
Iron Disc
Iron Disc
| CRM No. | CKD 181A | CKD 181B | CKD 181C | CKD 188A |
| Base | Iron Disc | Iron Disc | Iron Disc | Iron Disc |
| Al | 0.0001 | 0.016 | 0.016 | 0.093 |
| Al(S) | <0.0001 | 0.014 | - | 0.083 |
| As | 0 | 0.029 | 0.029 | 0.005 |
| B | 0 | 0.0076 | 0.0076 | 0.0047 |
| Bi | 0 | - | - | - |
| C | -0.003 | 0.24 | 0.243 | 0.332 |
| Co | 0.0002 | 0.05 | 0.051 | 0.006 |
| Cr | 0.004 | 0.669 | 0.666 | 5.11 |
| Cu | 0 | 0.095 | 0.095 | 0.057 |
| Fe | 99.98 | 95.37 | - | 90.53 |
| Mn | 0.0001 | 0.988 | 0.988 | 0.169 |
| Mo | 0.004 | 0.395 | 0.394 | 1.28 |
| N | 0.0004 | 0.005 | 0.005 | 0.0076 |
| Nb | 0 | 0.062 | 0.063 | 0.122 |
| Ni | 0.0001 | 0.737 | 0.739 | 0.445 |
| P | 0.0004 | 0.042 | 0.042 | 0.006 |
| Pb | 0 | 0.0005 | 0.0005 | 0.001 |
| S | 0.0002 | 0.008 | 0.008 | 0.033 |
| Sb | 0 | 0.017 | 0.017 | 0.006 |
| Se | - | - | - | - |
| Si | 0.0004 | 0.445 | 0.443 | 0.775 |
| Sn | 0 | 0.122 | 0.122 | 0.005 |
| Ta | 0 | 0.042 | 0.042 | 0.022 |
| Ti | 0 | 0.155 | 0.159 | 0.034 |
| V | 0 | 0.307 | 0.307 | 0.802 |
| W | <0.0001 | 0.188 | 0.187 | 0.091 |
| Zr | 0 | 0.001 | 0.001 | 0.052 |