1. Bronze with tin as the main alloying element. The tin content is generally between 3 and 14%, and it is mainly used to make elastic components and wear-resistant parts. Wrought tin bronze contains no more than 8% tin, and elements such as phosphorus, lead, and zinc are sometimes added. Phosphorus is a good deoxidizer and also improves fluidity and wear resistance. With high strength, corrosion resistance and excellent casting performance, it has been widely used in various industrial sectors for a long time.
2. Bronze containing 3% to 14% tin, in addition, phosphorus, zinc, lead and other elements are often added. It is the earliest alloy used by humans and has a history of about 4,000 years of use. It is corrosion-resistant, wear-resistant, has good mechanical properties and process properties, and can be welded and brazed well, and does not generate sparks when impacted. 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%.
3. Tin bronze is the non-ferrous metal alloy with the smallest casting shrinkage rate, which can be used to produce castings with complex shapes, clear outlines 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. Leaded tin bronze is often used as wear parts and sliding bearings. Zinc-containing tin bronze can be used for high airtight castings.