EN S355J2 steel is common high strength steel that is mainly used for construction work. EN S355J2 steel is non-alloy structural steel with EN 10025-2 specification. There are various steel products manufactured using EN S355J2 steel and S355J2 steel plate is one of the popular product used in several industries and applications.
What is EN S355J2 steel equivalent GB standard material? The answer is Q345D. Let us check information as below.
Chemical composition of EN S355J2 steel equivalent GB standard material Q345D:
| Grade | C | Si | Mn | P | S | Cu | N | Nb | V | Ti | Cr | Ni | Mo | B | Als |
| S355J2 | 0.24 | 0.60 | 1.70 | 0.035 | 0.035 | 0.60 | 0.014 | - | - | - | - | - | - | - | - |
| Q345D | 0.18 | 0.50 | 1.70 | 0.030 | 0.025 | 0.30 | 0.010 | 0.07 | 0.15 | 0.20 | 0.30 | 0.50 | 0.10 | - | 0.015 |
Mechanical properties of EN S355J2 steel equivalent GB standard material Q345D:
| Grade | Yield strength ReH/(N/mm2) (t≤16mm) min | Tensile strength Rm/(N/mm2) (3mm≤t≤16mm) | Elongation A/%(3mm≤t≤40mm) min | Charpy V test | |
| Temperature/℃ | Impact energy (Longitudinal)/J min | ||||
| S355J2 | 355 | 450-680 | 22 | -20 | 27 |
| Q345D | 345 | 470-630 | 21 | -20 | 27 |
EN S355J2 steel equivalent GB standard material Q345D is a micro alloyed structural steel suitable for e.g. mechanical engineering applications. EN S355J2 steel equivalent GB standard material Q345D is recommended for structural application in freight cars, transmission towers, dump trucks, cranes, trailers, bull dozers, excavators, forestry machines, railway wagons, highway bridges, building structures, oil and gas platforms, offshore structures, etc.
