TEMTS0350 - Tempil 350°F Temperature Indicator Crayon

Essential Preheat and Interpass Temperature Control

In the world of professional welding, temperature control is not just a suggestion—it is often a code requirement. The Tempilstik 350°F (177°C) is an indispensable tool for welders who need to verify preheat and interpass temperatures to prevent cracking, distortion, and metallurgical defects. Designed to meet the rigorous demands of AWS D1.1, ASME Section I, III, and VIII, and ANSI/ASME Code B31.1 and B31.3, this temperature-indicating stick ensures your welds comply with the highest industry standards.

Using the Tempilstik 350°F is incredibly straightforward, allowing welders to focus on the arc rather than fiddling with complex gauges. Simply stroke the workpiece during heating; the dry mark will turn into a liquid smear the moment the steel reaches 350°F. This specific temperature rating is commonly used for preheating medium-carbon steels, low-alloy steels, and heavy sections to slow the cooling rate and prevent the formation of brittle microstructures. It is also frequently used to monitor interpass temperatures to ensure the material does not exceed maximum heat input limits.

Rugged Design for the Shop Floor

Welding shops are tough environments. Electronic infrared thermometers can give false readings due to emissivity issues on shiny metals or interference from the welding arc itself. The Tempilstik is immune to these problems. It provides a direct contact measurement that is accurate to within +/- 1%. The stick is housed in a protective holder (sold separately or included depending on the pack) that prevents breakage and allows for easy handling even with heavy welding gloves.

Why Welders Choose Tempilstik

• Code Compliance: Helps satisfy preheat requirements for critical structural and pipe welds.
• Arc Safe: Unaffected by electrical noise or radiation from the welding arc.
• User Friendly: No buttons, no batteries, just mark and melt.
• Cost-Effective: Hundreds of readings from a single stick make it a high-value consumable.

Don't guess when it comes to heat control. Verify your 350°F requirements with the industry-standard Tempilstik and ensure the integrity of every weld you lay down.