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The very-thin-grain molecular structure provides a very high hardness
without detriment to processability. Its inert behaviour towards
other metals, together with its tendency to self-smoothing make
it ideal for use it is intended for. Actually, going on using it, increasing
hardening can be obtained on the surface while keeping remarkable
antifriction properties. The alloy is forgeable and susceptible to thermal
treatment.
Achieved according to the regulations of the table UNI 4855 "Casting
copper alloys as ingots and castings - Generalities and tests"
VALUES REFERRED TO FORGES PIECES
| Designation |
Composition |
Unitary ultimate tensile
stress
R
[kgf/mm2] |
Elongation
A
[%] |
Brinell hardness
HB
[kgf/mm2] |
Supply |
DURAN 510
DURAN 512
DURAN 514
DURAN Co |
Cu/Al/Fe
Cu/Al/Fe
Cu/Al/Fe
Cu/Al/Fe/Ni/Co |
50÷65
50÷65
50÷70
50÷70 |
10÷20
1÷5
0÷0,5
0÷4 |
120÷150
180÷220
320÷350
320÷380 |
Sand cast
Forged |
 
The trademarks of bronzes "CM" "DURAN" "MAC"
assure the unchangingness of mechanical and metallurgical characteristics
in the castings we produce.
DURAN 510 - DURAN 512
Elicoidal ring gears, scrolls, gibs, wearing plates; matrix pushers
for extrusion; molds for plastic materials; ducting rolls for stainless
steel pipes.
DURAN 514
Owing the remarkable hardness and extreme brittleness it is exclusively
used for the building of stainless steel molds for deep padding; lathe
processing is possible, only, but with very cautiously.
DURAN Co
Very similar to DURAN 514 but with even greater hardness; lower brittleness
and better processability.
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