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+39 02 907 81 812 Via Friuli, 5 20072 Fizzonasco di P.E. - Milano - Italy
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Via Martiri Della Resistenza, 6 20072 Fizzonasco di P.E. - Milano - Italy
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DULLFOS® 70

Raw materials
Copper-copper, copper-brass/bronze with deoxidizer

Composition
Cu 93 | P 7

Temp. Fusion °C
c.a.710-820 °C

Working Temp.°C
c.a. 730 °C

Density
c.a. 8,1 gr/cm3

Conducibility
m/Ωmm2

Technical data
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11

STATE OF SUPPLY

AvailableAvailable

On requestOn request

bar

Bar
Ø 0,7 – 9 mm
standard length: 500 mm

coated bars

coated bars
Ø 1,5 – 2 -3 mm
standard length: 500 mm

Animated wires and bars
ø: 2 – 5 mm
Bars: Length: 500 mm.
threads: skeins or coils

big wires

big wires
Ø 0,5 – 5 mm
(in skeins or coils)

fine wires

fine wires
ø: da 0,3 a 1,4 mm
ø: < 0,4 a request
(in skeins or coils)

rolled strip

rolled strip
thickness 0,1 – 0,9 mm
Width: 2 – 50 mm

rings and preformed

rings and preformed

Bars Extruded

APPLICATIONS

DULLFOS ® alloy [ is a silver-free phosphor copper alloy, which has good filling and capillarity characteristics. It is widely used in the production of heating, air conditioning, refrigeration, heat exchangers, mechanical equipment, electric motors, winding transformers. Production and repair of household appliances. For plumbing, for copper pipes for hot and cold water, construction and installation of copper gutters. In copper-copper unions it can be used without the use of deoxidizer, the use of which is also required in brazing copper-brass/bronze joints. Do not use in a sulphur-containing environment with Fe and Ni alloys. For heating, air conditioning, refrigeration, heat exchangers, mechanical equipment, electric motors, winding transformers. Production and repair of household appliances. For plumbing, for copper pipes for hot and cold water, construction and installation of copper gutters. The DULFOS ® is obtained with a special production process compared to the FOS 70; this allows a greater smoothness, a better cleaning of the joint and the possibility to resume the brazing seam just made, without problems of boiling.