 |
Resistance Heating Wire Nickel-Chromium
Alloy 80% Nickel / 20% Chromium - NI80
Factor by Which Resistance at Room Temperature Is to Be Multiplied to Obtain Resistance at Indicated Temperatures (These figures are given as a basis for engineering calculations and represent average material as supplied.)
CONTINUED
Alloy 80% Nickel / 20% Chromium - NI80
NEWPORT® NIC80 wire is a resistance heating wire comprised of 80% Nickel and 20% Chromium. NIC80 wire is commonly used as a resistor at elevated temperatures. NI/CR-80/20 is essential for resistor elements in high temperature applications such as electric furnaces, electric ranges and radiant heaters operating at temperatures up to 1150°C (2100°F). |
 |
||||||||||||
In addition to these qualities and standard uses, it has found wide
application in technical applications due to its combination of high
electrical resistance and its temperature coefficient of resistance
much less than that of Nickel-Chrome 60.
Specifications
Composition: 80% Ni, 20% Cr
Specific Resistance: 650 Ohms per circular mil-foot at 68°F (20°C). See table below for multiplication factors to obtain resistance at other temperatures.
Specific Gravity: 8.41
Density: 0.304 lb/in3
Melting Point: approx. 1400°C (2550°F)
Nominal Coefficient of Linear Expansion: 0.000017 (10-1000°C)
Tensile Strength (lb/in2) at 20°C (68°F): Hard Drawn: 200,000 Soft Annealed: 100,000
Nominal Temperature Coefficient of Resistance: 0.00011 Ohms/Ohm/°C (20-500°C)
Specifications
Composition: 80% Ni, 20% Cr
Specific Resistance: 650 Ohms per circular mil-foot at 68°F (20°C). See table below for multiplication factors to obtain resistance at other temperatures.
Specific Gravity: 8.41
Density: 0.304 lb/in3
Melting Point: approx. 1400°C (2550°F)
Nominal Coefficient of Linear Expansion: 0.000017 (10-1000°C)
Tensile Strength (lb/in2) at 20°C (68°F): Hard Drawn: 200,000 Soft Annealed: 100,000
Nominal Temperature Coefficient of Resistance: 0.00011 Ohms/Ohm/°C (20-500°C)
Factor by Which Resistance at Room Temperature Is to Be Multiplied to Obtain Resistance at Indicated Temperatures (These figures are given as a basis for engineering calculations and represent average material as supplied.)
|
Temp.
°F
|
68
|
200
|
400
|
600
|
800
|
1000
|
1200
|
1400
|
1600
|
1800
|
2000°F
|
|
Temp. °C
|
20
|
93
|
204
|
315
|
427
|
538
|
649
|
760
|
871
|
982
|
1093°C
|
|
Factor
|
1.000
|
1.016
|
1.037
|
1.054
|
1.066
|
1.070
|
1.064
|
1.062
|
1.066
|
1.072
|
1.078
|
|
Model
#
|
AWG
|
Current
Temperature Characteristics* °C (°F)
|
|||||
|
425
(800)
|
550
(1000)
|
650
(1200)
|
750
(1400)
|
875
(1600)
|
1100
(2000)
|
||
|
NI80-040-(†)
|
18
|
8.32
|
10.17
|
12.48
|
15.11
|
18.06
|
24.03
|
|
NI80-032-(†)
|
20
|
6.17
|
7.56
|
9.24
|
11.13
|
13.23
|
17.57
|
|
NI80-025-(†)
|
22
|
4.62
|
5.62
|
6.85
|
8.20
|
9.69
|
12.85
|
|
NI80-020-(†)
|
24
|
3.46
|
4.18
|
5.06
|
6.04
|
7.10
|
9.40
|
|
NI80-015-(†)
|
26
|
2.62
|
3.12
|
3.76
|
4.49
|
5.27
|
6.90
|
|
NI80-012-(†)
|
28
|
1.98
|
2.38
|
2.84
|
3.37
|
3.93
|
5.09
|
|
NI80-010-(†)
|
30
|
1.50
|
1.81
|
2.14
|
2.53
|
2.93
|
3.75
|
CONTINUED
|
Model
#
|
AWG
|
Dia.
|
Ohms
per ft @ 20°C (68°F)
|
Price
/ 50 ft.
|
Price/
200 ft.
|
|
NI80-040-(†)
|
18
|
0.040"
|
.4062
|
$21
|
$63
|
|
NI80-032-(†)
|
20
|
0.032"
|
.6348
|
$16
|
$48
|
|
NI80-025-(†)
|
22
|
0.0253"
|
1.015
|
$16
|
$48
|
|
NI80-020-(†)
|
24
|
0.0201"
|
1.609
|
$16
|
$48
|
|
NI80-015-(†)
|
26
|
0.0159"
|
2.571
|
$10
|
$30
|
|
NI80-012-(†)
|
28
|
0.0126"
|
4.094
|
$10
|
$30
|
|
NI80-010-(†)
|
30
|
0.010"
|
6.50
|
$10
|
$30
|
*
Showing approximate amperes necessary to produce a given temperature,
applying only to a straight wire stretched horizontally in free air.
Note: This wire is not intended for use in making thermocouple elements.
† Specify desired length in feet: 50 or 200.
Ordering Example: NI80-040-50 is a 50' spool of 18 gage bare wire, $21.
Note: This wire is not intended for use in making thermocouple elements.
† Specify desired length in feet: 50 or 200.
Ordering Example: NI80-040-50 is a 50' spool of 18 gage bare wire, $21.
Copyright 2003,
NEWPORT Electronics, Inc. All rights reserved.