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The Leading Supplier of |
| PRECISION SEMI-FINISHED METALS | |
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SWISSMETAL
(NM6)
C79860
AVINS
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Main technological characteristics |
Free machining nickel silver offering a good balance between machining and cold forming. This material can advantageously replace alloy C79200. |
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Delivery
forms Specialties |
drawn in round and profile cross sections small diameters in rods (max. 0.600") and wires in coils or drums (max. 0.120") |
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Physical properties |
density (68°F) electrical conductivity thermal conductivity thermal capacity (specific heat) coefficient of thermal expansion magnetic properties melting interval color |
0.300 lb/in3 5 %IACS 208.0 Btu.in./h.ft2.°F 0.10 Btu/lb.°F 0.000011 in/in. °F non magnetic 1607 – 1670 °F gray-silver |
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Capacity
for forming/machining |
machinability rating (free cutting brass = 100) tool life (free cutting brass = 110) tendency for short chips (free cutting brass = 90) capacity for cold working capacity for hot working capacity for soft soldering capacity for hard soldering capacity for welding thermal stress relief annealing capacity for polishing capacity for galvanic plating |
good (90) good (90) good (90) good good good middle middle 570°F - 4h at temp. 1250°F - 1h at temp. good good |
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Typical mechanical properties |
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modulus of elasticity = 15,951,300 PSI |
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Corrosion
resistance |
stress corrosion industrial atmosphere rural atmosphere marine atmosphere chlorine (humid) vinegar fresh water high relative humidity and elevated temp. sea water |
slightly sensitive good good good poor middle good good (better than alloy C79200) middle-good |
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galvanic: |
Copper alloys present a high and positive standard potential of corrosion. Consequently, there is a risk of galvanic corrosion if they enter into contact with material of lower standard potential such as, for example, steels containing less than 13% chromium. |
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Typical
applications |
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