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What is the hardness of Q235 Outer Tie Rod?

Nov 12, 2025

Hey there! As a supplier of Q235 Outer Tie Rods, I often get asked about the hardness of these components. So, let's dive right into it and break down what the hardness of Q235 Outer Tie Rod really means.

First off, Q235 is a type of carbon structural steel. It's widely used in various industries because of its good combination of strength, ductility, and weldability. When it comes to the outer tie rod, which is a crucial part in a vehicle's steering system, the hardness plays a vital role in its performance and durability.

The hardness of Q235 steel is typically measured using the Brinell hardness test or the Rockwell hardness test. These tests give us an idea of how resistant the material is to indentation or penetration. For Q235, the Brinell hardness usually ranges from around 110 - 140 HB. This level of hardness makes it strong enough to withstand the forces and stresses it encounters in normal use, but also malleable enough to be shaped and machined during the manufacturing process.

In the context of an outer tie rod, this hardness is essential. The outer tie rod connects the steering rack to the steering knuckle, and it has to transfer the steering force from the driver to the wheels. If it's too soft, it can bend or deform under the load, which can lead to steering problems, uneven tire wear, and even safety issues. On the other hand, if it's too hard, it can become brittle and more likely to crack or break.

Our company offers different types of Q235 Outer Tie Rods, such as the Q235 Outer Tie Rod with Zinc Plated. The zinc plating not only provides corrosion resistance but also adds a bit of extra protection to the surface of the tie rod. This is especially important for vehicles that are exposed to harsh environments, like saltwater or road salt in the winter.

Another option we have is the Q235 Outer Tie Rod with Zinc Plated 2~3μm. The specific thickness of the zinc plating in this case is carefully controlled to ensure the best balance between corrosion protection and the overall performance of the tie rod.

When we manufacture these tie rods, we pay close attention to the heat treatment process. Heat treatment can significantly affect the hardness and other mechanical properties of the Q235 steel. By carefully controlling the heating and cooling rates, we can achieve the desired hardness and ensure that each tie rod meets our high - quality standards.

During the manufacturing process, we also conduct strict quality control checks. We use advanced testing equipment to measure the hardness of each tie rod. This way, we can guarantee that every product that leaves our factory has the right hardness and is ready to perform in real - world applications.

But why is it so important to have the right hardness in an outer tie rod? Well, as I mentioned earlier, the outer tie rod is a critical part of the steering system. It has to be able to handle the constant forces and vibrations that come with driving. A tie rod with the correct hardness will maintain its shape and integrity over time, providing reliable steering performance.

Q235 Outer Tie Rod With Zinc Plated 2~3μmQ235 Outer Tie Rod With Zinc Plated

For example, when you turn the steering wheel, the outer tie rod moves the steering knuckle, which in turn changes the direction of the wheels. If the tie rod is too soft, it might start to bend slightly with each turn, causing the steering to become less precise. This can make it difficult to control the vehicle, especially at high speeds or in emergency situations.

On the other hand, if the tie rod is too hard and brittle, it could break under a sudden impact or a large load. This would be extremely dangerous as it could lead to a complete loss of steering control.

In addition to the steering function, the hardness of the outer tie rod also affects its wear resistance. The tie rod is constantly moving and rubbing against other components in the steering system. A tie rod with the right hardness will resist wear better, which means it will last longer and require less frequent replacement.

We understand that our customers rely on the quality of our Q235 Outer Tie Rods. That's why we invest a lot of time and resources in research and development to improve our manufacturing processes and ensure the best possible hardness for our products.

If you're in the market for high - quality Q235 Outer Tie Rods, we'd love to hear from you. Whether you're a car manufacturer, a repair shop, or an individual looking for a replacement part, we have the expertise and the products to meet your needs. Don't hesitate to reach out and start a conversation about your requirements. We're here to provide you with the best solutions and the highest - quality Q235 Outer Tie Rods on the market.

References

  • "Materials Science and Engineering: An Introduction" by William D. Callister Jr. and David G. Rethwisch
  • "Automotive Steering Systems: Fundamentals, Mechatronics, Designs" by Hans - Jürgen Warnecke and Michael Jost
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Linda Jiang
Linda Jiang
I am a supply chain manager at无锡卡伯斯动力传动科技有限公司, where I oversee the procurement and logistics of raw materials and finished products. My goal is to ensure efficient production processes and timely delivery of our Agra brand components to global markets.