Markal 86481 Thermomelt Heat Stik Temperature Indicator Marker 175 F 79 C 4-1/2 Inch

Thermomelt Heat Stik from Markal at 700 F (371 C), 4-1/2 inch. Used in welding preheat verification on chrome-moly pipe and high-temperature alloy components.

Thermomelt Heat Stik from Markal at 325 F (163 C), 4-1/2 inch. Marks preheat and interpass temperatures on weld joints in alloy steel fabrication.

Thermomelt Heat Stik from Markal at 400 F (204 C), 4-1/2 inch. Confirms preheat and interpass temperatures during welding of structural and pressure vessel steel.

Thermomelt Heat Stik from Markal at 550 F (288 C), 4-1/2 inch. Verifies preheat reached on high-strength alloy steel weld joints in pipe and pressure vessel work.

Thermomelt Heat Stik from Markal at 350 F (177 C), 4-1/2 inch. Verifies preheat reached on welds in carbon and alloy steel pipe and plate fabrication.