Convert Microinches per inch per degree Fahrenheit to Percent per degree Fahrenheit
Convert Microinches per inch per degree Fahrenheit (μin/(in·°F)) to Percent per degree Fahrenheit (%/°F) instantly and accurately.
Conversion Formula
%/°F = μin/(in·°F) × 1.000000000e-4
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.
About Percent per degree Fahrenheit
The %/°F equals 9/5 × 10⁻² /K ≈ 0.018 /K, the Fahrenheit percent-expansion unit used in US polymer and rubber industry specifications. PTFE: ≈0.0075 %/°F; HDPE: ≈0.0083 %/°F; silicone rubber: ≈0.056 %/°F. 1 %/°F = 9/5 × 10⁻² /K ≈1.8 %/K.
Quick Reference Table
| Microinches per inch per degree Fahrenheit (μin/(in·°F)) | Percent per degree Fahrenheit (%/°F) |
|---|---|
| 1 μin/(in·°F) | 1 × 10-4 %/°F |
| 2 μin/(in·°F) | 0.0002 %/°F |
| 5 μin/(in·°F) | 0.0005 %/°F |
| 10 μin/(in·°F) | 0.001 %/°F |
| 25 μin/(in·°F) | 0.0025 %/°F |
| 50 μin/(in·°F) | 0.005 %/°F |
| 100 μin/(in·°F) | 0.01 %/°F |