In general, the difference between stainless steel and aluminum alloy is as follows:

1. In terms of price, stainless steel is expensive, and aluminum alloy is cheap;

2. The hardness of stainless steel is higher than that of aluminum alloy;

3. In terms of surface treatment, aluminum alloys are more abundant, including

electrophoresis, spraying, anodizing, etc., and stainless steel is less;

4. The aluminum alloy with poor surface treatment will oxidize after being used

for a long time, and there will be spots; stainless steel is relatively better, but the

composition is not up to the standard or the maintenance is careless and it will still rust.