Convert Millimetres per metre per kelvin to Microinches per inch per degree Fahrenheit
Convert Millimetres per metre per kelvin (mm/(m·K)) to Microinches per inch per degree Fahrenheit (μin/(in·°F)) instantly and accurately.
Conversion Formula
μin/(in·°F) = mm/(m·K) × 555.5555556
About Millimetres per metre per kelvin
The mm/(m·K) equals exactly 10⁻³ /K = 1000 ppm/K and is used in structural and civil engineering for bridge girder and pipeline thermal-expansion calculations. Steel at 0.012 mm/(m·K) expands 12 mm per 100 m track per 10 K rise. Polymers: 0.07-0.20 mm/(m·K). 1 mm/(m·K) = 10⁻³ /K = 1000 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
| Millimetres per metre per kelvin (mm/(m·K)) | Microinches per inch per degree Fahrenheit (μin/(in·°F)) |
|---|---|
| 1 mm/(m·K) | 555.556 μin/(in·°F) |
| 2 mm/(m·K) | 1111.11 μin/(in·°F) |
| 5 mm/(m·K) | 2777.78 μin/(in·°F) |
| 10 mm/(m·K) | 5555.56 μin/(in·°F) |
| 25 mm/(m·K) | 13888.9 μin/(in·°F) |
| 50 mm/(m·K) | 27777.8 μin/(in·°F) |
| 100 mm/(m·K) | 55555.6 μin/(in·°F) |