Astm 54 -
You likely mean one of the following:
| Element | Measured (wt%) | Requirement per ASTM E54 | |---------|----------------|---------------------------| | Fe | 0.008 | ≤0.010 | | Ni | 0.002 | ≤0.005 | | Si | 0.003 | ≤0.010 | | W | 0.12 | ≤0.20 | | Mo | Balance | Remainder | astm 54