Convert Microinches per inch per degree Fahrenheit to Millimetres per metre per degree Fahrenheit
Convert Microinches per inch per degree Fahrenheit (μin/(in·°F)) to Millimetres per metre per degree Fahrenheit (mm/(m·°F)) instantly and accurately.
Conversion Formula
mm/(m·°F) = μin/(in·°F) × 0.001
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 Millimetres per metre per degree Fahrenheit
The mm/(m·°F) equals 9/5 × 10⁻³ /K ≈1.8 × 10⁻³ /K, combining metric displacement with Fahrenheit temperature. It appears in US-origin pipeline and structural reports where dimensions are given in metres but temperatures in °F. Steel: ≈0.00667 mm/(m·°F); aluminium: ≈0.01283 mm/(m·°F). 1 mm/(m·°F) = 9/5 × 10⁻³ /K.
Quick Reference Table
| Microinches per inch per degree Fahrenheit (μin/(in·°F)) | Millimetres per metre per degree Fahrenheit (mm/(m·°F)) |
|---|---|
| 1 μin/(in·°F) | 0.001 mm/(m·°F) |
| 2 μin/(in·°F) | 0.002 mm/(m·°F) |
| 5 μin/(in·°F) | 0.005 mm/(m·°F) |
| 10 μin/(in·°F) | 0.01 mm/(m·°F) |
| 25 μin/(in·°F) | 0.025 mm/(m·°F) |
| 50 μin/(in·°F) | 0.05 mm/(m·°F) |
| 100 μin/(in·°F) | 0.1 mm/(m·°F) |