GBT 1591 Q345C HSLA structural steel plates have good comprehensive mechanical properties, low temperature performance and good plasticity and weldability. Q345C steel plates are used as raw materials for medium and low pressure vessel, oil tank, vehicle, crane, mining machinery, power station, bridge and other structures, mechanical parts, building structures, general metal structures, etc.
GBT 1591 Q345C HSLA structural steel plates chemical composition and mechanical property:
| Grade | C % | Si % | Mn | P % | S % | |
| Q345C | ≤ 0.20 | ≤ 0.55 | 1.00-1.60 | ≤ 0.035 | ≤0.035 | |
| Grade | Thickness | Yield Strength (Mpa) | Tensile Strength | Elongation | Impact Energy | |
| (mm) | (MPa) | (%) | Min | |||
| Q345C | ≤ 16 | 345 | 470-630 | 22 | 0 | 34J |
| >16-35 | 325 | 470-630 | 22 | 0 | 34J | |
| >35 | 295 | 470-630 | 22 | 0 | 34J | |
| The min impact energy is longitudinal energy | ||||||
GBT 1591 Q345C HSLA structural steel plates are added with V、Ti、Nb microalloying elements. Those elements can refine grain, improve the toughness and comprehensive mechanical properties of Q345C steel plate.
Just like you, 70% customers choose long-term cooperation with BBN steel not only for our good product and service quality, good reputation in the international market, but also for our experienced one-stop raw material supply and further steel processing!
