The main advantage of steel wheels is that the manufacturing process is simple (casting process is generally used, such as aluminum alloy wheels are generally produced by low-pressure casting process), the cost is relatively low, and the ability to resist metal fatigue is very strong, which is what we commonly call cheap and cheap. solid. However, the disadvantages of steel wheels are also relatively prominent, namely, ugly appearance (it can be said that there is no appearance at all), heavy weight (same wheel steel material is much heavier than aluminum alloy material), large inertial resistance, and poor heat dissipation. And it is very easy to rust. Alloy wheels can just make up for such problems. Light weight, small inertial resistance, high manufacturing precision, small deformation during high-speed rotation, and small inertial resistance are conducive to improving the straight-line driving performance of the car and reducing tire rolling resistance. Reduced fuel consumption.
The thermal conductivity of the alloy material is about three times that of steel, and the heat dissipation is good. It can play a certain role in the heat attenuation of the vehicle's braking system, tires and braking system. The alloy wheels of original cars on the market are mainly made of aluminum alloy. Of course, many modified wheels will choose chrome, titanium and other elements as basic materials in order to meet certain special requirements and improve vision. However, compared with steel wheels, the price of alloy wheels is much more expensive, so in many low-end original cars, steel wheels will appear on low-end models, while alloy wheels are high-end models. Standard on the model.