Best rated wheels wholesale provider: What are the similarities between forged and alloy wheels? Although alloy and forged rims differ even in appearance, they have a number of similarities. To the main similarities can be attributed — material, shape and configuration, range. Previously, wheel rims were made of steel, but then there were many alloy materials based on aluminum and magnesium, which quickly took the leading position. For the production of cast and forged rims, aluminum alloys with the addition of the same magnesium are most often used. Copper and manganese can be used as additional additives. Aluminum itself is …