| |
|
|
Quality of Titanium
Titanium Grade 1-4 is pure Titanium, the other grades are alloys. Pure Titanium is used due to its high corrosion resistance, the alloys because of the extremely high strength to weight ratio.
- Grade 1. Pure Titanium, relatively low strength and high ductility.
- Grade 2. The pure titanium most used. The best combination of strength, ductility and weldability.
- Grade 3. High strength Titanium, used for Matrix-plates in shell and tube heat exchangers.
- Grade 5. The most manufactured titanium alloy. Exceedingly high strength. High heat resistance.
- Grade 7. Superior corrosion resistance in reducing and oxidizing environments.
- Grade 9. Very high strength and corrosion resistance..
- Grade 12. Better heat resistance than pure Titanium. Applications as for Grade 7 and Grade 11.
- Grade 23. Titanium-6Aluminum-4Vanadium ELI (Extra Low Interstitial) Alloy for surgical implant Applications.
CHEMICAL, PHYSICAL AND MECHANICAL PROPERTIES |
CHEMICAL COMPOSITION |
ASTM Grade |
(Max. Values) |
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 |
0,20 |
0,25 |
0,12 |
0,25 |
0.13 |
Pd, Palladium |
|
|
|
0,12-0,25 |
|
|
|
Al, Aluminum |
|
|
5,5-6,75 |
|
2,5-3,5 |
|
5,5-6.5 |
Mo, Molybdenum |
|
|
|
|
|
0,2-0,4 |
|
V, Vanadium |
|
|
3,5-4,5 |
|
2,0-3,0 |
|
3,5-4,5 |
Ni, Nickel |
|
|
|
|
|
0,6-0,9 |
|
Ti, Titanium |
Bal. |
Bal. |
Bal. |
Bal. |
Bal. |
Bal. |
Bal. |
MECHANICAL PROPERTIES |
|
|
|
|
|
Tensile strength, min (Mpa) |
240,00 |
345,00 |
895,00 |
345,00 |
620,00 |
483,00 |
828,00 |
Yield strength, 0,2% Offset, min (Mpa) |
170,00 |
275,00 |
825,00 |
275,00 |
483,00 |
345,00 |
759,00 |
Elongation (in 4D, min, %) |
24,00 |
20,00 |
10,00 |
20,00 |
15,00 |
18,00 |
10,00 |
Reduction of Area, min, % |
30,00 |
30,00 |
25,00 |
30,00 |
25,00 |
25,00 |
15,00 |
Hardness * Interpolated |
Rb70 |
Rb80 |
Rc36 |
Rb80 |
Rc28 |
Rc17* |
|
|
|
|
