
1 | 2 | 5 | 7 | 9 | 12 | 23 | |
N, Nitrogen | 0.03 | 0.03 | 0.05 | 0.03 | 0.02 | 0.03 | 0.03 |
---|---|---|---|---|---|---|---|
C, Carbon | 0.1 | 0.1 | 0.1 | 0.1 | 0.05 | 0.08 | 0.08 |
H, Hydrogen | 0.015 | 0.015 | 0.0125 | 0.015 | 0.013 | 0.015 | 0.0125 |
Fe, Iron | 0.2 | 0.3 | 0.4 | 0.3 | 0.25 | 0.3 | 0.25 |
O, Oxygen | 0.18 | 0.25 | 0.2 | 0.25 | 0.12 | 0.25 | 0.13 |
Pd, Palladium | - | - | - | 0.12-0.25 | - | - | - |
Al, Aluminium | - | - | 5.5-6.75 | - | 2.5-3.5 | - | 5.5-6.5 |
Mo, Molybdenum | - | - | - | - | - | 0.2-0.4 | - |
V, Vanadium | - | - | 3.5-4.5 | - | 2-3 | - | 3.5-4.5 |
Ni, Nickel | - | - | - | - | - | 0.6-0.9 | - |
Ti, Titanium | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. |
Mechanical Properties | |||||||
Tensile strength (Mpa) | 240 | 345 | 895 | 345 | 620 | 483 | 828 |
Yield strength (Mpa) | 170 | 275 | 825 | 275 | 483 | 345 | 759 |
Elongation (Min %) | 24 | 20 | 10 | 20 | 15 | 18 | 10 |
Reduction Area (Min %) | 30 | 30 | 25 | 30 | 25 | 25 | 15 |
Hardness | Rb70 | Rb80 | Rc36 | Rb80 | Rc28 | Rc17* | - |