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Aluminum is higher expansion - about 23 ppm/C, whereas steels range from 12ppm/C for alloy steel and carbon steel, 17 ppm/C for stainless 300 austenitic series, and 11 ppm/C for stainless 400 martensitic series

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Q: How does thermal expansion of steel compare to aluminum?
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thermal expansion depends on Temperature and material of steel


Compare stainless steel on aluminum vs. galvanized steel on aluminum?

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