Q235 Q345 Steel Angle Iron

Q235 is a common structural steel that can be used for residential or commercial construction. It has an ultimate tensile strength of 235,000 PSI and yield strength of 100,000 PSI. The Q345 steel has the same ultimate tensile strength as the Q235, but has a slightly higher yield strength at 110,000 PSI.

From a cost perspective, it's worth noting that the difference in price between these two grades of steel is nominal - typically less than $100 per ton. You'll find this material in many places around construction sites including the steel structure, scaffolding, edge protection barriers, and construction fence, etc.

Q345 is a steel alloy with a higher carbon content than Q235. This results in a higher tensile strength, making it ideal for applications where strength is required. It also has a lower melting point than other steels, making it suitable for welding and hot-forming applications. However, its properties also make it more susceptible to corrosion. As a result, it is typically only used in application where corrosion resistance is not a critical concern.

So when you choose materials, you need to consider the budget and the application scenario, of course, in addition to choosing one or the other, you can also choose a mixture of two materials to get the most cost-effective product.

The legs of the angle bar can be equal or unequal in terms of length. If the legs are not identical in measurement, the item is called an "unequal angle bar". Bridges, communication towers, and warehouses are the most common structures that utilize angle bars. These formations are in need of both vertical and horizontal reinforcement. As angle bars are weather resistant, they manage to keep their shape despite the wear and tear.

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