Products Description
GB/T 700 Q235B is a low-carbon, mild steel plate produced under the Chinese national standard GB/T 700. It is designed for general structural applications, offering a balance of strength, ductility, and weldability.

The steel has a carbon content ≤0.22% and manganese 0.30–0.60%, which provide excellent formability and ease of fabrication while maintaining sufficient structural strength.
Q235B Chemical compositionMax % of the Product analysis of grade
|
C |
Si |
Mn |
P |
S |
|
0.20 |
0.35 |
1.40 |
0.045 |
0.045 |
Q235B Yield strength
|
Nominal thickness (mm) |
To 16 |
16-40 |
40-60 |
60-100 |
100-150 |
150-200 |
|
ReH - Minimum yield strength (MPa) |
235 |
225 |
215 |
215 |
195 |
185 |
Q235B Tensile Strength
|
Rm -Tensile strength (MPa) |
370-500 |
Q235B Impact Test degree and energy
|
|
Temperature ℃ |
Min Energy Nominal thickness |
|
Notch impact test. Min. absorbed energy |
+20 |
27 |
Equivalent grades of grade Q235B
Q235B Delivery Time Or Lead Time: 15-30days
Q235B 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 steel plate for Q235B, whether the new plate or stock list of material, please feel free to contact us by email of calling.




















