Features and Application Notes
ISA-ZIN is especially noted for high resistance to oxidation and
chemical corrosion, as well as a relatively low resistivity. It is used
for resistors of any type and for heating cords, cables and heating
mats. Ribbons for instance are used for heating of bimetals. The
maximum working temperature in air is +500 °C.
Form of Delivery
ISA-ZIN is supplied in the form of round wires in the range 0.04 to
8.00 mm Ø in bare or enamelled condition flat wires, stranded wires,
ribbons and sheets.
1) This value applies to wires of 2.0 mm diameter. For thinner wires the minimum values will substantially increase, depending on the dimensions.
Notes on Treatment // ISA-ZIN can be worked easily. This alloy
can be soldered and brazed without difficulty. All known welding
methods can be used.
Physical Characteristics (Reference Values)
Density at +20 °C
Melting point
Specific heat
at +20 °C
Thermal conducti-
vity at +20 °C
Average linear thermal expansion coefficient
between +20 °C and
Thermal EMF
against copper at
+100 °C +400 °C +20 °C
g/cm³ lb/cub in °C J/g K W/m K 10
-6
/K 10
-6
/K µV/K
8.90 0.32 +1,150 0.37 33.00 16.00 17.50 -30.00
Strength Properties at +20 °C in Annealed Condition
Tensile Strength
1)
Elongation (L
0
= 100 mm) % at nominal diameter in mm
MPa psi
0.020 to 0.063 > 0.063 to 0.125 > 0.125 to 0.50 > 0.50 to 1.00 > 1.00
350 50,750 ≈ 12 ≈ 18 ≈ 20 ≥ 20 ≥ 25
Electrical Resistance in Annealed Condition
Temperature coefficient of electrical
resistance between
Electrical resistivity in: µΩ x cm (first line) and Ω/CMF (second line)
Reference Values
+20 °C and +105 °C
10
-6
/K
+20 °C
tolerance ±5 %
+100 °C +200 °C +300 °C +400 °C +500 °C
approx. +180 30 30.4 31 31.5 32.1 32.6
180 183 186 189 193 196
Brand
Name
ISA-ZIN
Material
Code
2.0881
Abbreviation
CuNi23Mn
Chemical Composition (mass components) in %.
Average values of alloy components
Cu
Rem.
Ni
23
Mn
1.5
1/3 Data sheets // ISA-ZIN // 7
Issue 29-March-2014
2/3 Data sheets // ISA-ZIN // 7
Nominal Diameter
mm
Cross Section
mm²
Weight
per 1.000 m
g
DC Resistance Referred to Length at +20 °C
Ω/m
Nominal Value
Tolerance Minimum Value Maximum Value
0.040 0.001257 11.20 239
±8 %
220 258
0.045 0.001590 14.20 189 174 204
0.050 0.001963 17.50 153 141 165
0.056 0.002463 21.90 122 112 132
0.060 0.002827 25.20 106 97.6 115
0.063 0.003117 27.70 96.2 88.5 104
0.070 0.003848 34.30 78.0 71.7 84.2
0.071 0.003959 35.20 75.8 69.7 81.8
0.080 0.005027 44.70 59.7 54.9 64.5
0.090 0.006362 56.60 47.2 43.4 50.9
0.100 0.007854 69.90 38.2 35.1 41.3
0.110 0.009503 84.60 31.6
±7 %
29.4 33.8
0.112 0.009852 87.70 30.5 28.3 32.6
0.120 0.01131 100.70 26.5 24.7 28.4
0.125 0.01227 109.00 24.4 22.7 26.2
0.130 0.01327 118.00 22.6 21.0 24.2
0.140 0.01539 137.00 19.5 18.1 20.9
0.150 0.01767 157.00 17.0 15.8 18.2
0.160 0.02011 179.00 14.9 13.9 16.0
0.180 0.02545 226.00 11.8 11.0 12.6
0.200 0.03142 280.00 9.55
±6 %
8.98 10.1
0.220 0.03801 338.00 7.89 7.42 8.37
0.224 0.03941 351.00 7.61 7.16 8.07
0.250 0.04909 437.00 6.11 5.74 6.48
0.280 0.06158 548.00 4.87 4.58 5.16
0.300 0.07069 629.00 4.24 3.99 4.50
0.315 0.07793 694.00 3.85
±5 %
3.66 4.04
0.350 0.09621 856.00 3.12 2.96 3.27
0.355 0.09898 881.00 3.03 2.88 3.18
0.400 0.1257 1,120.00 2.39 2.27 2.51
0.450 0.1590 1,420.00 1.89 1.79 1.98
0.500 0.1963 1,750.00 1.53 1.45 1.60
Issue 29-March-2014