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The particular nickel amalgamation process used for their production
offers the possibility of getting castings with particular mechanical
characteristics, very compact structure, high toughness and impact strength
resistance; low friction coefficient with excellent antifriction
properties.
Achieved according to the regulations of the table UNI 4855 "Casting
copper alloys as ingots and castings - Generalities and tests"
| Designation |
Composition |
Unitary ultimate tensile stress
R
[kgf/mm2] |
Elongation
A
[%] |
Brinekll hardness
HB
[kgf/mm2] |
Supply |
CM5
CM5/A
CM8
CM8/A |
Cu/Sn/Ni
Cu/Sn/Ni
Cu/Sn/Ni
Cu/Sn/Ni |
28÷32
30÷38
28÷32
32÷38 |
15÷20
25÷35
10÷15
30÷40 |
60÷70
70÷90
80÷100
80÷100 |
Sand casting
Chill casting
Continuous casting
Centrifugal casting |
The trademarks of bronzes "CM" "DURAN" "MAC"
assure the unchangingness of mechanical and metallurgical characteristics
in the castings we produce.
CM5 - CM5/A - CM8 - CM8/A
Gears; scrolls; nut screws; high quality bearings subject to very high
impact strength.
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