Overview

Binary copper alloy and aluminium with a 5 to the 11% of aluminium, that it can contain also Fe , Mn and Neither to form alloys complejas.Las characteristic of these alloys come determined by their/its/your/his microestructura, that it is feature of the typesetting and of the industrious thermal processing. 



DESIGNATION (Kg/mm²) Limit elastic (Kg/mm²) Stretching (%) Hardness Brinell (HB) Conductivi.. electrical (%I.A.C.S)
K-401  Cu Al 5 
 R
F
38
45-53
15
30-45
55
25-15
85
115-140
15-18
K-402 Cu Al 8
R
F
42
50-57
17
35-43
45
20-15
90
130-150
13-15
K-403 Cu al 8 Fe 3
 
52-55 27-28 35-30 130-150 12-14
K-404 Cu Al 9 Mn 2
 
52-65 25-40 25-15 130-160 12-14
K-405 Cu Al 10 Fe 3
 
62-70 32-45 18-10 160-180 12-14
K-406 Cu Al 10 Fe 5 Ni 5
 
75-80 42-50 15-12 180-215 7-9
K-407 Cu Al 9 Ni 6 Fe 3
 
60-65 32-50 15 160-200 7-9


Applications, when is wanted to obtain a good:  K-401 K-402 K-403 K-404 K-405 K-406 K-407
Resistance to the corrosion  XX XX XX XX XX XXX XXX
Resistance to the warm oxidation  XXX XXX XXX XXX XXX XXX XXX
Tools A A A A XX XXX XX
Mechanical resistance X X XX XX XXX XXX XXX
Characteristic of friction  X X X XX XXX XXX XXX
To solder XX XX XXX XX XXX XXX XXX
Decorative effect  X XXX          
 

Approximate specific weight: 7,6 kg/dm³
R: Coved
F: Wrought
Other cuproaluminios special low demand

 
 
Supply In molten pieces, wrought, stamped or laminated 

 


 
 
Cobres K, SA