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TEMTS0400 - Tempil Tempilstik 400°F (204°C) Temperature Indicating Crayon

Packaging: 1 per each
$33.28/ea $27.73/1 per each only $27.73/eaSave 17%

In stock

OVERVIEW

Precise Temperature Indication for Industrial Applications

The Tempil Tempilstik 400°F (204°C) is the industry standard for surface temperature measurement, offering a simple, rugged, and reliable solution for welders, metalworkers, and inspectors. For over 80 years, Tempilstik has been the go-to tool for verifying critical temperatures in fabrication environments where precision is paramount. Unlike electronic sensors that can drift or require calibration, the Tempilstik relies on the immutable laws of physics—the melting point of a calibrated chemical compound—to provide an accuracy of +/- 1%.

This specific stick is formulated to melt at exactly 400°F (204°C). It is widely used to ensure compliance with welding procedures (WPS) regarding preheat and interpass temperatures. Proper thermal management is essential to prevent cracking, warping, and metallurgical defects in sensitive alloys. The Tempilstik allows operators to quickly verify that the base material has reached the required temperature before striking an arc, or to monitor heat input during multi-pass welding.

The product comes in a durable, slip-resistant metal holder that protects the stick from breakage and allows for easy handling, even with heavy welding gloves. The holder also features a pocket clip, ensuring the tool is always within reach. Each batch is laboratory tested and traceable to NIST standards, providing the documentation and confidence needed for code-compliant work in sectors such as construction, petrochemical, and power generation.

Key Benefits

  • Reliability: No batteries to fail or electronics to calibrate.
  • Visibility: The distinct change from a dry, chalky mark to a glossy liquid is easily spotted even in low-light shop conditions.
  • Efficiency: Allows for rapid checks without interrupting workflow significantly.
Additional Information
Temperature Rating:400°F, 204°C
Accuracy:+/- 1%
Product Type:Temperature Indicating Stick
Brand:Tempil
Form:Stick / Crayon
Application:Surface Temperature Measurement, Preheat, Interpass
Certification:NIST Traceable
Packaging Description:1 per each
Temp:400

INCLUDED

  • 1 x Tempilstik 400°F (204°C) Temperature Indicator
  • 1 x Slip-resistant metal holder with pocket clip

APPLICATIONS

  • Welding preheat monitoring
  • Interpass temperature control
  • Post-weld heat treatment (PWHT)
  • Annealing and stress relieving
  • Surface temperature verification on bearings and motors
  • Metal fabrication and forging

FAQ

Stroke the workpiece with the stick during heating. When the chalky mark melts into a glossy liquid, the rated temperature (400°F) has been reached.

The Tempilstik is accurate to within +/- 1% of its rated temperature, making it highly reliable for code-compliant work.

No, the melting point is determined by the chemical formulation and does not drift or require calibration like electronic devices.

Yes, you can make a mark prior to heating. Watch the mark closely; it will change from dull/chalky to glossy/liquid when the temperature is reached.

Yes, Tempilstiks are traceable to NIST standards, and lot numbers are provided for quality control documentation.

The mark will remain liquid. The Tempilstik indicates when the minimum temperature is reached but does not indicate if it has been significantly exceeded (unless you use a higher rated stick to bracket the temperature).

Yes, the Tempilstik comes in a slip-resistant metal holder with a pocket clip.