Admat supplies tantalum strip and foil products in a wide range of thicknesses and widths. We can offer flat rolled material cut to specific lengths or we can supply coiled sheet or strip shipped on cores. Although our products are typically produced to meet ASTM specifications, other specifications are available upon request.
Admat offers both powder metallurgy and typical electron beam processed tantalum strip. The powder metallurgy grade tantalum is perfect for deep drawing and stamping applications. Its provides a fine grain structure and is isotropic. Therefore parts are less likely to be pitted or have rough surfaces. When ordering this material specify “Deep Draw Quality” or order to ASTM B708 R05400.
For high temperature applications such as furnace parts, Admat has grain stabilized tantalum strip and foil. This product is engineered to significantly increase the product life by slowing grain growth at high temperature.
| Foils (thickness .002″ to <.005″) |
|
|
|
| Thickness tolerance: |
+/-.0003″ |
| Maximum width: |
6″ |
| width tolerance: |
.02″ |
| Tantalum Strip (thickness .005″ to <.040) |
|
|
|
| Thickness tolerance: |
+/-.0005″ |
| (or 5% of thickness, whichever is greater) |
| Maximum width: |
12″ |
| Width tolerance for <6″ wide: |
+/-.005″ |
|
+/-.015″ |
| Sheet (thickness .041″ – .090″ ) |
|
|
|
| Thickness tolerance: |
+/-5% |
| Maximum width: |
25″ |
| Width tolerance: |
+/-.025″ |
| Sheared tolerances |
+/- .125″ |
| Plate (Thickness >.090″) |
|
| Max width: |
30″ |
| Width Capabilities |
|
| Up to .004″ |
6″ wide |
| .005″ to .015″ |
10″ wide |
| .016″ to .10″ |
25″ wide |
| greater than .10″ |
39″ wide |
| Available Alloys |
|
|
| Tantalum |
| Tantalum 2.5% Tungsten |
| Tantalum 7.5% Tungsten |
| Tantalum 10% Tungsten |
| Tantalum 40% Niobium |
| Tantalum micro-alloys |
| (grain stabilized for high temperature furnaces) |
| Typical Tantalum Chemistry |
|
|
|
|
Electron Beam |
Powder Met |
|
(EB) R05200 |
(PM) R05400 |
|
wt% |
wt% |
|
|
|
| C |
<0.004 |
<0.004 |
| O |
<0.020 |
<0.020 |
| N |
<0.003 |
<0.003 |
| H |
<0.001 |
<0.001 |
| TI |
<0.001 |
<0.001 |
| W |
<0.005 |
<0.005 |
| Nb |
<0.030 |
<0.030 |
| Fe |
<0.004 |
<0.004 |
| Mo |
<0.002 |
<0.002 |
| SI |
<0.002 |
<0.002 |
| NI |
<0.002 |
<0.002 |
| TA |
balance |
balance |
| Foils (thickness .002″ to <.005″) |
|
|
|
| Thickness tolerance: |
+/-.0003″ |
| Maximum width: |
6″ |
| width tolerance: |
.02″ |
| Sheet (thickness .005″ to <.040) |
|
|
|
| Thickness tolerance: |
+/-.0005″ |
| (or 5% of thickness, whichever is greater) |
| Maximum width: |
12″ |
| Width tolerance for <6″ wide: |
+/-.005″ |
|
+/-.015″ |
| Sheet (thickness .041″ – .090″ ) |
|
|
|
| Thickness tolerance: |
+/-5% |
| Maximum width: |
25″ |
| Width tolerance: |
+/-.025″ |
| Sheared tolerances |
+/- .125″ |
| Plate (Thickness >.090″) |
|
| Max width: |
30″ |
