Detailed explanation of Q345qDNH steel plate:
Q345qDNH steel plate belongs to the category of bridge steel plate. The internal initial "Q" of Q345qDNH steel plate grade indicates the yield of steel plate, "345" indicates the yield strength value of steel plate, "q" indicates bridge steel plate, "D" indicates low temperature, and "NH" indicates that steel plate is weathering steel plate. Q345qDNH steel plate has good low-temperature resistance and weather resistance, making it one of the better types of bridge steel plates.
Q345qDNH steel plate execution standard:
Q345qDNH steel plate belongs to the category of bridge steel plate and follows the standard GB/T714.
Q345qDNH steel plate chemical composition:
| C | Si | Mn | Nb | V | Ti | Cr | Ni | Cu | Mo | N | ALs |
| no greater than | |||||||||||
| ≤0.11 | 0.15-0.5 | 1.1-1.5 | 0.01-0.1 | 0.01-0.1 | 0.006-0.03 | 0.4-0.7 | 0.3-0.4 | 0.25-0.5 | 0.1 | 0.008 | 0.015-0.05 |
The chemical composition of Q345qDNH steel plate is not fixed, so the final quality assurance certificate of the steel plate should prevail!
Q345qDNH steel plate mechanical properties:
Yield strength: 345MPa;
Tensile strength: 490MPa;
Elongation after fracture: 20%;
Impact temperature: -20 ℃;
Impact absorption energy: 120J.
The mechanical properties of Q345qDNH steel plate are ultimately based on the MTC!
Q345qDNH steel plate delivery status:
Q345qDNH steel plate can be delivered in a normalized or hot-rolled heat treatment process. If there are other technical requirements for the steel plate, such as flaw detection or Z-direction, the supply and demand parties can negotiate in advance and choose private customization.
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