Tungsten, as a high performance material, has unique properties: highest melting point, low vapor pressure, low coefficient of thermal expansion, Tungsten bars or rods is often used for producing ion implantation parts. Tungsten electrode, electric light source parts and electric vacuum components. In high temperature furnace,tungsten rods or bars is used in producing heating elements and heating parts.
Surface Finish
Black - Surface is "as swaged" or "as drawn"; retaining a coating of processing lubricants and oxides.
Cleaned - Surface is chemically cleaned to remove all lubricants and oxides.
Ground - Surface is centerless ground to remove all coating and to achieve precise diameter control.
Black - Surface is "as swaged" or "as drawn"; retaining a coating of processing lubricants and oxides.
Cleaned - Surface is chemically cleaned to remove all lubricants and oxides.
Ground - Surface is centerless ground to remove all coating and to achieve precise diameter control.
Specification with size and diameter:
| Swaged Rods | Straightened rods after drawn | Surface Finish: | |
| Size: |
Diameter: 2.4-95mm Length: less than 3000mm |
Diameter: 0.8-3.2mm Length: Less than 3000mm |
Black surface Finished surface Ground surface |
Chemical Composition:
| Designation | Tungsten Content | Impurity Elements Content | |
| Total | Each | ||
| WAL1, WAL2 | ≥99.95% | ≤0.05% | ≤0.01% |
| W1 | ≥99.95% | ≤0.05% | ≤0.01% |
| W2 | ≥99.92% | ≤0.08% | ≤0.01% |
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Note: Potassium is not counted in impurities content. Chemical Composition: |
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Special sizes are available, please contact sales for inquiries.