Q235 steel is equivalent to Japenese steel grade SS400 in application,divided into 4 quality grades: Q235A, Q235B, Q235C and Q235D.
Q235 Steel Mechanical Properties
| Grade | Yield Strength | Tensile Strength | Elongation % |
| Q235 Steel | 235 Mpa | 370-500 Mpa | 26 |
| Test Sample:16mm steel bar, (Mpa=N/mm2) | |||
1 MPa = 1 N/mm2
| Yield Strength (MPa, ≥); Thickness or Dia. (d) mm | Tensile Strength (MPa) | ||||||
| Steel Grade | Quality | d≤16 | 16< d ≤40 | 40< d ≤100 | 100< d ≤150 | 150< d ≤200 | d≤100 |
| Q235 | Q235A | 235 | 225 | 215 | 195 | 185 | 370-500 |
| Q235B | |||||||
| Q235C | |||||||
| Q235D | |||||||
Minimum Elongation
| Elongation (≥ %); Thickness or Dia. (d) mm | |||||
| Steel Grade | d≤40 | 40< d ≤60 | 60< d ≤100 | 100< d ≤150 | 150< d ≤200 |
| Q235 | 26 | 25 | 24 | 22 | 21 |
Minimum Charpy Impact
| Charpy impact (V notch) | |||
| Steel Grade | Quality | Temp. ℃ | Impact energy (longitudinal, ≥ J) |
| Q235 | Q235A | – | – |
| Q235B | +20 | 27 | |
| Q235C | 0 | ||
| Q235D | -20 | ||
