Canada · CSA
100QT
G40.20/G40.21 — General requirements for rolled or welded structural quality steel/Strucrtural quality steel
Chemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| B | 0.0005 | 0.005 | ||
| C | 0.2 | |||
| Mn | 1.5 | |||
| P | 0.03 | |||
| S | 0.04 | |||
| Si | 0.15 | 0.35 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| bars, sections, rolled, <= 65 mm, heavy plate | 700 | 800 950.00 | 16 | 34 | ||
| bars, sections, rolled, <= 65 mm, HB | 厚板 235 293.00 | |||||
| bars, sections, rolled, > 65 mm <= 100 mm, heavy plate | 700 |