Year 10Y1 Engineering Crossword

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Across
  1. 1. Lightweight metal (9)
  2. 3. Metal working technique (7)
  3. 6. A very ductile material (6)
  4. 8. Combination of metals (5)
  5. 9. Expensive and strong composite material (11)
  6. 11. Used to strengthen concrete (5)
  7. 13. Joining metals by melting (7)
  8. 15. Lightweight metal used for tent poles (9)
  9. 17. Protective Gas for welding (6)
  10. 18. Metal Mixed with carbon (5)
  11. 19. Non metal material (9)
  12. 21. Mixture used in brazing (4)
Down
  1. 2. Heat Treatment process (8)
  2. 4. Metal joining process(9)
  3. 5. A type of ceramic (9)
  4. 7. Heat resistant glass (5)
  5. 10. Shiny corrosion resistant metal (8)
  6. 12. Hard wearing metal alloy (8)
  7. 14. A form of Iron(6)
  8. 16. High Strength alloy (8)
  9. 20. A type of welding (3)