Aluminum alloy and stainless steel, which is more durable?

Features

Aluminum alloy: low density, but relatively high strength, close to or more than high-quality steel.

Stainless steel: good weldability, strong corrosion resistance. The vast majority of stainless steel products require good corrosion resistance.

Hardness

Stainless steel density is low, but the strength is high, close to steel, good plasticity. Stainless steel is a nickel-chromium alloy with higher hardness than aluminum alloy.

High temperature resistance

Stainless steel can withstand high temperature, melting point in 1200--1500 degrees,

Aluminum alloy can not withstand too high temperature, melting point in 500--800 degrees.

Surface treatment:

Stainless steel surface treatment includes surface bright treatment, surface whitening treatment, and surface coloring treatment.

 Aluminum alloy treatment includes electrophoresis, spraying, anodizing, etc.