HBWAK Series gages are constructed of self-temperature compensated K alloy wire, and bonded to a Hastelloy® X shim. Standard gages are compensated for mild steel (6ppm/°F).
K alloy is a highly corrosion resistant alloy with superior properties. Many of our customers utilize K-Alloy gages for nuclear and fossil fuel applications as well as renewable energy projects, where harsh environments cause corrosion.
Maximum operating temperature at sensor: 650°F (343°C)
Strain Type: Static
Gage Resistance (nominal): 120 Ohms
Gage Factor (nominal): 2.0
Maximum operating temperature at cable:
(FG) Fiberglass Insulated – 900°F (482°C)
(MG) Mineral Insulated/Inconel Jacket – 1800°F (980°C)
(CB) Ceramic Braid Jacket – 1800°F (980°C)

Part Number
Max. Temp
Gage Length
Instrumentation Cable
HBWAK-12-250-6-MG
Data Sheet (70-706)
650°F/sensor
1800°F/cable
.250″
Mineral Insulated/Inconel Jacket
HBWAK-35-250-6-MG
Data Sheet (70-708)
650°F/sensor
1800°F/cable
.250″
Mineral Insulated/Inconel Jacket
HBWAKR-12-250-6-MG
Data Sheet (70-713)
650°F/sensor
1800°F/cable
.250″
Mineral Insulated/Inconel Jacket