Silver Alloys - AGNI

MATERIAL

Agni Noble technologies Agni Noble technologies Agni Noble technologies Agni Noble technologies
10%
20% in wire
20% in bars
40%

Nickel content % : 10 - 15 - 20 - 30 - 40 - 50
Size of grains Ø 2 to 5 μ

Manufacturing process : EXTRUSION, LAMINATED/ROLLING, DIE COMPACTED

NB : if the above criteria do not meet your needs, please contact us

 

Characteristics

Manufacturing process
EXTRUDED (E) or LAMINATED (B)
DIE COMPACTING (U)

Ni content (%)

10
20
30
40
30
40

Theorical density g/cm³

10.1
9.9
9.8
9.7
9.8
9.7

Vickers' hardness (annealed)

50±5
60±5
60±5
80±5
75±5
80±5

Electrical resistivity* at 20° C Ω mm²/m

0.0359
0.0639
0.115
0.246
0.0862
0.1724

Electrical conductibility at 20° C % IACS

48
27
15
7
20
10

 

Electrical Tests Results

Nickel is a refractory material (melting point 1455°C) which is very malleable. Adding Ni to Ag improves the hardness of the silver, allowing it to retain good mechanical properties after undergoing an electrical arc. The high conductivity of the material and its easy handling, makes it ideal for intense applications provided that the current is low eg. relays, minicontactors, circuit breakers.

Comparative erosion AC4, 12A :
AgNi 90/10
18%
AgCdO 90/10
16%
Ag
100%

AgNi alloys with 20, 30, 40 % Ni are normally used for moving contacts in protection switchgears (circuit breakers, RCCB) taking into account the quality of the arc mobility despite its tendency to weld.

Applications

Any type of switchgear using current of between 0.5 and 250 A and 24 and 600 V.

This material is ideal for moving contacts in safety devices with nominal currents greater than 32 A.

It is also particularly suited for relays and contactors operating between 0.5 and 20 A.

Equipment

  • Relays
  • Contactors (< 20 A)
  • Switches
  • Circuit breakers
  • RCCB
  • Push-buttons

Uses

  • Industrial automatisms
  • Transport : cars, railways
  • Lifts, forklift trucks
  • Regulating devices : thermostats

Other conditions

We manufacture according to our customers' specifications. Our technicians are readily available to discuss contact forms, dimensions and brazing requirements.