CARBON STEEL H PROFILE Q235 and Q345 is also called A3 plate. Ordinary carbon structural steel plain plate is a kind of steel material. Q represents the yield limit of this material, and the following 235 refers to the yield value of this material, which is about 235MPa. The yield value of the material will decrease with the increase of the thickness of the material. Due to the moderate carbon content, the comprehensive properties are good, and the strength, plasticity, welding and other properties are well matched, which is the most widely used.
CARBON STEEL H PROFILE Q235 Minimum Charpy Impact
| Charpy impact (V notch) | |||
| Steel Grade | Quality | Temperature. °C | Impact energy (longitudinal, ≥ J) |
| Q235 | Q235A | – | – |
| Q235B | +20 | 27 | |
| Q235C | 0 | ||
| Q235D | -20 | ||
Bending Test Results of CARBON STEEL H PROFILE Q345
| Cold Bending Test 180° (B=2a) | |||
| Grade | Sample Orientation | Steel Dia. (d) of Curve Center | |
| d≤ 60mm | 60<d≤100 mm | ||
| Q345 | Vertical | a | 2a |
| Horizontal | 1.5a | 2.5a | |
CARBON STEEL H PROFILE Q345 is a steel material. It is a low alloy steel, widely used in bridges, vehicles, ships, buildings, pressure vessels, special equipment, etc. "Q" means yield strength, and Q345 means that the yield strength of this steel is 345MPa. Q345 will reduce its yield value with the increase of material thickness. In addition, the strength of domestic products may be less than 345, so the strength must be less than 345 in mechanical design, otherwise there will be problems.
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