Classification Of Lead-tin Alloys

① Lead-based or tin-based bearing alloys. Alloys with lead-based bearings are collectively referred to as babbitt alloys. It contains 3% to 15% of antimony, 3% to 10% of copper, and some alloy varieties also contain 10% of lead. Antimony and copper are used to improve the strength and hardness of the alloy. It has a small friction coefficient, good toughness, thermal conductivity and corrosion resistance, and is mainly used to manufacture sliding bearings.

② Lead-tin solder. Mainly tin-lead alloys, and some tin solders also contain a small amount of antimony. Tin alloy containing 38.1% lead, commonly known as solder, has a melting point of about 183°C.

③ Lead-tin alloy coating. Using the corrosion resistance of tin alloy, it is coated on the surface of various electrical components, which is both protective and decorative. Commonly used are tin-lead and tin-nickel coatings.

④ Lead-tin alloys (including lead-tin alloys, lead-free tin alloys) can be used to produce all kinds of exquisite alloy jewelry and alloy handicrafts, such as rings, necklaces, bracelets, earrings, brooches, buttons, tie clips, hat ornaments, craft pendulums ornaments, alloy photo frames, religious emblems, miniature statues, souvenirs, etc.