Myth 1: Titanium conducts heat faster than aluminum
Correct answer: The thermal conductivity of titanium is very low, close to that of stainless steel, about 1/14 of aluminum and 1/5 of iron. This is the reason why cooking tends to burn easily.
Misunderstanding 2: High-purity titanium is very hard
Correct answer: The hardness of pure titanium is very small, less than 120 Brinell hardness. However, trace amounts of impurities can significantly increase its hardness, and its alloys are used outdoors.
Myth No. 3: Titanium is a rare metal with very little content on the earth.
Correct answer: Titanium content accounts for 0.6% of the earth, ranking ninth.
Myth 4: Titanium metal has a smaller specific gravity than aluminum
Correct answer: The density of titanium is 4.51, while that of aluminum is less than 2.7. Aluminum pots are heavy because they are so thick! I especially miss the old round aluminum lunch box!
Misunderstanding 5: Titanium metal has very low chemical activity
Correct answer: Dense titanium is relatively stable in the air, but is highly chemically active at high temperatures and can interact strongly with halogen elements, oxygen, sulfur, carbon, nitrogen, hydrogen, water vapor, carbon monoxide, carbon dioxide, and ammonia. Be careful when dry burning outdoors!
Misunderstanding No. 6: Titanium rod metal is highly corrosion-resistant to strong acids and alkalis.
Correct answer: Titanium is easily soluble in hydrofluoric acid, concentrated sulfuric acid, concentrated hydrochloric acid and aqua regia; it is not soluble in alkali solutions, but can interact strongly with molten alkali.
Myth No. 7: Titanium metal is not easily oxidized
Correct answer: Titanium metal, like aluminum, is prone to oxidation reactions and forms an oxide film to prevent further oxidation. The anodizing process is also easy to perform.
Myth No. 8: The vast majority of titanium products in the world are used in aerospace, heavy industry and other fields.
Correct answer: Most of the titanium ore produced every year in the world is used to produce titanium dioxide pigments.
