GB/T 700 Q275 is a grade of carbon structural steel plate under China standard. It is classified as medium-strength carbon steel, featuring good plasticity and machinability, and medium weldability . It is mainly used for structural components and mechanical parts that require a certain level of strength.

* The strength decreases with increasing thickness. Charpy V-notch impact testing is not mandatory.

Q275 Carbon Steel Plate offers higher strength and lower cost compared to low-alloy steel plates. It is primarily used in applications where strength requirements exceed those of Q235. Common applications include:

1. Machinery manufacturing: Producing components such as gears, shafts, bolts, and nuts that withstand moderate loads.

2. Engineering structures: Used for support members in construction, structural components of tower cranes, and frames of small engineering machinery.

3. Other fields: Manufacturing welded or stamped parts requiring higher strength, or serving as shell materials for certain equipment.