EP 0568094 B1 19970820 - Nickel free non-ferrous heavy metal alloy and its use
Title (en)
Nickel free non-ferrous heavy metal alloy and its use
Title (de)
Nickelfreie Buntmetallegierung und deren Verwendung
Title (fr)
Alliage lourd non-ferreux, exempt de nickel et son application
Publication
Application
Priority
DE 4214304 A 19920430
Abstract (en)
[origin: EP0568094A1] Non-ferrous heavy-metal alloy, nickel-free apart from, at most, 0.09% as a result of smelting, having a composition in per cent by weight of: Mn: more than 5.0 up to 15.00% Al: from 4.0 to 7.50% Fe: from 1.0 to 2.80% B: from 0.0005 to 0.01% Si: from 0.0 to 0.30% Ni: from 0.0 to 0.09% C: from 0.0 to 0.08% S: from 0.0 to 0.03% P: from 0.0 to <0.01% the remainder being copper with impurities due to smelting. Such a copper mixed-crystal alloy is particularly suitable as a material for jewellery and metal objects which, in normal use, are in contact with the skin, especially for spectacle frames and parts of spectacle frames and coins. The alloys according to the invention do not trigger any nickel-caused allergies.
IPC 1-7
IPC 8 full level
CPC (source: EP)
Designated contracting state (EPC)
AT DE FR IT
DOCDB simple family (publication)
EP 0568094 A1 19931103; EP 0568094 B1 19970820; AT E157125 T1 19970915; DE 4214304 A1 19931104; DE 59307143 D1 19970925
DOCDB simple family (application)
EP 93107068 A 19930430; AT 93107068 T 19930430; DE 4214304 A 19920430; DE 59307143 T 19930430