Niobium Grade Chemical Composition
Element | R04200 | R04210 | R04251 | R04261 |
Carbon | 0.01 | 0.01 | 0.01 | 0.01 |
Nitrogen | 0.01 | 0.01 | 0.01 | 0.01 |
Oxygen | 0.015 | 0.025 | 0.015 | 0.025 |
Hydrogen | 0.0015 | 0.0015 | 0.0015 | 0.0015 |
Zirconium | 0.02 | 0.02 | 0.8 to 1.2 | 0.8 to 1.2 |
Tantalum | 0.1 | 0.3 | 0.1 | 0.5 |
Iron | 0.005 | 0.01 | 0.005 | 0.01 |
Silicon | 0.005 | 0.005 | 0.005 | 0.005 |
Tungsten | 0.03 | 0.05 | 0.03 | 0.05 |
Nickel | 0.005 | 0.005 | 0.005 | 0.005 |
Molybdenum | 0.01 | 0.02 | 0.01 | 0.05 |
Hafnium | 0.02 | 0.02 | 0.02 | 0.02 |
Titanium | 0.02 | 0.03 | 0.02 | 0.03 |