The differences are not so great, but they are different in their respective fields, and even in the same fields. The products they produce are very different. For example, if you want to make a strong handrail, consider making a stainless steel handrail.
The composition and mechanical properties are different. Weight and strength differ. Basically, see be you are used where, in general, if you use a place: 1, do not bear very big weight, and the environment is better. Use aluminum extrusion. 2. Bear large weight, humid environment, etc. and use stainless steel. For example, a door window, bicycle and so on, aluminum alloy is better.
The aluminum extrusions door window is better;
Reason: aluminum extrusion has low density, high strength, over quality steel, good plasticity, and can be processed into various profiles, which has excellent electrical, thermal and corrosion resistance. Aluminum alloy processing: the deformation of aluminum alloy can withstand pressure processing;
There are many kinds of aluminum alloys, and good aluminum alloy strength can be compared with some stainless steel. Of course, there is also good steel, aluminum alloy is not better than.
Aluminum alloy is generally a hard alloy with small deformation and lightweight. Stainless steel has better ductility, good elasticity, deformation, heavyweight and common deformation failure.
Price aspect stainless steel is expensive, aluminum alloy is cheap;
Stainless steel has higher hardness than aluminum alloy;
The surface treatment of aluminum alloy is relatively rich, including electrophoresis, spraying, anodic oxidation, stainless steel is less;
The aluminum alloy with poor surface treatment will be oxidized after a long time. Stainless steel is a little better, but the ingredients don’t meet the standard.