| Answer | Crossword Clue |
|---|---|
| STEEL | Iron alloy |
| STEEL | Alloy of iron |
| STEEL | Iron-carbon alloy |
| STEELY | Like an iron alloy |
| PEARLITE | Carbon and iron alloy. |
| PEARLITE | Alloy of carbon and iron. |
| INVAR | Alloy of iron and nickel |
| INVAR | Alloy of nickel and iron |
| AICH | Yellow alloy of copper, zinc, and iron. |
