Why Do New Car Wheels Rust?

1 Answers
AvaRose
07/29/25 1:56pm
It is normal for the steel rims inside new car tires to rust, as it is only surface rust. Since the rims are made of cast iron, it generally does not affect their normal use. Many car models use aluminum alloy to make the wheel hubs. The advantage of aluminum alloy is that it is sturdy and durable, but the downside is that it is afraid of acid. Aluminum is easily oxidized when exposed to acid, and once placed in a strong acid environment, aluminum alloy wheel hubs can indeed be corroded. Below are the reasons: Wheel Hub Quality Issues: Many car manufacturers have improved their processes to reduce the harm of acidic substances to aluminum alloy wheel hubs. It should be said that the vast majority of car wheel hubs are now basically resistant to acid. However, there are still a few models whose wheel hubs are prone to corrosion. Air Oxidation: When the protective varnish on the wheel hub surface is damaged, the aluminum alloy material is exposed to the air and gets oxidized, leading to corrosion. Therefore, everyone should pay attention to safety while driving.
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