Global · Enterprise standard
KS EL-F
-- — -
Chemical composition
wt% · log scale- min – max range
- typical value
Mechanical properties
value range by conditionChemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| Al | 4 | 5 | ||
| C | 0.08 | 0.25 | ||
| Fe | 0.2 | 0.8 | ||
| H | 0.015 | |||
| N | 0.05 | |||
| O | 0.25 | |||
| Others each | 3.5 | 4.5 | Cr | |
| Ti | Bal |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| steel tubes, annealed | ≥828 | ≥895 | ≥10 | ≥20 |