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Quaternary alloy with proper addictions of nickel. To obtain quality
castings with high level of pressure seal, resistance and
ductility in castings with variable thickness both at high temperatures
and below zero.
Achieved according to the regulations of the table UNI 4855 "Casting
copper alloys as ingots and castings - Generalities and tests"
| Designation |
Composition |
Unitary
utimate tensile stress
R
[kgf/mm2] |
Elongation
A
[%] |
Brinell
hardness
HB
[kgf/mm2] |
Supply |
| CM |
Cu/Sn/Pb/Zn/Ni |
20÷25 |
8÷15 |
60÷70 |
Sand
casting
Coninuous casting
Centrifugal casting |
The trademarks of bronzes "CM" "DURAN" "MAC"
assure the unchangingness of mechanical and metallurgical characteristics
in the castings we produce.
CM
Structural applications, flanges, joints, steam valves, valves, pumps,
impellers, valves for overheating steam, supports, terminals, bearings
and gears submitted to an average stress.
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