Omega Products NI80-012-200 User Manual

Resistance Heating Wire Nickel-Chromium Alloy

80% Nickel /20% Chromium

U Withstands High Temperatures up to 1150°C (2100°F)

U Quick Heating, Long Life U Corrosion Resistant U Used to Make Straight

or Helical Coil Resistance Heaters

U Convenient 15 m (50') and 60 m (200') Spools Available

OMEGA® 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 Ω per circular mil-foot at 20°C (68°F). See table below for multiplication factors to obtain resistance at other temperatures.

Specific Gravity: 8.41 Density: 0.304 lb/in

Shown smaller than actual size.

Melting Point: Approx

1400°C (2550°F)

Nominal Coefficient of Linear Expansion: 0.000017 (10 to 1000°C)

Tensile Strength (lb/in 20°C (68°F): Soft Annealed: 100,000

Nominal Temperature Coefficient of Resistance:

0.00011 Ω/Ω/°C (20 to 500°C)

) at

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 °C 20 93 204 315 427 538 649 760 871 982 1093°C

Temp ° F 68 200 400 600 800 1000 1200 1400 1600 1800 2000°F

Factor 1.000 1.016 1.037 1.054 1.066 1.070 1.064 1.062 1.066 1.072 1.078

To Order Visit omega.com/ni80 for Pricing and Details

Current Temperature Characteristics* °C (°F) Dia. Ω per ft 425 550 650 750 875 1100

AWG mm (1") @ 20°C (68°F) (800) (1000) (1200) (1400) (1600) (2000) Model No.

18 1.0 (0.040) 0.4062 8.32 10.17 12.48 15.11 18.06 24.03 NI80-040-( 20 0.81 (0.032) 0.6348 6.17 7.56 9.24 11.13 13.23 17.57 NI80-032-(†) 22 0.64 (0.0253) 1.015 4.62 5.62 6.85 8.20 9.69 12.85 NI80-025-(†) 24 0.51 (0.0201) 1.609 3.46 4.18 5.06 6.04 7.10 9.40 NI80-020-(†) 26 0.40 (0.0159) 2.571 2.62 3.12 3.76 4.49 5.27 6.90 NI80-015-(†) 28 0.32 (0.0126) 4.094 1.98 2.38 2.84 3.37 3.93 5.09 NI80-012-(†) 30 0.25 (0.010) 6.50 1.50 1.81 2.14 2.53 2.93 3.75 NI80-010-(†)

Showing approximate amperes necessary to produce a given temperature, applying only to a straight wire stretched horizontally in free air.

† Specify desired length in feet: “50” or “200”. Note: This wire is not intended for use in making thermocouple elements. Ordering Example: NI80-032-50 is a 15 m (50') spool of 20 gage bare wire.

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.

†

)

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