The Application GB/T 700 Q235B Carbon Steel Plate

Oct 22, 2025

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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.

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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.

 

info-536-393