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cooper-berilium

     
Overview

These copper alloys - berilium with Cu have high mechanical chateristics similar to the high ressistance steels, once submitted to the accurate thermal processing. Also have a good thermal and electrical conductivity, as well as an excellent flexible characteristics.They are resistant to the corrosion and gets magnetical properties.

 

DESIGNATION

K-301

K-302

K-303

K-304

Composition nominal chemistry

98,35 % Cu
0.35 % Be
1,3 % Ni

96,9 % Cu
0,6 % Be
2,5% Co-Ni

98 % Cu
1,7% Be
0,3% Co-Ni

97,5 % Cu
2 % Be
0,5% Co-Ni

Electrical Conductivility % I.A.C.S.

50-80

40-50

25

18

Hardness Rockwell
Hardness Brinell HB

R/B 76-86
140-170

R/B 89-97
180-230

R/C 33-37
320-360

R/C 33-43
360-410

Resistance to the traction Kg/mm²

62-69

65-75

101-110

109-115

Stretching 50 mm %

5-11

3-10

2-4

1

Limit elastic Kg/mm²

32-39

40-55

63-69

70-84

Softening
temperature ºC

500

500

300

300

Weight I specify Kg/dm³

8,65

8,62

8,26

8,09

 

Equivalences

C.A.N.º822

Class 3 R.W.M.A. UNE C-54 XX C.A.Nº820 UH 2 Be de AFNOR

Class 4 R.W.M.A.
UNE C-54 C.A.N.º824

C.A.N.º825

Applications

Tweezers arms, carries electrodes and utillajes of weld by resistance

Parts of you scheme useful and weld electrodes by resistance, aparellaje electrical, contacts, pistons to you scheme of injecting aluminium...

Security tools, unspark and antimagnéticas, court pieces, supports for contacts, elastic clips

Molds to I talk, trolley pulleys...

Supply

Melted, Wrought, Print

Melted, Wrought,
Print

Melted, Laminated

Melted

 

pistones cobre berilio
Example of one of the products we supply. Beryllium copper pistons.

 
 
   
 
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