• Dali Electronics
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NICKEL COPPER ALLOYS

NiCu alloys and their welding consumables have a Ni content of 50-70 % and are known as Silverin alloys.

Application example:

  • Silverin 404 (NiCu45) is used for electronic components due to its low magnetic permeability
  • Silverin 400 (NiCu30Fe) has excellent resistance to liquid acids and seawater corrosion. Typical applications are plant and apparatus construction, as well as ship building.
  • Silverin 500 (NiCu30Al) can be age hardened due to the increased Aluminum and Titanium content.  The final hardness of the material prior to precipitation treatment is between 24-44 HRC. A prime application is the manufacture of doctor blades used in the paper industry. This alloy is also used to produce springs for the ship building industry.
  • IGS-Silverin 418 is the welding grade used to produce strip electrodes. This is used for overlay cladding of parts in the petrochemical and marine industries.

ALLOY

[table][table_head][table_row][table_heading_cell]AMW-TRADE NAME[/table_heading_cell][table_heading_cell]ALLOY[/table_heading_cell][table_heading_cell]STANDARD[/table_heading_cell][table_heading_cell]MATERIAL-No. DIN / UNS[/table_heading_cell][/table_row][/table_head][table_body][table_row][table_cell]Silverin 400[/table_cell][table_cell]NiCu30Fe[/table_cell][table_cell]DIN 17743 / ASTM B 127[/table_cell][table_cell]2.4360 / N 04400[/table_cell][/table_row][table_row][table_cell]Silverin 500[/table_cell][table_cell]NiCu30Al[/table_cell][table_cell]DIN 17743[/table_cell][table_cell]2.4375 / N 05500[/table_cell][/table_row][table_row][table_cell]Silverin 404[/table_cell][table_cell]NiCu45[/table_cell][table_cell][/table_cell][table_cell][/table_cell][/table_row][/table_body][/table]

AVERAGE CHEMICAL COMPOSITION (mass %)

AMW-TRADE NAME Ni (+Co) Al C Cu Fe Mn Si Ti
Silverin 400 min 63 28 1.0
max 0.5 0.15 34 2.5 2.0 0.5 0.3
Silverin 500 min 63 2.2 27 0.5 0.3
max 3.5 0.2 34 2.0 1.5 0.5 1.0
Silverin 404 min 54.5
max 55.5 0.1 0.1 bal. 0.3 0.1 0.1

PHYSICAL PROPERTIES

[table][table_head][table_row][table_heading_cell]AMW-TRADE NAME[/table_heading_cell][table_heading_cell]DENSITY[/table_heading_cell][table_heading_cell]THERMAL EXPANSION COEFFICIENT 20 – 100 ˚C[/table_heading_cell][table_heading_cell]CURIE-TEMPERATURE[/table_heading_cell][table_heading_cell]THERMAL CONDUCTIVITY AT 20 ˚C[/table_heading_cell][/table_row][/table_head][table_body][table_row][table_cell][/table_cell][table_cell]g/cm3[/table_cell][table_cell]10 -6/K[/table_cell][table_cell]˚C[/table_cell][table_cell]W/m˚K[/table_cell][/table_row][table_row][table_cell]Silverin 400[/table_cell][table_cell]8.8[/table_cell][table_cell]14[/table_cell][table_cell]50[/table_cell][table_cell]26[/table_cell][/table_row][table_row][table_cell]Silverin 500[/table_cell][table_cell]8.5[/table_cell][table_cell]13.7[/table_cell][table_cell]135* 100**[/table_cell][table_cell]19[/table_cell][/table_row][table_row][table_cell]Silverin 404[/table_cell][table_cell]8.9[/table_cell][table_cell]13[/table_cell][table_cell][/table_cell][table_cell]21[/table_cell][/table_row][/table_body][/table]

* solution heat treated / ** precipitation hardened

MECHANICAL PROPERTIES

AMW-TRADE NAME TEMPER YIELD STRENGTH Rp 0.2 TENSILE STRENGTH Rm ELONGATION HARDNESS
MPa MPa %
Silverin 400 annealed 250 550 40 120 HB
hard 860 5 200 HB
Silverin 500 annealed 275.415 620 – 760 50 – 25 85 HRB
hard 655.1100 930 – 1275 25 – 15 25 – 44 HRC
Silverin 404 Annealed 160 450 45 55 HRB

DIMENSIONS AND TOLERANCES (mm)

THICKNESS TOLERANCES

[table][table_head][table_row][table_heading_cell]THICKNESS[/table_heading_cell][table_heading_cell]WIDTH 10 – 100[/table_heading_cell][table_heading_cell]WIDTH > 100 – 200[/table_heading_cell][table_heading_cell]WIDTH > 200 – 300[/table_heading_cell][/table_row][/table_head][table_body][table_row][table_cell]0.10 – 0.20 [/table_cell][table_cell]± 0.010[/table_cell][table_cell]± 0.015[/table_cell][table_cell]± 0.015[/table_cell][/table_row][table_row][table_cell]> 0.20 – 0.30[/table_cell][table_cell]± 0.015[/table_cell][table_cell]± 0.015[/table_cell][table_cell]± 0.020[/table_cell][/table_row][table_row][table_cell]> 0.30 – 0.50[/table_cell][table_cell]± 0.020 [/table_cell][table_cell]± 0.020[/table_cell][table_cell]± 0.025[/table_cell][/table_row][table_row][table_cell]> 0.50 – 1.00[/table_cell][table_cell]± 0.025[/table_cell][table_cell]± 0.025[/table_cell][table_cell]± 0.030[/table_cell][/table_row][table_row][table_cell]> 1.00 – 1.50[/table_cell][table_cell]± 0.030[/table_cell][table_cell]± 0.040[/table_cell][table_cell]± 0.040[/table_cell][/table_row][table_row][table_cell]> 1.50 – 2.00[/table_cell][table_cell]± 0.040[/table_cell][table_cell]± 0.040[/table_cell][table_cell]± 0.050[/table_cell][/table_row][table_row][table_cell]> 2.00[/table_cell][table_cell]± 0.050[/table_cell][table_cell]± 0.050[/table_cell][table_cell]± 0.060[/table_cell][/table_row][/table_body][/table]

Other thickness and tolerances on request.

WIDTH TOLERANCES

[table][table_head][table_row][table_heading_cell]WIDTH[/table_heading_cell][table_heading_cell]THICKNESS 0.10 – 1.00[/table_heading_cell][table_heading_cell]THICKNESS > 1.00 – 1.80[/table_heading_cell][table_heading_cell]THICKNESS > 1.80 – 2.50[/table_heading_cell][/table_row][/table_head][table_body][table_row][table_cell]≤ 100[/table_cell][table_cell]+ 0.2[/table_cell][table_cell]+ 0.3[/table_cell][table_cell]+ 0.5[/table_cell][/table_row][table_row][table_cell]> 100 – 200[/table_cell][table_cell]+ 0.3[/table_cell][table_cell]+ 0.5[/table_cell][table_cell]+ 0.7[/table_cell][/table_row][table_row][table_cell]> 200 – 300 [/table_cell][table_cell]+ 0.6[/table_cell][table_cell]+ 1.0[/table_cell][table_cell]+ 1.2[/table_cell][/table_row][/table_body][/table]

Other thickness and tolerances on request.

WIDTH TOLERANCES

[table][table_head][table_row][table_heading_cell]THICKNESS[/table_heading_cell][table_heading_cell]LENGTH 500 – 300[/table_heading_cell][/table_row][/table_head][table_body][table_row][table_cell]0.40 – 2.00[/table_cell][table_cell]+ 10[/table_cell][/table_row][/table_body][/table]

Other tolerances on request.

PRODUCT FORM (mm)

[table][table_head][table_row][table_heading_cell]FORM[/table_heading_cell][table_heading_cell]THICKNESS[/table_heading_cell][table_heading_cell]WIDTH[/table_heading_cell][table_heading_cell]LENGTH[/table_heading_cell][table_heading_cell]COIL-ID[/table_heading_cell][table_heading_cell]COIL-OD[/table_heading_cell][/table_row][/table_head][table_body][table_row][table_cell]Strip[/table_cell][table_cell]0.10 – 2.50[/table_cell][table_cell]10 – 300[/table_cell][table_cell][/table_cell][table_cell]300 / 400 / 500[/table_cell][table_cell]max. 1100[/table_cell][/table_row][table_row][table_cell]Cut length[/table_cell][table_cell]0.40 – 2.00[/table_cell][table_cell]50 – 300[/table_cell][table_cell]500 – 3000[/table_cell][table_cell][/table_cell][table_cell][/table_cell][/table_row][/table_body][/table]