Special material
Alpacca
Werkstoff number:
2.0740
Correspondence to specifications:
W. n. 2.0740; UNS 75600; UNI 9980; AFNOR NF A53-715; CuNi18Zn20; ASTM B122
Main applications:
Alpaca has considerable resistance to chemical agents and has often been used in the making of silverware, household utensils (cutlery), glasses frames, ornaments and religious items (rosaries), costume jewellery, jewellery, medical electrical devices, electrical contacts, surgical instriuments, coins, rivets and screws, musical instruments (flute, guitar keys, violin arches).
Alpaca is also used in the firearms sector (small firearms).
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CORROSION RESISTANCE

Description
Alpaca is a hard, white alloy, similar to silver in appearance (this is why it is also known as Argentan).
It mostly contains copper (50-65%), zinc (20-30%) and nickel (10-30%).
In Anglo-Saxon countries, this metal alloy is known as nickel-silver.
Good mechanical and corrosion resistance characteristics.
The presence of Nickel improves these characteristics and makes the alloy look very similar to silver.