Omega Products NIC60-020-156 User Manual

Coiled Nickel-Chromium

Manufactured

Alloy Resistance Wire

Continuous Lengths to 3500 Meters (10,000 Feet)

80% Nickel/20% Chromium and 60% Nickel/16% Chromium (Balance Iron)

NIC80 and NIC60

7.5 m (25')

(spooled length)

U Most Popular Sizes

and Gages Supplied
Off-the-Shelf!

U Available in English Sizes
U Consult Factory for Your

Special Requirements or
OEM Needs

Available in a range
of wire gages and
coil diameters.

An Exclusive

OMEGA

Innovation

Our nickel-chromium alloy
resistance heating wire is
now available coiled for
ready use. Coiled heating wire
is used in many high-temperature
applications, including electric
furnaces, radiant heating, and
air heating.

NIC80 is an alloy of 80% nickel and
20% chromium and represents the
highest standard in materials for
use in elevated temperature
environments. It is useable at
temperatures up to 1150°C (2100°F).

NIC60 contains 60% nickel and
16% chromium, with the balance
iron, and can be used up to 1000°C
(1850°F). It is the benchmark
material, most widely accepted and
employed in electrical heating.

Both of these alloys also provide
excellent corrosion resistance.

Coils using 18 to 30 AWG wire
with 25 to 100 turns per inch are
standard. Custom coil dimensions
are also available.

Dimensions mm (inch)

Specifications

NIC80

Composition: 80% Ni, 20% Cr
Specific Resistance: 650 Ω per circular

mil-foot at 20°C (68°F);
see table for straight nickel-chromium
wire multiplication factors to obtain
resistance at other temperatures

Specific Gravity: 8.41
Density: 0.304 lb/in
Melting Point: ≈1400°C (2550°F)
Nominal Coefficient of Linear

Expansion: 0.000017 (10 to 1000°C)
Nominal Temperature

Coefficient of Resistance:

0.00011 Ω/Ω/°C (20 to 500°C)

Tensile Strength (lb/in
20°C (68°F):

Hard Drawn: 200,000
Soft Annealed: 100,000

3

2

) @

Shown smaller
than actual size.

NIC60

Composition: 60% Ni, 16% Cr, 24% Fe
Specific Resistance: 675 Ω per circular

mil-foot at 20°C (68°F);
see table for straight nickel-chromium
wire multiplication factors to obtain
resistance at other temperatures

Specific Gravity: 8.25
Density: 0.298 lb/in
Melting Point: ≈1350°C (2450°F)
Nominal Coefficient of Linear

Expansion: 0.000017 (20 to 1000°C)
Nominal Temperature

Coefficient of Resistance:

0.00015 Ω/Ω/°C (20 to 500°C)

Tensile Strength (lb/in
Hard Drawn: 200,000
Soft Annealed: 95,000

CAUTION AND WARNING!

Spools of wire are supplied tightly
compacted. Never use precoiled wire
without extending to at least three
times the compacted (spooled) length

3

2

) @ 20°C (68°F):

.

As supplied Partially extended

(compacted) (four times)
50 turns/25 (1) 12.5 turns/25 (1) Fully extended

Fully-extended wire (Model No. NIC80-020-125) is 16.5 times the “as supplied” coiled length.

H-21

An Exclusive

OMEGA

NIC80: 80% Nickel, 20% Chromium

Manufactured

Innovation

To Order Visit omega.com/nic60_nic80 for Pricing and Details

OD of 25 mm (1") Fully Ω
Model Wire Dia. Compacted Turns/ Extended per inch of Coil
Number AWG mm (inch) Coil mm (") ±10% inch Length mm (inch) @ 20°C (68°F)

NIC80-040-250 18 1.0 (0.040) 6.4 (0.250) 25 418 (16.5) 0.558
NIC80-032-250 20 0.81 (0.032) 6.4 (0.250) 31 538 (21.2) 1.132
NIC80-032-188 20 0.81 (0.032) 4.8 (0.188) 31 389 (15.3) 0.810
NIC80-025-250 22 0.64 (0.253) 6.4 (0.250) 40 119 (28.3) 2.450
NIC80-025-188 22 0.64 (0.253) 4.8 (0.188) 40 521 (20.5) 1.775
NIC80-020-156 24 0.51 (0.0201) 4.0 (0.156) 50 541 (21.3) 3.000
NIC80-020-188 24 0.51 (0.0201) 4.8 (0.188) 50 671 (26.4) 3.574
NIC80-020-125 24 0.51 (0.0201) 3.2 (0.125) 50 419 (16.5) 2.233
NIC80-015-125 26 0.40 (0.0159) 3.2 (0.125) 66 579 (22.8) 5.546
NIC80-012-125 28 0.32 (0.0126) 3.2 (0.125) 83 749 (29.5) 11.128
NIC80-010-125 30 0.25 (0.010) 3.2 (0.125) 100 917 (36.1) 19.570
NIC80-010-093 30 0.25 (0.010) 2.4 (0.093) 100 663 (26.1) 14.138
NIC80-010-062 30 0.25 (0.010) 1.6 (0.062) 100 414 (16.3) 8.849

Consult Sales Department for quantity discount over 200'.
Ordering Example: NIC80-010-125-200 is 30-gage 80% nickel/20% chromium alloy resistance cable,
precoiled in 0.125" OD coils, 200' (spooled length).

NIC60: 60% Nickel, 16% Chromium

OD of 25 mm (1") Fully Ω
Model Wire Dia. Compacted Turns/ Extended per inch of Coil
Number AWG mm (inch) Coil mm (") ±10% inch Length mm (inch) @ 20°C (68°F)

NIC60-040-250 18 1.0 (0.040) 6.4 (0.250) 25 419 (16.5) 0.580
NIC60-032-250 20 0.81 (0.032) 6.4 (0.250) 31 538 (21.2) 1.176
NIC60- 032-188 20 0.81 (0.032) 4.8 (0.188) 31 389 (15.3) 0.841
NIC60-025-250 22 0.64 (0.253) 6.4 (0.250) 40 119 (28.3) 2.545
NIC60-025-188 22 0.64 (0.253) 4.8 (0.188) 40 521 (20.5) 1.843
NIC60-020-188 24 0.51 (0.0201) 4.8 (0.188) 50 671 (26.4) 3.711
NIC60-020-156 24 0.51 (0.0201) 4.0 (0.156) 50 541 (21.3) 2.966
NIC60-020-125 24 0.51 (0.0201) 3.2 (0.125) 50 419 (16.5) 2.319
NIC60-015-125 26 0.40 (0.0159) 3.2 (0.125) 66 579 (22.8) 5.760
NIC60 -012-125 28 0.32 (0.0126) 3.2 (0.125) 83 749 (29.5) 11.556
NIC60-010-125 30 0.25 (0.010) 3.2 (0.125) 100 917 (36.1) 20.322
NIC80-010-093 30 0.25 (0.010) 2.4 (0.093) 100 663 (26.1) 14.681
NIC60-010-062 30 0.25 (0.010) 1.6 (0.062) 100 414 (16.3) 9.189

Consult Sales Department for quantity discount over 200'.
Ordering Example: NIC60-010-125-50 is 18-gage 60% nickel/16% chromium alloy resistance cable,
precoiled in 0.125" OD coils, 50' (spooled length).

Current Temperature Characteristics*

NIC80 Coiled Wire Current Characteristics (Amps) NIC60 Coiled Wire Current Characteristics (Amps)
Wire Dia. 425°C 540°C 650°C 760°C 875°C 1100°C 425°C 540°C 650°C 760°C 875°C 1100°C

AWG

mm (")

(800°F) (1000°F) (1200°F) (1400°F) (1600°F) (2000°F) (800°F) (1000°F) (1200°F) (1400°F) (1600°F) (2000°F)

18 1.0 (0.040) 5.41 6.93 8.48 10.41 12.48 16.70 5.20 6.65 8.14 10.00 11.92 16.03
20

0.81 (0.032)

22

0.64 (0.0253)

24

0.51 (0.0201)

26

0.40 (0.0159)

28

0.32 (0.0126)

30

0.25 (0.010)

Showing approximate current in amperes necessary to raise a coil of arbor size of 1⁄8" diameter, to a given temperature, when stretched twice

*

the close-wound length in open air.

3.72 4.84 6.01 7.44 8.96 12.20 3.56 4.64 5.77 7.15 8.60 11.71

2.48 3.15 3.84 4.93 6.13 8.81 2.39 3.03 3.69 4.74 5.89 8.46

2.05 2.59 3.13 3.82 4.55 6.07 1.96 2.47 3.00 3.67 4.36 5.83

1.50 1.93 2.37 2.87 3.39 4.47 1.44 1.86 2.28 2.76 3.26 4.29

0.93 1.22 1.51 1.87 2.26 3.09 0.89 1.18 1.45 1.80 2.17 2.97

0.63 0.82 1.02 1.32 1.64 2.38 0.62 0.79 0.98 1.26 1.58 2.28

Note: Published prices are based on market value at time of printing and are subject to change due to

Nickel surcharges, Chromium and precious-metal market fluctuations.

H-22

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