Q345B steel is a low-alloy high-strength structural steel with good mechanical properties, low temperature performance, plasticity and good weldability. It is one of the most widely used steel grades in construction and engineering structures.
The chemical composition of Q345B steel includes a combination of materials such as carbon, silicon, manganese, phosphorus, sulfur, vanadium, niobium, aluminum, and titanium. These elements provide it with enhanced mechanical properties and excellent resistance to deformation under heavy loads.
The major advantage of Q345B steel over other steel grades is its excellent mechanical properties. It has a yield strength of 345MPa, which is much higher than that of the most commonly used A36 steel (250MPa). It also has a higher tensile strength of 470-630MPa, which makes it more durable and able to withstand significant stress and strain.
Another advantage of Q345B steel is its good plasticity. It is capable of absorbing a lot of energy when impacted or deformed, which makes it highly resistant to damage caused by external factors such as shock, vibration, and impacts. Moreover, it has good weldability, which makes it easy to work with and modify to fit specific project requirements.
In addition to its mechanical properties, Q345B steel is also known for its low carbon content, which makes it environmentally friendly and reduces carbon emissions. It is widely used in various industries such as construction, transportation, energy, and manufacturing.
Q345B steel is a versatile and reliable material that offers several advantages over other steel grades. Its excellent mechanical properties, good plasticity, and weldability make it an ideal choice for a wide range of applications in various industries.
Our steel products are used in world-renowned shipbuilding and machinery industries. Our premium galvanized steel coils are used in construction, automotive manufacturing and other areas where strength and resilience are required.
