What has the same expansion rate as steel?

Answer 1

nothing, like people: each material is different. steel... " talking about mild steel here" has an expansion rate of 0.06 - 0.07 times the lengh for every 100 kelvins this rule holds true up to 1173 kelvin, this is known as a terminal point as the steel starts to soften and alter its physical state thare are other materials avalable with very similar expansion rates bt as a general rule of thumb, each metalic molacule is specific to its (ER)