Products Description
GB/T700 Q235D shall be done low temperature impacting test under minus 20 centigrade.Normally As-rolled and Control-rolled is ok for rolling Q235D,Q235D steel plate,Q235D steel sheet,normalized is suggested when the steel plates are heavy thickness.
Mechanical properties for Q235D Carbon steel
| Thickness (mm) | ||||||
| Q235D | ≤ 16 | > 16 ≤ 40 | > 40 ≤ 60 | > 60 ≤ 100 | > 100 ≤ 150 | > 150 |
| Yield strength (≥Mpa) | 235 | 225 | 215 | 215 | 195 | 185 |
| Tensile strength (Mpa) | 370-500 | |||||
Chemical composition for Q235D Carbon steel (Heat Analysis Max%)
| Main chemical elements composition of Q235D | ||||
| C | Si | Mn | P | S |
| 0.17 | 0.35 | 1.40 | 0.035 | 0.035 |
Products Application
Q235D steel plate is a low-carbon, high-quality structural steel plate widely used in construction, infrastructure, and industrial applications due to its excellent mechanical properties, weldability, and formability.
Construction and Civil Engineering
Q235D steel plate is commonly used for building frameworks, columns, beams, and supporting structures. With a yield strength of ≥245 MPa and tensile strength of 375–505 MPa, it provides reliable load-bearing capacity while allowing for easy cutting, bending, and welding during construction.
Bridges and Infrastructure Projects
The steel plate is suitable for bridge girders, deck plates, and reinforcements, where durability and resistance to structural stress are crucial. Its good elongation (20–26%) ensures flexibility under heavy loads and dynamic conditions.
Industrial Machinery and Equipment
Q235D is also used for machine bases, structural frames, and heavy equipment components, benefiting from its toughness and stability under operational stress, vibration, and repeated loading.
Shipbuilding and Marine Applications
Its excellent weldability and corrosion resistance make it suitable for hull construction, decks, and offshore platforms, particularly in environments exposed to humidity or occasional saltwater contact.
Transportation and Automotive Applications
The steel plate is applied in vehicle chassis, railway car frames, and structural panels, providing safe, durable, and cost-effective solutions for transportation equipment manufacturing.
