There is not much difference between aluminum and stainless steel materials on the surface, but they are actually quite different. If you want to choose a more suitable metal material, it depends on the environment in which it is used. Aluminum materials are generally not as strong as steel materials, however, aluminum is very light, accounting for only 33% of the overall weight. This is the main motivation why aluminum is used in aircraft production.

We distinguish the difference between the two from the following aspects:

1. Consumption. Treated steel consists of iron, chromium, nickel, manganese and copper. Adding chromium as an operating agent will hinder consumption. Also, given its impermeable nature, consumption is reduced. Aluminum has a high resistance to oxidation and erosion, mainly because of its passivation layer. When aluminum is oxidized, its surface will turn white and occasionally pit. Under certain special acidic or alkaline conditions, aluminum may be rapidly consumed and produce a catalytic effect.

2. Functionality. Aluminum is simpler to cut and structure than stainless steel. Because stainless steel is protective against wear and scratches, it is not easy to use in some machinery.

3. Welding. Stainless steel materials are generally easy to weld, while aluminum is cumbersome.

4. Temperature properties. Stainless steel materials can be used at much higher temperatures than aluminum, which is exceptionally delicate at temperatures around 400 degrees.