SWISSMETAL C99                    C18700                                           AVINS

Guaranteed composition

Pb  0.80 - 1.20   P 0.01 - 0.04    Cu remainder

Main technological
characteristics

 C99 is a free machining copper alloy with high electrical conductivity.

Delivery form Specialties

drawn in round cross sections

 small diameters in wire (f max 0.250") and rod (f max 0.470")

Physical properties

density (68°F)

electrical conductivity

thermal conductivity

thermal capacity (specific heat)

coefficient of thermal expansion

magnetic properties

melting point

color

0.322 lb/in³

³85 %IACS

2634.7 Btu.in./h.ft².°F

0.092 Btu/lb.°F

0.0000094 in/in. °F

non magnetic

1974 °F

copper-red

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 (60)

average (50)

good (60)

good

average

good

average

average-weak

390°F - 4h at temperature

932°F - 1h at temperature

average

excellent

Typical mechanical
properties

modulus of elasticity =  16,676,330PSI

Corrosion resistance

stress corrosion

industrial atmosphere

rural atmosphere

marine atmosphere

chlorine (humid)

vinegar

fresh water

high relative humidity and elevated temperature

sea water

no sensitivity

average

good

average

poor

average

good

poor

average

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 steels containing less than 13% of chromium.

Typical applications

male contacts of connectors and other electronic applications