YILI METAL

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2024

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11

Q235A vs Q235B: What’s the Difference?

In the steel industry, Q235A vs Q235B are two common carbon structural steels. Although they may be similar in appearance, there are some significant differences in chemical composition and performance.

In the steel industry, Q235A vs Q235B are two common carbon structural steels. Although they may be similar in appearance, there are some significant differences in chemical composition and performance. Understanding these differences is critical to the proper selection and application of these materials. In this article, we’ll dive into the differences between Q235A vs Q235B to help you better understand their features and uses.

Chemical Composition of Q235A vs Q235B:

Q235A and Q235B are two common low carbon steels. Their main differences are in their sulfur content and mechanical properties.

First of all, Q235A has a higher sulfur content, usually Sulfur (S): ≤0.050, while Q235B has a lower sulfur content, Sulfur (S): 0.035. Differences in sulfur content can cause changes in the material’s mechanical properties.

Secondly, the main difference between Q235A and Q235B is the impact toughness, and the impact toughness of B is better than A. In addition, the yield point and elastic modulus of Q235B are also relatively high.

Application of Q235A vs Q235B:

In practical applications, the uses of Q235A and Q235B are also different.

Q235A is mainly used to manufacture structural parts that do not need to withstand particularly high strength, such as steel bars, section steel, steel plates, etc.

Q235B is mainly used for structural parts that need to withstand higher strength, such as bridges, ships, vehicles, machinery manufacturing, and other fields.

 

To sum up, the main difference between Q235A vs Q235B is the sulfur content and mechanical properties, and their uses in practical applications are also different. When choosing which steel to use, comprehensive considerations need to be made based on the specific application scenario and required mechanical properties. If you want to know more, please contact us directly!

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