Gost 1790-77. Wire of chromel, alumel, kopel and constantan alloys for thermoelectrodes of thermoelectric transducers. Technical conditions.
Supplier
The supplier Evek GmbH offers to buy thermocouple wire, the price is the most optimal in this segment of rolled products. We offer thermocouple wire from specialized warehouses of Evek GmbH with delivery in any city.
The percentage composition of alloys
| Alloy | Ni+Co | Fe | C | Si | Mn | S | P | Cu | Al | As | Pb | Mg | Zn | Sb | Bi | Impurities |
| Melchior MN19 | 18 - 20 | ≤0.5 | ≤0.05 | ≤0.15 | ≤0.3 | ≤0.01 | ≤0.01 | 78.5 - 82 | --- | ≤0.01 | ≤0.005 | ≤0.05 | ≤0.3 | ≤0.005 | ≤0.002 | ≤1.5 |
| Alumel NMzAK2-2-1 | 91.5 - 95.15 | ≤0.3 | ≤0.1 | 0.85 - 1.5 | 1.8 - 2.7 | ≤0.01 | ≤0.005 | 0.6 - 1.2 | 1.6 - 2.4 | ≤0.002 | ≤0.002 | ≤0.05 | ---- | ≤0.002 | ≤0.002 | ≤0.7 |
| Kopel MNMz43-0.5 | 42.5 - 44 | ≤0.15 | ≤0.1 | ≤0.1 | 0.1 - 1 | ≤0.01 | ≤0.002 | 54.4 - 57.4 | --- | ≤0.002 | ≤0.002 | ≤0.05 | --- | ≤0.002 | ≤0.002 | ≤0.6 |
| Cunial MNA13-3 | 12 - 15 | ≤1 | --- | --- | ≤0.5 | --- | --- | 80.1 - 85.7 | 2.3 - 3 | ≤0.002 | --- | --- | --- | --- | ≤1.9 | |
| Manganine MNMz3-12 | 2.5 - 3.5 | ≤0.5 | ≤0.05 | ≤0.1 | 11.5 - 13.5 | ≤0.02 | ≤0.005 | 82.1 - 86 | --- | ≤0.005 | ≤0.02 | ≤0.02 | --- | ≤0.002 | ≤0.002 | ≤0.9 |
Tests
The wire shall be subjected to tests - tensile, and hydrostatic or non-destructive electrical test. The material must meet the required mechanical properties - the tensile strength, yield strength, elongation.
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