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 HOME > 메카백과 > 메카편람 |
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 제목 |
Titanium Grade 21 |
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| 분류 |
금속재료 > 특수금속 |
작성일 |
2006.11.13 |
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| 작성자 |
admin   |
다운로드 |
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| 키워드 |
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| Titanium Grade 21 |
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Chemical composition (weight %) (Maximum values unless range is shown) |
| O |
N |
C |
H |
Fe |
A1 |
Nb |
Si |
Mo |
Others |
Residuals |
| 0.15 |
0.05 |
0.05 |
0.015 |
0.4 |
2.3 |
2.2-3.2 |
3.5 |
14.0-16.0 |
| 0.4 |
Beta - 21S is a mestastable beta alloy that offers high specific strength and good formability, and has been designed for improved oxidation resistance, elevated temperature strength, creep resistance and thermal stability. It is most useful for application above 300 캜. Because it can be economically rolled to foil and is compatible with most fibres, it is also well suited for metal matrix composites.
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Mechanical properties at room temperature |
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Minimum values |
Typical values |
| Yield Strength |
965 MPa |
1100 MPa |
| Ultimate Strength |
1030 MPa |
1150 MPa |
| Elongation in 50 mm, A5 |
6% |
10% |
| Reduction in Area |
% |
% |
| Hardness |
. |
360-420 HV |
| Modulus of elasticity |
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72-85 GPa |
| Charpy V-Notch Impact |
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103-110 J | |
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