China · YB
Q345-E
YB/T 024:2008 — Steel strips for cable armouring
Chemical composition
wt% · log scale- min – max range
- typical value
Mechanical properties
value range by conditionChemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| Als | 0.015 | |||
| C | 0.18 | |||
| Cr | 0.3 | |||
| Cu | 0.3 | |||
| Mn | 1.7 | |||
| Mo | 0.1 | |||
| N | 0.012 | |||
| Nb | 0.07 | |||
| Ni | 0.5 | |||
| P | 0.025 | |||
| S | 0.02 | |||
| Si | 0.5 | |||
| Ti | 0.2 | |||
| V | 0.15 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| steel strip, 0.2mm < t <= 0.3mm, t | ≥295 | ≥20 Lo=50mm | ||||
| steel strip, t <= 0.2mm, t | ≥295 | ≥17 Lo=50mm | ||||
| steel strip, t <= 0.5mm, t | 1 | |||||
| steel strip, t > 0.3mm, t | ≥295 | ≥20 Lo=80mm | ||||
| steel strip, t > 0.5mm, t | 2.95 |