Convert Microinches per inch per degree Fahrenheit to Per degree Fahrenheit
Convert Microinches per inch per degree Fahrenheit (μin/(in·°F)) to Per degree Fahrenheit (1/°F) instantly and accurately.
Conversion Formula
1/°F = μin/(in·°F) × 1.000000000e-6
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 Per degree Fahrenheit
The per degree Fahrenheit (1/°F = °F⁻¹) equals exactly 9/5 /K = 1.8 /K and is the imperial counterpart of the SI unit. Found in ASME boiler and pressure vessel codes, ASHRAE engineering tables, and UL material data sheets. Iron: ≈6.7 × 10⁻⁶ /°F; ordinary glass: ≈4.9 × 10⁻⁶ /°F. 1 /°F = 9/5 /K (= 1/°R).
Quick Reference Table
| Microinches per inch per degree Fahrenheit (μin/(in·°F)) | Per degree Fahrenheit (1/°F) |
|---|---|
| 1 μin/(in·°F) | 1 × 10-6 1/°F |
| 2 μin/(in·°F) | 2 × 10-6 1/°F |
| 5 μin/(in·°F) | 5 × 10-6 1/°F |
| 10 μin/(in·°F) | 1 × 10-5 1/°F |
| 25 μin/(in·°F) | 2.5 × 10-5 1/°F |
| 50 μin/(in·°F) | 5 × 10-5 1/°F |
| 100 μin/(in·°F) | 1 × 10-4 1/°F |