METALS (Group 2)

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Across
  1. 3. used to make electrical wiring, because of its good conductivity of electricity
  2. 7. crude iron as first obtained from a smelting furnace
  3. 8. silvery-white, lustrous metal, resistant to corrosion
  4. 10. combination of metals in a crystalline structure
  5. 11. low density and ability to resist corrosion
  6. 18. most abundant metallic element
  7. 19. designed for impact toughness
  8. 21. element that are ready to lose electrons
  9. 22. shininess of metal
  10. 24. tools used for drawing wire, and for blanking, bending, cutting, machine forging, and embossing
  11. 26. formed by heating coal to 2100*F
  12. 27. fastest steel-making process
  13. 28. form of ferrous alloy that is low carbon steel or iron cast from a molten state
  14. 29. strong under compression
  15. 30. used for galvanizing iron
Down
  1. 1. impurities are removed by adding this
  2. 2. heated above critical temperature and cooled rapidly in oil
  3. 4. element that has a melting point of 3,422*C
  4. 5. high density, resistance to corrosion, softness, low strength, good ductility and workability
  5. 6. abundant makes up 5% of the Earth's crust
  6. 9. element used to prevent steel from corroding
  7. 12. heat treatment process whereby heat is introduced to mobilize the atoms and relieve internal stress
  8. 13. uses electric arc from electrode to metal to melt it
  9. 14. able to be hammered into thin sheets
  10. 15. uses fuel to generate heat, and melt the metal
  11. 16. rare, naturally occurring metallic element of high value
  12. 17. is the process to reduce hardness and brittleness slightly of a hardened steel workpiece
  13. 20. ore is melted and separated in solution
  14. 23. able to be drawn out into thin wire
  15. 25. this is also used to remove impurities