Specialty Materials
> Tantalum
> Titanium
> Tungsten
> Molybdenum
Tantalum
Tantalum Grades Typical
Tantalum 3N5 ~ Minimum Purity 99.95 %
Tantalum 3N8 ~ Minimum Purity 99.98 %
Tantalum 4N ~ Minimum Purity 99.99 %
Forms of Delivery
Tantalum Wires / Tantalum Tubes / Tantalum Bars / Tantalum
Plates / Tantalum Foils
Typical Tantalum, Ta 3N5
~ 5N Purities PPM Analysis (US manufactured Grades)
Grades |
Fe |
Ni |
Cr |
Cu |
Nb |
W |
Mo |
Na |
Li |
K |
U |
Th |
Others |
Total |
5N
|
1 |
1 |
1 |
1 |
10 |
8 |
5 |
0.4 |
0.1 |
0.4 |
0.001 |
0.001 |
0.1 |
≤
2 8 |
|
4.5N |
1 |
1 |
1 |
1 |
50 |
25 |
25 |
0.4 |
0.1 |
0.4 |
0.005 |
0.005 |
1 |
≤
106 |
4N |
1 |
1 |
1 |
1 |
100 |
80 |
50 |
1 |
1 |
1 |
0.005 |
0.005 |
5 |
≤
242 |
|
3.5N |
5 |
5 |
5 |
5 |
500 |
150 |
100 |
5 |
5 |
5 |
0.005 |
0.005 |
10 |
≤
795 |
Notes:
-
Impurity values shown are maximum present in each grade
Metallic impurities measured by GDMS
Gaseous impurities measured by LECO
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Titanium
Titanium Grades Typical
> Grades 1, 2, 3 and 4
Forms of Delivery
> Titanium Wires / Titanium Tubes / Titanium Rods
/ Titanium Plates / Titanium Foils
Typical Titanium Composition
Specifiations / Mechanical Properties
|
Grade
Ti |
Per
Cent Ti |
Typical
Impurity (max) wt.% |
|
C |
Fe |
H |
N |
O |
|
Grade 1 |
≥ 99.0 |
0.10 |
0. 50 |
0.015 |
0.05 |
0.40 |
|
Grade 2 |
≥ 99.2 |
0.10 |
0. 30 |
0.015 |
0.05 |
0.35 |
|
Grade 3 |
≥ 99.3 |
0.10 |
0. 30 |
0.015 |
0.03 |
0.25 |
|
Grade 4 |
≥ 99.5 |
0.10 |
0. 20 |
0.015 |
0.03 |
0.18 |
Grades |
Typical
Mechanical Properties |
|
Density |
Condition |
Tensile
Strength |
0.2%
Yield Strength |
Elongation |
Reduction |
Hardness |
|
Grade 1 |
0.163 Ib/in3 |
1,300°F anneal |
80 ksi |
70 ksi |
15 % |
25 % |
100 HRB |
|
Grade 2 |
0.163 Ib/in3 |
1,300°F anneal |
65 ksi |
55 ksi |
18 % |
30 % |
90 HRB |
|
Grade 3 |
0.163 Ib/in3 |
1,300°F anneal |
50 ksi |
40 ksi |
20 % |
30 % |
80 HRB |
|
Grade 4 |
0.163 Ib/in3 |
1,300°F anneal |
35 ksi |
25 ksi |
24 % |
30 % |
70 HRB |
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Tungsten
Typical Purity
> Minimum 99.95%
Forms of Delivery
> Tungsten Wires / Tungsten Rods / Tungsten Plates
Typical Applications
> Lamp Filaments, Heating Filaments / Boats, Electrodes,
Electron Tube Components -
Tungsten Crucibles, Tungsten Tubes, Tungsten
Funnels, Tungsten Pots, Tungsten
Sheets and Tungsten Boxes
Typical Tungsten Wire
Specifications
| Wire
Diameter (µms) |
Wire
Weight per 200mm in length (mgs) |
10 ~ 18 ums |
≥ 0.3 ~ 0.98 mgs |
|
18 ~ 40 ums |
≥ 0.98 ~ 4.85 mgs |
40 ~ 80ums |
≥ 4.85 ~ 19.39 mgs |
|
80 ~ 100 ums |
≥ 19.39 ~ 30.30 mgs |
100 ~ 300 ums |
≥ 30.30 ~ 272.71 mgs |
|
300 ~ 400 ums |
≥ 272.71 ~ 484.80 mgs
|
Typical Tungsten Rod
Specifications
| Rod
Diameter (mm) |
Diameter
Tolerances
Black Rods % |
Diameter
Tolerances
Ground Rods mm
|
0.4 ~ 1.0 mm |
+/- 1.5 % |
+/- 0.02 mm |
|
1.0 ~ 2.5 mm |
+/- 2.0 % |
+/- 0.03 mm |
2.5 ~ 5.8 mm |
+/- 2.0 % |
+/- 0.05 mm |
|
5.8 ~ 12.0 mm |
+/- 2.0 % |
+/- 0.08 mm |
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Molybdenum
Typical Purity
> Minimum 99.90% - 99.95%
Forms of Delivery
> Molybdenum Wires, Molybdenum Bars, Molybdenum Rods,
Molybdenum Plates & Sheets
Typical Applications
> Electron Vacuum Devices, High Temperature Structures,
High Temperature Filaments &
Heaters, (Other forms – Crucibles,
Mandrels, Rods, Tubes, Boats, Pots, Electrodes,
Sheets and Boxes)
Typical Molybdenum
Chemical Composition Specifications
| Molybdenum
Form |
Molybdenum
Purity |
Composition
Impurities |
Alloy
Elements |
Molybdenum
Wires |
≥ 99.93% |
Other Elements
≤ 0.07% |
Non |
| Molybdenum
Rods |
≥ 99.90~99.95% |
Other Elements
≤ 0.07%~0.05% |
Non |
Molybdenum
Plates |
≥ 99.90~99.95% |
Other Elements
≤ 0.07%~0.05% |
Non |
| Molybdenum
Alloys
|
≥ 99.93% |
Other Elements
≤ 0.07% |
0.20~0.60% |
Typical Molybdenum Impurities
Specifications
| Molybdenum
Purity Type |
Fe |
Ni |
Al |
Si |
Mg |
C |
N |
O |
| Molybdenum 99.95% |
0.01% |
0.005% |
0.002% |
0.01% |
0.005% |
0.01% |
0.003% |
0.008% |
| Molybdenum 99.93% |
0.01% |
0.005% |
0.002% |
0.01% |
0.005% |
0.01% |
0.003% |
0.02% |
Other Molybdenum Alloys
> TZM Molybdenum Alloys – 99% Mo, 0.5% Ti and
0.08% Zr
> Molybdenum / Rhenium Alloys – 50:50%
> Molybdenum / Tungsten Alloys – 70:30%
> Molybdenum / Lanthanum Alloys
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