SPECIFICATIONS:

Gage Grid: .......................Fe Cr Al Alloy (.001") .003mm diameter round wire
Leads: ..............................Fe Cr Al Alloy (.003") .008mm diameter round wire
with “Z” configuration flattened to (.0015") .004 mm
in grid area
Carrier: ............................Fiberglass reinforced Teflon tape carrier with silicone
adhesive (shelf life of grid carrier [Figure 2] is 9 months)
Resistance: ......................120.0 ohms ± 2.0 ohms at 20°C (68°F)
Gage Factor: ...................2.4 nominal at 20°C (68°F)
Gage Current: .................30 Milliamperes, max.
Temperature Range: ......Cryogenic to 850°C (1560°F)
Weldable Gage ONLY:
Shim Material: ................Hastelloy X
Bonding Matrix: .............Alumina
Shelf Life: ........................Unlimit

Density: ............................................................. 7.1 Mg/m3 (0.256 lb./in3)
Chemical Analysis, Approx.: ....................... 72 Fe 22.5 Cr 5.5 Al
Resistivity @ 20°C (68°F): ............................ 875, ohms - cmf
Max. Operating Temperature: ................... 1375°C (2500°F)
Melting Point, Approx.: ................................ 1510°C (2750°F)
Temperature Factor,
Resistant Max. Temp.: ................................... 1.044
Thermal Expansion, ppm/°F: ..................... 20 - 250°C = 6.1 (68 - 482°F)
20 - 500°C = 6.9 (68 - 932°F)
20 - 750°C = 7.7 (68 - 1382°F)
20 - 1000°C = 8.3 (68 - 1832°F)
Gage Factor K @ 20°C (68°F): .................... 2.3 to 2.6
Gage Factor vs. Temperature
Coefficient:................................ -5.73 x 10-4/°C
Tensile Strength, PSI: .................................... 140,000 (hard), 92,000 (soft)
Tensile Strength, MPa: .................................. 965 (hard), 690 (soft)
Elongation, % (Soft): ..................................... 22%
Magnetic: ......................................................... Yes, below 540°C (1000°F)
Thermoelectric Potential vs. Cu: ............... -2.6μV/°C (0-100°C)

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