



Compound Bar, 2-Metal Riveted, with Wooden Handle
AUD 16.50(Ex GST)
AUD 16.50(Ex GST)
- Compound bar for thermal expansion demonstrations
- Two-metal laminated bar construction as listed
- Brass and iron metals as listed
- Riveted / fastened metal strip design
- Wooden handle supports safer demonstration handling
- Designed to be placed over a flame during experiment
- Different expansion rates cause the bar to bend
- Demonstrates expansion of different metals
- Blade size listed as 3.5 × 20 cm
- Product title references 350 × 20 mm format
- Heat source is required and not included
- Use under appropriate laboratory or educational supervision
- Description
Description
The Compound Bar, 2-Metal Riveted, with Wooden Handle, also known as a bimetallic strip demonstration bar, is designed for showing how different metals expand at different rates when heated. The apparatus consists of a laminated bar made from brass and iron fastened together and mounted in a wooden handle. When the metal strip is placed over a flame, the unequal thermal expansion of the two metals causes the bar to bend. This makes the product useful for demonstrating thermal expansion, comparative expansion of metals, bending of bimetallic strips and the principle behind temperature-sensitive bimetallic devices.
The blade size is listed as 3.5 × 20 cm, while the product title references 350 × 20 mm. Users should confirm the final required size before ordering where exact dimensions are important. This product is suitable for school science laboratories, university teaching laboratories and educational facilities requiring a simple practical tool for heat and expansion demonstrations. Users should confirm the heat source, flame position, heating time, demonstration distance, ventilation and risk assessment before use. The metal strip may become very hot during and after heating. Do not touch heated metal directly, and allow the apparatus to cool before storage or handling by students.
Use suitable eye protection, heat protection and approved laboratory procedures when working with flame, hot metal and heated equipment. This product is intended for laboratory or educational settings only and should be used under appropriate supervision. This item is supplied as the compound bar with wooden handle only. Heat source, burner, matches, lighter, heatproof mat, stand, clamps, PPE and additional heat transfer accessories are not included unless specified separately.
LabChoice Australia supplies Compound Bars and heat transfer demonstration equipment for school science laboratories, university teaching laboratories and educational facilities requiring practical tools for thermal expansion experiments.
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Emma Roberts
10 months ago
We ordered a set of customised BORO 3.3 borosilicate glassware for our teaching labs, and LabChoice Australia exceeded every expectation. From the first consultation to final delivery, their team listened carefully, offered expert advice, and ensured every piece matched our specifications perfectly.
The clarity and precision of the glassware are exceptional, and the quick turnaround made setup effortless. It’s refreshing to work with an Australian supplier who genuinely understands laboratory needs and takes pride in quality craftsmanship. We’ll definitely be returning to LabChoice for future glassware requirements
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11 months ago
Our lab required high-precision BORO 3.3 glassware for analytical testing, and LabChoice Australia delivered outstanding results. The ordering process was simple, communication was clear, and every beaker and flask arrived perfectly calibrated and ready for use.
The quality of the glass is exceptional — resistant to heat, easy to clean, and consistently accurate in measurement. It’s reassuring to know there’s an Australian supplier that combines scientific precision with genuine customer care. I’d recommend LabChoice to any research team looking for dependable labware
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1 year ago
We needed a set of customised borosilicate glassware for a specialised project, and LabChoice Australia delivered exactly what we envisioned. The team worked closely with us from design to production, ensuring every detail met our specifications. The craftsmanship is exceptional, and the turnaround time was impressive. It’s reassuring to know we can rely on them for unique, made-to-order pieces
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1 year ago
LabChoice Australia has completely changed the way we source our lab glassware. The quality is consistently top-notch, and every piece meets the precision we need for reliable results. Their team knows their stuff, answers our questions quickly, and always goes the extra mile to help — they’re more like partners than just a supplier.
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1 year ago
We trust LabChoice Australia because they deliver every time. Their borosilicate glassware is durable, accurate, and perfect for the high-heat work we do. Everything arrives well-packed with clear specs, so there are never surprises. It’s reassuring to deal with a supplier who understands both compliance and the demands of a busy lab































