In addition to tin bronze containing 3% to 14% tin, phosphorus, zinc, lead and other elements are often added. It is the earliest alloy used by mankind, and it has been used for about 4,000 years. It is corrosion-resistant, wear-resistant, has good mechanical properties and process performance, and can be welded and brazed well without sparks during impact. Divided into processed tin bronze and cast tin bronze. The tin content of tin bronze used for pressure processing is less than 6% to 7%, and the tin content of cast tin bronze is 10% to 14%. Tin bronze is a non-ferrous metal alloy with the smallest casting shrinkage. It can be used to produce castings with complex shapes, clear contours and low air tightness requirements. Tin bronze is very resistant to corrosion in the atmosphere, sea water, fresh water and steam, and is widely used in steam boilers and marine ship parts. Phosphorus-containing tin bronze has good mechanical properties and can be used as wear-resistant parts and elastic parts of high-precision machine tools. Lead-containing tin bronze is often used as wear-resistant parts and sliding bearings, and zinc-containing tin bronze can be used as high-airtight castings.
