Ultrasonic testing couplant NKZh
It is designed for providing acoustic contact during ultrasonic non-destructive testing of rails, railroad switches and welded joints by removable flaw detection tools at negative air temperature.
It provides an excellent acoustic contact and possesses an extremely low pour point (–60°C). Completely replaces ethyl alcohol.
| Product name | Ultrasonic testing couplant NKZh |
|---|---|
| Crystallization onset temperature, °С, max | -60 |
| Closed cup flash point, °С |
45 |
| Ignition point, °С | 23 |
|
Self-ignition point, °С |
458 |
| Densit at a temperature of +20°С, kg/m3, max | 780 |
| Coefficient of sliding friction on rails after applying the ultrasonic testing couplant | 0,18 |
| Difference between conwentional sensitivity values as per SO-3R calibration block, detrmined while applying the ultrasonic testing coupling and ethyl alcohol at an atmospheric temperature -15°С max, dB | 2 |
| Corrosion resistance of metals and alloys to the ultrasonic testing couplant exposure (steel - 10, brass - L63, aluminum alloy - AMg5) | Withstands |
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