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Overview
These copper alloys - berilio with Co o/y Neither possess characteristic mechanical very high, similar to the high resistance steels, once submitted to the thermal processing adecuado.Also have a good conductivility thermal and electrical, as well as excellent elastic characteristic.The are resistant to the corrosion and possess properties anspark and amagnéticas.
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| 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 |
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