Wieland-werke Ag

Gbc Metals, LLC

Uwe Hofmann

Derek E Tyler

Andreas Boegel

Hilmar R Mueller

Michael Scharf

Joachim Riedle

Stephan Hansmann

Joerg Seeger

Wolfgang Dannenmann

Doris Humpenoeder-Boegel, Legal Representative

Monika Breu

Guenter Schmid

Michael Ebner

Peter William Robinson

Ralph A Mutschler

Hans Achim Kuhn

Andrea Kaufler

A lead-free copper alloy based on Cu&#x2014;Zn&#x2014;Si and a method of manufacture thereof. The copper alloy is built on the basis of copper, zinc and silicon without toxic additives and consists of: 70 to 83% Cu, 1 to 5% Si and the further matrix-active elements: 0.01 to 2% Sn, 0.01 to 0.3% Fe and/or Co, 0.01 to 0.3% Ni, 0.01 to 0.3% Mn, the remainder Zn and unavoidable impurities.

Lead-free copper alloy and a method of manufacture

A copper alloy contains from 4 to 20 wt. % tin and various other metals. The alloys can be used in the manufacture of structural parts which are joined together through the use of heat such as jewelry, clothing accessories and mechanically stressed structural parts in a general machine-building or automotive industry. Iron, titanium, zirconium, hafnium, manganese, zinc, phosphorus and lead can also be present in the alloy composition.

Copper-tin alloys and uses thereof

A copper-tin-titanium alloy which consists of 12 to 20% by weight tin, 0.002 to 1% by weight titanium, remainder copper and usual impurities. It is possible to add further elements. Semifinished products made from the copper alloy according to the invention are preferably produced by thin-strip casting or spray compacting. Due to a particularly advantageous combination of high mechanical strength properties with excellent ductility, combined with good resistance to corrosion, semifinished products made from the copper alloy according to the invention have numerous possible uses.

Copper-tin-titanium alloy

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Neu-Ulm, Germany

Uwe Hofmann