China · Baosteel Q/BQB
C10
Q/BQB 360:2009 — Q/BQB 360
Chemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| As | 0.05 | |||
| C | 0.07 | 0.13 | ||
| Cr | 0.15 | |||
| Cu | 0.2 | |||
| Mn | 0.3 | 0.6 | ||
| Ni | 0.15 | |||
| P | 0.035 | |||
| S | 0.035 | |||
| Si | 0.4 | |||
| Sn | 0.05 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| plates, strip, hot rolledrolled | 390 | 640–785 | ≥13 | ≥35 |