GOST 18903-73. Tungsten wire. Range.
TECHNICAL CHARACTERISTICS
| Standard designation: | GOST 18903-73 |
| Status of the standard: | valid |
| Name of the Russian Federation: | Tungsten wire. Range |
| Name of English: | Tungsten wire. Assortment |
| Date of effective date: | 01.01.1976 |
| Scope and conditions of application: | This standard applies to tungsten wire made by powder metallurgy, used in the manufacture of electronic devices and light sources |
| List of changes: | No. 1 of --1980-10-01 (reg. --1980-04-09) "Validity extended" No.2 dated --1987-01-01 (reg. --1986-07-23) "Validity extended |
Tests
The material shall be subjected to tests - tensile, and hydrostatic or non-destructive electrical test. Tungsten filament shall meet the required mechanical properties - tensile strength, yield strength, and relative elongation.
The supplier
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