Q550CFC performance of high-strength plates and their industrial applications
Q550CFC is a high-strength plate with low weld crack susceptibility, Q550CFC steel plate can be produced by Wugang up to 8---150mm thick, and the delivery condition is thermomechanically controlled rolling (TMCP), TMCP+tempering or quenching + tempering (quenching and tempering). (The specific delivery status is agreed by both parties and indicated in the contract)
| Chemical composition |
| Tabulation: Depu Steel Date: 2024-01-18 |
| C |
Si |
Mn |
P |
S |
Ni |
Cr |
Mo |
V |
| ≤ 0.09 |
≤0.5 |
2 |
≤0.02 |
≤0.010 |
≤1.8 |
0.8 |
≤0.7 |
≤0.1 |
Note:
(1): In order to improve the properties of steel, other trace alloying elements other than the above table can be added, and the data comes from the network and is for reference only.
(2): The allowable deviation of the chemical composition of the finished steel plate shall comply with the provisions of
GB/T222
5. Q550CFC mechanical properties: Material: Q550CFC Yield strength: 530-550 Tensile strength: 670-830
Elongation after break: 16%.
Impact temperature: 0°C
Impact energy: 60J
Q550CFC stands for low weld crack susceptibility to high-strength plates: CF is the abbreviation of crack free. The suffix C represents the quality grade of the steel plate. Q550CFC steel plate impact can reach 0°C. Q550D steel plate is an ordinary high-strength steel plate, and the difference between it and Q550CFC steel plate is that the impact is different. Q550D steel plate impact can reach -20 degrees. Application of Q550CFC high-strength plate: mainly used for the production of pressure steel pipes for hydropower stations, construction machinery, railway vehicles, bridges, high-rise and long-span buildings with high weldability requirements.
