The steels of Q235A and Q235B are all carbon steels. In the national standard GB700-88, the material distinction between Q235A and Q235B is mainly based on the carbon content of the steel. The carbon content of the material of Q235A is between 0.14 and 0.22%; the material of Q235B is not subjected to impact experiments, but Often do temperature shock test, V-notch. Relatively speaking, the mechanical properties of steel made of Q235B are far superior to those of steel made of Q235A.
Q195 Q235 CARBON STEEL H PROFILE Bending Test Results
| Grade | Sample Orientation | Cold Bending Test 180° (B=2a) |
| Diameter of Curve Center (Steel Ø ≤ 25mm) | ||
| Q195/Q235 | Vertical | 0 |
| Horizontal | 0.5a |
Q195 steel is a Chinese plain carbon structural steel, yield strength: 195 MPa, tensile strength: 315-430 MPa, material density: 7.85 g/cm3. “Q” is the first letter of Chinese spelling of “qu fu dian”, the translation is “Yield Point” or “Yield Strength”, “195” is indicates the unit value “195 MPa”. Datasheet is tested with 16mm thickness steel bars or steel plates.
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