As a professional GB/T 1591 q345b steel plates manufacturer in China, Katalor Industry can supply GB/T 1591 Q345B steel plates, GB/T 1591 Q345B coils, Q345B sheets and Q345B steel beams. We can provide Q345B steel products with chemical component analysis, tensile test, bend test, and impact test to guarantee Q345B steel quality.
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
GB/T 1591 Q345B steel plates/ coils available size
Thickness: 1.2-600mm
Width: 1220-4200mm
Length: 5000-18000mm
Notes: coil thickness ≤ 25mm
GB/T 1591 Q345B steel chemical composition
|
Grade |
C |
Si |
Mn |
P |
S |
Nb |
V |
|
Q345B |
≤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 |
- |
GB/T 1591 Q345B steel mechanical properties
|
Grade |
Thickness |
Yield strength |
Tensile strength |
|
Q345B |
≤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 Q345B H-beam welding production line. We can supply prime quality Q345B plates and Q345B steel beams for you, please send us inquiry if you need.
