GOST 1790-77. Wire made of chromel alloy T, alumel, copel and constantan for thermoelectrodes of thermoelectric converters. Technical conditions.
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Scope of application of GOST 1790−77
This standard regulates the general requirements for the production of chromel-T alloy wire, alumel, kopel and constantan. 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 |
| Status of document | Replaced |
| Original language | Russian |
| Title in English | Wire of chromel, alumel, copel and constantan for thermoelectrodes of thermoelectrical transducers. Specifications |
| Codes of ACS | B33 |
| Validity | 01/01/1998 year |
| Number of pages | 22 |
Wire dimensions
| Wire Ø, mm | Limiting deviation, mm |
|---|---|
| 0.20 | -0.03 |
| 0.30 | -0.04 |
| 0.50 | -0.05 |
| 0.70 | -0.05 |
| 1.20 | -0.06 |
| 1.50 | -0.08 |
| 3.20 | -0.10 |
| 5.0 | -0.12 |
Delivery, price
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