Expendable Thermocouple

Product Introduction

Blast-furnace Thermocouple is used to measure the temperature of molten steel and high-temperature molten metals and is a one-time consumable thermocouple. Its working principle is to measure the temperature difference generated at both ends of the thermocouple and the high molten metal temperature based on the thermoelectric effect of the metal. This galvanic is characterized by high measurement accuracy, fast reaction, lightweight structure and easy to use.

The Consumable Thermocouple is a high-temperature, single-use temperature sensing device designed for rapid and accurate temperature measurement in molten metal environments. Widely used in steel mills, foundries, and metal casting operations, it delivers reliable performance and precise readings during critical thermal processes. This expendable probe is designed to withstand extreme heat while maintaining stability and accuracy for the short duration of immersion.

Product performance and features:

1. Accurate temperature measurement and high accuracy. Error range: ±3℃

2. Fast response speed, short measurement time, convenient and safe operation.

3. Production using International Practical Temperature Standards (IPTS) 68 and (ITS) 90, it is compatible with the commonly used instruments and systems on the market and interchangeable.

4. The product types are complete, and customers can choose from tungsten rhenium (Wre3/25), R type (Pt/Rh13-Pt), S type (Pt/Rh10-Pt), and B type (Pt/Rh30-Pt/Rh6).

Technical characteristics and specifications

Product Details

Thermocouple Types: Type S, R, B (Platinum-based)

Tip Material: Platinum-rhodium alloy junction with quartz or ceramic protection tube

Sheath Options: Paper tube, aluminum lance, or cardboard stick

Temperature Range: Up to 1800°C (3272°F)

Response Time: ≤ 5 seconds

Length Options: 300mm – 1800mm (customizable)

Accuracy: ±0.5% of reading

Usage: Single-use; typically lasts for one immersion

Product Features

Fast and Accurate: Rapid response time with high temperature precision

Single-Use Design: Prevents contamination and ensures fresh, calibrated readings

High-Temperature Resistant: Operates reliably in molten steel, iron, or aluminum

Safe to Use: Insulated lance system ensures operator safety

Universal Compatibility: Fits most immersion lance systems and digital readout units

Product Advantages

Cost-Effective: No need for recalibration or maintenance; use and discard

Reduces Downtime: Quick immersion means low  delay in the production process

Reliable Performance: Built to deliver stable readings even in harsh molten conditions

Customizable: Available in various lengths, tip types, and mounting options

Operator-Friendly: Lightweight and easy to handle during high-temperature operations

Applications

Steelmaking: Monitoring molten steel temperature during tapping and casting

Foundries: Temperature control in iron, copper, and aluminum casting

Metal Refining: Thermal profiling in ladles, tundishes, and crucibles

Continuous Casting: Inline temperature monitoring for quality assurance

Laboratory Testing: Thermal trials involving high-temperature molten materials

FAQ

Q1: How many times can a consumable thermocouple be used?

A1: It is designed for single-use only, typically one immersion in molten metal.

Q2: What thermocouple types are available?

A2: We offer Type S, R, and B, which are suitable for high-temperature molten metals.

Q3: How fast does it measure temperature?

A3: It provides readings within 3 to 5 seconds of immersion.

Q4: Can it be customized for different applications?

A4: Yes. We offer various lengths, protection tubes, and connector types upon request.

Q5: Is it compatible with existing immersion lances?

A5: Yes, our consumable thermocouples are  compatible with most standard immersion systems universally.