With the rapid expansion of the titanium sector, titanium is finding its way into more and more civilian applications. Automotive wheel bolts have also grown popular; now, we will analyze what benefits titanium alloy wheel bolts have over standard steel and aluminum alloy wheel bolts. Is it time to replace your car's hub bolts as titanium?
First, we must learn about titanium. "Titanium" as the basis element of titanium alloy is a miraculous metal, with a specific gravity of just 4.51, the highest specific strength of any metal, corrosion resistance, and a high melting point.Therefore, "titanium alloy" with its extreme light weight, high strength, strong corrosion resistance, high heat resistance and other characteristics are used in aerospace, military precision parts， known as the "future material".
Through the characteristics of titanium, we know the following points:
Light weight;
high strength,
Corrosion resistance and high heat resistance;
Widely used in aerospace, military...
And what does light mean for a car? According to the trial results, the overall weight of a car falls by 10%, while fuel efficiency rises by 6%-8%. The fuel consumption of 100 kilometers may be lowered by 0.3-0.6 liters for every 100 kg reduction in vehicle assembly mass, and the carbon dioxide emissions can be reduced by roughly 5 grams/km. "Vehicle lightweight" has become a global trend in car development. It is very normal that titanium alloys with light weight and strong strength are applied in the automobile industry. What? Aluminum alloy 7075 hub bolt weight is lighter, that is not more suitable than titanium alloy? A lot of people would argue the same thing, which brings us to the other properties of titanium alloys: high strength and high heat resistance.
When it comes to lightweight bolts, let's first talk about the aluminum alloy bolts, since they are lighter than the original ones, is it better than the original car's performance? In fact, it is not the same thing. Although the quality of aluminum alloy bolts is much lighter than the original steel, its physical characteristics lead to low hardness, no impact resistance, and poor thermal stability and easy thermal deformation. I do not know if you have touched the temperature of the hub when parking, especially after intense driving, the temperature is quite high, I've been burned by a hub before . The wheel hub of the car is fixed by the bolts, and its use environment is also very bad.The car's wheel hub is held together by bolts, and its usage environment is similarly poor. The extreme warmth and torque created by the car's acceleration can cause the bolts to deform. Iron bolts are still used in many motor racing events for their stability at high temperatures and severe settings.
Although aluminum alloy wheel bolts are lighter, their strength and heat resistance are relatively low when compared to steel. Titanium alloy is a combination of these features, lighter, high strength, heat resistance, and corrosion resistance. Of course, titanium alloy has drawbacks. At the moment, hub bolts of Grade 5 are commonly utilized. Grade 5 titanium alloy has a certain brittleness, it is debatable whether it is suited for producing hub bolts. Non-grade 5 titanium alloy materials have been created for the production of hub bolts, particularly since the "Made in China 2025" plan was launched in 2015, and research and investigation in this field has never ceased.
Overall, the application of titanium alloy in automobile wheel hub bolts will become more and more mature, therefore, it is necessary to use titanium alloy bolts to replace the traditional steel bolts
