GB/T1591 Q345B Steel grade is the most common used as high strength low alloy structural steel in industry area.
BBN Steel can offer steel coils,steel plates,angles,channels for Q345B materials.The equivalent steel grade with Q345B are EN 10025-2 S355JR,ASTM A572/A572 A572 Grade 50 and DIN 17100 St52-3.
Q345B Low Alloy Structural Steel Plate size we can offer:
Thickness:1.2-600mm
Width:1220-4200mm
Length:5000-18000mm
Chemical composition for Q345B Low Alloy Structural Steel (Heat Analysis Max%)
| Main chemical elements composition of Q345B |
| C |
Si |
Mn |
P |
S |
V |
Nb |
Ti |
| 0.20 |
0.55 |
1.00-1.60 |
0.040 |
0.040 |
0.02-0.15 |
0.015-0.060 |
0.02-0.20 |
Mechnical property for Q345B Low Alloy Structural Steel:
| Thickness (mm) |
| Q345B |
≤ 16 |
> 16 ≤ 35 |
> 35 ≤ 50 |
>50 |
| Yield strength (≥Mpa) |
345 |
325 |
295 |
275 |
| Tensile strength (Mpa) |
470-630 |
Extra Service:Pretreatment (Shot Blasting, Sand Blast, Painting and Galvanized), Cutting Parts, Sample Service, Third Party inspection, UT Test and Size inspection.
If you have any requirement in GB/T1591 Q345B steel plate,whether the new plate or stock list of material, please feel free to contact us by email of calling.
