Abstract: A copper-zinc alloy having the following composition (in % by weight): from 67.0 to 69.0% of Cu, from 0.4 to 0.6% of Si, from 1.2 to 1.6% of Mn, from 0.03 to 0.06% of P, optionally up to a maximum of 0.5% of Al, optionally up to a maximum of 0.15% of Ni, optionally up to a maximum of 0.1% of Fe, optionally up to a maximum of 0.1% of Pb, optionally up to a maximum of 0.08% of Sn, optionally up to a maximum of 0.1% of S, balance Zn and unavoidable impurities. The alloy has a microstructure which consists of an ?-phase matrix in which inclusions of manganese silicides having a globular shape are present in a proportion of at least 2% by volume and not more than 5% by volume.

Abstract: A copper-zinc alloy having the following composition (in % by weight): from 67.0 to 69.0% of Cu, from 0.4 to 0.6% of Si, from 1.2 to 1.6% of Mn, from 0.03 to 0.06% of P, optionally up to a maximum of 0.5% of Al, optionally up to a maximum of 0.15% of Ni, optionally up to a maximum of 0.1% of Fe, optionally up to a maximum of 0.1% of Pb, optionally up to a maximum of 0.08% of Sn, optionally up to a maximum of 0.1% of S, balance Zn and unavoidable impurities. The alloy has a microstructure which consists of an ?-phase matrix in which inclusions of manganese silicides having a globular shape are present in a proportion of at least 2% by volume and not more than 5% by volume.

Abstract: The invention relates to a material composite in strip form, process for producing said composite and use of the material composite as a sliding element. The material composite comprising a layer consisting of a copper multicomponent alloy which is permanently joined to a steel supporting layer, where the copper multicomponent alloy is composed of [in % by weight]: Ni 1.0 to 15.0%, Sn 2.0 to 12.0%, remainder Cu and inevitable impurities, optionally up to 5% manganese, optionally up to 3% silicon, optionally individually or in combination up to 1.5% Ti, Co, Cr, Al, Fe, Zn, Sb, optionally individually or in combination up to 0.5% B, Zr, P, S, optionally up to 25% Pb.

Abstract: The invention relates to a multicomponent copper alloy comprising [in % by weight]: Ni from 1.0 to 15.0%, Sn from 2.0 to 12.0%, Mn from 0.1 to 5.0%, Si from 0.1 to 3.0%, balance Cu and unavoidable impurities, if desired up to 0.5% of P, if desired individually or in combination up to 1.5% of Ti, Co, Cr, Al, Fe, Zn, Sb, if desired individually or in combination up to 0.5% of B, Zr, S, if desired up to 5% of Pb, and having Mn—Ni silicide phases which have a mass ratio of the elements [w(Mn)+w(Ni)]/w(Si) in the range from 1.8/1 to 7/1.

Abstract: The invention relates to a copper multicomponent alloy, consisting of [in % by weight]: Ni 1.0 to 15.0% Sn 2.0 to 12.0% Mn 0.1 to 5.0% Si 0.1 to 3.0%, remainder Cu and inevitable impurities, optionally individually or in combination up to 1.5% Ti, Co, Cr, Al, Fe, Zn, Sb, optionally individually or in combination up to 0.5% B, Zr, P, S, optionally up to 25% Pb.

Abstract: The invention relates to a material composite in strip form, in which a layer consisting of a copper multicomponent alloy is permanently joined to a steel supporting layer, where the copper multicomponent alloy is composed of. [in % by weight]: Ni 1.0 to 15.0%, Sn 2.0 to 12.0%, remainder Cu and inevitable impurities, optionally up to 5% manganese, optionally up to 3% silicon, optionally individually or in combination up to 1.5% Ti, Co, Cr, Al, Fe, Zn, Sb, optionally individually or in combination up to 0.5% B, Zr, P, S, optionally up to 25% Pb. The invention also relates to a process for producing the material composite in strip form, to the use of the material composite and to a composite sliding element.