Q235B Mild Steel
OTAI SPECIAL STEEL is GB Q235B mild steel stockholders and suppliers from china. we have more 16 years experience in Q235 steel plate, round bar, flat bar, square bar supply field.
GB Q235B mild Steel is chinese standard Q235 steel series of low carbon structural steel, Q235 steel series have A, B, C , D, E quality grade. GB Q235B steel is equivalent with the European standard of DIN EN S235JR.
Related Specifications GB/T 700-1988
Chemical composition
| C(％) | 0.12～0.20 | Si(％) | ≤0.30 | Mn(％) | 0.30～0.70 |
| P(％) | ≤0.045 | S(％) | ≤0.45 | ||
Form of Supply
GB Q235B mild low carbon steel, we can supply the round bar, flat bar, plate, hexagonal and square block. Diameters can be sawn to your required lengths as one offs or multiple cut pieces. Rectangular pieces can be sawn from flat bar or plate to your specific sizes. Ground tool steel bar can be supplied, providing a quality precision finished bar to tight tolerances.
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- Round
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- sheet
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- Plate
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- Square
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- Hexagonal
Applications
Q235B steel is a low carbon structural steel, it be used for welding, bolt connection, riveting structure. as Buildings, Bridges, ships, vehicles structure, manufacturing a variety of tools and cutters, mould and measuring tool, etc
Regular size and Tolerance
| 1) Hot Rolled round bar | |||
| Diameter (mm) |
Diameter Tolerance (mm) |
Diameter (mm) |
Diameter Tolerance (mm) |
| ≤12.70 | -0.13 ～0.30 | >50.80～63.5 | -0.25～0.76 |
| 12.7～25.40 | -0.13～0.41 | >63.50～76.20 | -0.25～1.02 |
| >25.4～38.10 | -0.15～0.51 | >76.20～101.60 | -0.30～+1.27 |
| >38.1～50.80 | -0.20～0.64 | >101.60～203.20 | -0.38～3.81 |
| 2) Hot Rolled steel plate | |||
| Thickness (mm) |
Thickness Tolerance (mm) |
Thickness (mm) |
Thickness Tolerance (mm) |
| ≤25.4 | -0.41～0.79 | >127～152 | -1.60～2.39 |
| >25.4～76 | -0.79～1.19 | >178～254 | -1.98～3.18 |
| >76～127 | -1.19～1.60 | >254～305 | -2.39～3.96 |
Others have not specified size, pls contact our experienced sales team.
Processing
Q235B mild steel round bar and flat sections can be cut to your required sizes. Q235B low carbon steel grind bar can also be supplied, providing a good quality steel precision ground tool steel bar to your required tolerances. Q235B steel is also available as Grind Flat Stock / Gauge Plate, in standard and nonstandard sizes.
Contact our experienced sales team to help you with your Q235B low carbon steel questions and inquiry by Email or Telphone. The Q235 steel questions will be reply in 24 hours.
