Aluminum bronze and preparation method thereof

The invention discloses an aluminum bronze. The aluminum bronze comprises the following components in percentage by weight: 9.0-18.0% of aluminum, 2.0-7.0% of iron, 1-5% of manganese, 0.01-1% of zinc and the balance of copper and inevitable impurities. The aluminum bronze has the following advantages that through utilizing specific element ratio, specific processing mode and composition, the tensile strength of the aluminum bronze can reach above 700 MPa, the Brinell hardness (HB) of the aluminum bronze is 300-400, and the compressive strength of the aluminum bronze is above 1000MPa; the aluminum bronze has high wear resistance; the friction coefficient of the aluminum bronze is less than 0.15, so that scratched products and adhered products cannot be caused; the alloy has good hot working character; the alloy has high anti-softening temperature; and the aluminum bronze is not added with noble elements such as Ag and Ni, does not need to be thermally treated, and the raw material and production costs are lowe