Tu 48-42-62-71. Tungsten wire
Are you interested in TU 48−42−62−71 «Tungsten wire «from the supplier company AvecGlob? Here you will find interesting information on this topic.
Application area
These technical conditions apply to tungsten wire, which is intended for the manufacture of sensitive elements of high-temperature thermocouples, used measuring systems of high-temperature technological processes.
The range of tungsten wire and limit deviations should meet the requirements specified in the table
| Product name | Nominal diameter, mm | Tolerance. Deviations, mm | Length, mm, not less than |
| Tungsten wire | from 1.50 to 1.90 every 0.10 | ± 0.07 | 500 |
| from 2.00 to 2.50 every 0.25 | ± 0.10 | 1000 | |
| 2.75 | ± 0.08 | 1000 |
The chemical composition of the wire should correspond to that indicated in the table
| Component name | Norm,% |
| Mass fraction of tungsten, not less than | 99,9146 |
| Mass fraction of impurities, not more than | |
| aluminum | 0.003 |
| iron | 0.010 |
| nickel | 0.005 |
| calcium | 0.010 |
| silicon | 0.005 |
| molybdenum | 0.040 |
| carbon | 0.008 |
| Mass fraction of gases. no more | 0,0045 |
Supplier — AvekGlob Company — offers at affordable prices from the manufacturer a tungsten wire intended for the manufacture of thermocouple elements that meets the requirements of TU 48−42−62−71. The supplier guarantees the timely delivery of products to any address specified by the consumer.
Requirements for the quality of the material
The presence of burrs on the surface of the wire, deforming tool impressions that do not lead them beyond the tolerances of the diameter, as well as the risks and oxide film, are not a sign of acceptance.
The wire should not have cracks and bundles.
Mechanical properties, wires should correspond to those indicated in the table
| Nominal diameter, mm | Tensile strength, MPa | Relative extension, %, not less than |
| 0.4… 10 | 3234 | 1.0 |