Convert Per degree Fahrenheit to Microns per metre per degree Celsius
Convert Per degree Fahrenheit (1/°F) to Microns per metre per degree Celsius (μm/(m·°C)) instantly and accurately.
Conversion Formula
μm/(m·°C) = 1/°F × 1800000
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).
About Microns per metre per degree Celsius
The micrometre per metre per degree Celsius (μm/(m·°C)) equals exactly 10⁻⁶ /K, since temperature intervals 1 °C = 1 K (exact). It is the standard CTE notation in European engineering datasheets, ISO material standards, and many textbooks. Numerically identical to ppm/K. Aluminium: 23.1 μm/(m·°C); steel: ≈12 μm/(m·°C). 1 μm/(m·°C) = 1 ppm/K = 10⁻⁶ /K.
Quick Reference Table
| Per degree Fahrenheit (1/°F) | Microns per metre per degree Celsius (μm/(m·°C)) |
|---|---|
| 1 1/°F | 1800000 μm/(m·°C) |
| 2 1/°F | 3600000 μm/(m·°C) |
| 5 1/°F | 9000000 μm/(m·°C) |
| 10 1/°F | 18000000 μm/(m·°C) |
| 25 1/°F | 45000000 μm/(m·°C) |
| 50 1/°F | 90000000 μm/(m·°C) |
| 100 1/°F | 180000000 μm/(m·°C) |