High-strength brass copper sleeve chemical composition:

The high-strength brass chemical formula is ZCuZn24Al6Fe4Mn3 with a copper content of about 65% and a zinc content of about 24%. Aluminum improves the strength, hardness and corrosion resistance of brass. There are three types of brass room temperature: brass with a zinc content of less than 35%. The microstructure at room temperature consists of a single-phase α-solid solution called α-brass; it is mainly used for ordinary copper sleeves and self-lubricating copper sleeves. .

High-strength brass copper sleeve mechanical properties:

The high-strength brass copper sleeve has different zinc content and different mechanical properties. For α-brass, σb and δ are increasing with the increase of zinc content. Therefore, copper-zinc alloys containing more than 45% zinc have no practical value. The standard high-force brass Brinell hardness HB is greater than 200, the compressive strength is greater than 600 MPa, and the elongation is greater than 10%.

High force brass copper sleeve pressure processing performance:

High-strength brass bushings have good plasticity and can withstand hot and cold processing, but they are prone to moderate temperature brittleness during hot working such as forging. The specific temperature range varies with the amount of Zn, generally between 200 and 700 °C. between. Therefore, the temperature during hot working should be higher than 700 °C.

High-strength brass copper sleeve