Bismuth, pronounced: [bì]
Radical: 钅
Strokes: 10
Metal category: non-ferrous heavy metals
Bismuth: Bismuth is a silver-white to pink metal that is brittle and easily pulverized. The chemical properties of bismuth are relatively stable. Bismuth occurs in nature as free metals and minerals. Bismuth was previously considered to be the stable element with the largest relative atomic mass, but in 2003, it was discovered that bismuth has extremely weak radioactivity.
Extended information
The role of bismuth
1. Adding trace amounts of bismuth to steel can improve the processing performance of steel. Adding trace amounts of bismuth to malleable cast iron can make malleable cast iron have Performance similar to stainless steel.
2. Cu-Bi multi-component alloy can replace the lead-containing copper alloy used in drinking water pipe fittings, with a similar cost, and can solve the problem of lead pollution in tap water.
3. CuSn3Zn8Bi2-7, the same composite material can be obtained by replacing lead with bismuth in the alloy, achieving similar casting, mechanical and processing properties.
4. Adding bismuth to aluminum, magnesium and bronze can improve machining performance and wear resistance.