GB/T 700 Q235C Steel Plate is a carbon structural steel plate with excellent overall performance. Its impact toughness at 0°C is a key characteristic that distinguishes it from lower-grade Q235 steels. It is suitable for various steel structure projects that require certain levels of strength and low-temperature toughness. This steel is widely used and considered a classic material in machinery manufacturing and the construction industry.

* A carbon content of ≤0.17% ensures the weldability and toughness of the steel, preventing increased brittleness due to excessive carbon levels.

* The content of harmful impurities sulfur (S) and phosphorus (P) is strictly controlled to ≤0.040% in order to reduce the hot shortness and cold brittleness of the steel.

* As the thickness of the steel increases, the yield strength gradually decreases, and it must pass the impact test at 0°C.

Due to the excellent comprehensive mechanical properties (strength, plasticity, toughness) and weldability of Q235C steel plate, it is widely used in:

1. Building structures: steel frames, beams, and columns for factories and high-rise buildings.

2. Bridge structures: auxiliary components and non-primary load-bearing structures.

3. Vehicle manufacturing: automobile frames, chassis components, etc.

4. Construction machinery: structural parts for cranes, excavators, etc.

5. General metal components: such as bolts, connecting rods, brackets, flanges, etc.

Difference In Quality Grades

* The core differences between different quality grades of Q235 steel plates lie in the impact test requirements and the content of harmful elements (Phosphorus and Sulfur).

International Standard Equivalent Materials:

* Since the requirements for chemical composition, mechanical properties, and corrosion resistance mechanisms vary slightly across different standards, "equivalence" typically refers to similarities in intended use and performance rather than exact identity.