Convert Percent per kelvin to Microinches per inch per degree Fahrenheit
Convert Percent per kelvin (%/K) to Microinches per inch per degree Fahrenheit (μin/(in·°F)) instantly and accurately.
Conversion Formula
μin/(in·°F) = %/K × 5555.555556
About Percent per kelvin
The %/K equals exactly 10⁻² /K = 10 000 ppm/K and is used for high-CTE materials such as polymers, foams, and rubber. PTFE: ≈0.0135 %/K; HDPE: ≈0.015 %/K; natural rubber: ≈0.06 %/K; silicone rubber: ≈0.10 %/K. 1 %/K = 10⁻² /K = 10 mm/(m·K) = 10 000 ppm/K.
About Microinches per inch per degree Fahrenheit
The microinch per inch per degree Fahrenheit (μin/(in·°F)) equals exactly 9/5 × 10⁻⁶ /K = 1 ppm/°F. It is the native US CTE unit in ASTM E228 and ASTM E831 standards; most US material datasheets list CTE values in this unit. Steel: ≈6.7 μin/(in·°F); aluminium: ≈12.8 μin/(in·°F); titanium: ≈4.9 μin/(in·°F). 1 μin/(in·°F) = 1 ppm/°F.
Quick Reference Table
| Percent per kelvin (%/K) | Microinches per inch per degree Fahrenheit (μin/(in·°F)) |
|---|---|
| 1 %/K | 5555.56 μin/(in·°F) |
| 2 %/K | 11111.1 μin/(in·°F) |
| 5 %/K | 27777.8 μin/(in·°F) |
| 10 %/K | 55555.6 μin/(in·°F) |
| 25 %/K | 138889 μin/(in·°F) |
| 50 %/K | 277778 μin/(in·°F) |
| 100 %/K | 555556 μin/(in·°F) |