TU 11-77. Tungsten rods. Technical conditions.
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Scope of application TU 11−77
This standard regulates the general requirements for the production of tungsten rods. Finished products must meet mechanical requirements, including tensile strength, yield strength, elongation, etc. Chemical analysis, tensile tests and hardness tests must be carried out in accordance with relevant standards.
Bibliography
| Type of standard | Standards for products (services) |
| Date of implementation | 01/01/1978 year |
| Approved by | Interstate Council for Standardization, Metrology and Certification |
| Original language | Russian |
| Title in English | Manufacture of tungsten rods. Technical conditions |
Chemical composition of rods
| Bar grade | Tungsten + thorium oxide,%, not less than | Sum of impurities,%, not more than | The content of thorium oxide,% |
|---|---|---|---|
| VA | 99.95 | 0.05 | - |
| VRN | 99.90 | 0.10 | - |
| VT-7 | 99.95 | 0.05 | 0.7−1.0 |
| VT-10 | 99.95 | 0.05 | 1.0−1.5 |
| VT-15 | 99.95 | 0.05 | 1.5−2.0 |
| VT-30 | 99.94 | 0.06 | 2.5−3.5 |
| VT-50 | 99.94 | 0.06 | 4.5−5.5 |
Storage
In closed warehouses or under a canopy, where adequate protection against mechanical and other damages is provided.
Delivery, price
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