Abstract: The invention relates to a method for producing metal components, consisting at least partially of a copper alloy, comprising the following alloy components in wt. %: 0 wt. %<Sn?8 wt. %; 0 wt. %<Zn?6 wt. %; 0.1 wt. %?S?0.7 wt. %; optionally no more than 0.2 wt. % phosphorus; optionally no more than 0.1 wt. % antimony; and optionally iron, zirconium and/or boron alone or in a combination of two or more of said elements of no more than 0.3 wt. %; and unavoidable impurities, and the rest being copper. The method comprises the following stages: (a) melting the copper alloy: (b) producing press blanks from the copper alloy; and (c) pressing the press blanks at a suitable pressing temperature to form the metal components. The invention also relates to a metal component which has been produced according to a method of this type.

Abstract: The present invention relates to a domestic service pipe system which comprises the following components: solid plastic pipes, composite plastic pipes and/or composite metal/plastic pipes as line pipes (3, 3?, 3?); threadless shaped parts of temperature-resistant plastic and/or stainless steel; and threaded shaped parts (1, 1?) of stainless steel. Moreover, the present invention relates to the use of such a domestic service pipe system as a line and connection system in a drinking water installation, in a sprinkler system, in radiator connections, in a concrete core temperature control system and in a panel heating and/or panel cooling system.