Standard: GB/T 1591
Main grades: Q345A, q345b, Q345C, Q345D, Q345E, Q390A, Q390B, Q390C, Q390D, Q420A, Q420B, Q420C, Q420D, Q460A
Category: high strength low alloy structural steel
Thickness: 1.2-600mm
Width: 1220-4200mm
Length: 5000-18000mm
Notes: coil thickness ≤ 25mm
Grade |
C |
Si |
Mn |
P |
S |
Nb |
V |
Q345A |
≤0.20 |
≤0.50 |
≤1.70 |
0.035 |
0.035 |
0.07 |
0.15 |
Ti |
Cr |
Ni |
Cu |
N |
Mo |
B |
|
0.20 |
0.30 |
0.50 |
0.30 |
0.012 |
0.10 |
- |
Grade |
Thickness mm |
Yield strength |
Tensile strength |
|
Q345A |
≤16 |
≥345 |
≤40 |
470-630 |
16-40 |
≥335 |
40-63 |
470-630 |
|
40-63 |
≥325 |
63-80 |
470-630 |
|
63-80 |
≥315 |
80-100 |
470-630 |
|
80-100 |
≥305 |
100-150 |
450-600 |
|
100-150 |
≥285 |
150-250 |
450-600 |
|
150-200 |
≥275 |
250-400 |
- |
|
200-250 |
≥265 |
- |
- |
|
250-400 |
- |
- |
- |
Katalor enterprises have advanced steel processing equipment, include automatic arc-submerging welder, Dc manual arc welding machine, radial drill, CNC floor-type sharp boring machine, CNC gantry milling, H-beam assembling machine, and Q345A H-beam welding production line. We can supply prime quality Q345A plates and Q345A steel beams for you, please send us inquiry if you need.