本发明涉及Cu‑Zn‑Cr‑Zr‑Fe‑Si系合金及其制备方法。本发明的Cu‑Zn‑Cr‑Zr‑Fe‑Si系合金，硬度为180～250HV，抗拉强度为600～750MPa，屈服强度为550～700MPa，弹性模量为125～135MPa，伸长率为3～10％，导电率为70～85％IACS，耐热温度≥580℃，残余应力≤30MPa，解决了现有Cu‑Cr‑Zr合金的强度、导电性能、抗软化性能、低残余应力难以兼顾和匹配的问题。本发明还提供了上述Cu‑Zn‑Cr‑Zr‑Fe‑Si系合金的制备方法。

The present invention relates to Cu Zn Cr Zr Fe Si alloy and its preparation method. The Cu-Zn-Cr-Zr-Fe-Si alloy of the present invention has a hardness of 180-250HV, a tensile strength of 600-750MPa, a yield strength of 550-700MPa, an elastic modulus of 125-135MPa, an elongation of 3-10%, a conductivity of 70-85% IACS, a heat resistance temperature of ≥ 580 ℃, and a residual stress of ≤ 30MPa, solving the problem of difficulty in balancing and matching the strength, conductivity, softening resistance, and low residual stress of existing Cu-Cr-Zr alloys. The present invention also provides a preparation method for the above-mentioned Cu-Zn-Cr-Zr-Fe-Si alloy system.