Compound Bar
Product Code : JA-PLE-4158
The Compound Bar (SKU JA-PLE-4158) is a bimetallic strip on a wooden handle used to show that different metals expand by different amounts when heated. This compound bar for demonstrating unequal expansion of metals bends visibly when warmed in a flame, because its strip is only 1 mm thick, and JaincoLab supplies it for school heat and thermal expansion lessons.
Specifications
The compound bar has a bimetal strip 150 x 15 mm and 1 mm thick, mounted in a wooden handle, with an overall length of about 270 mm; the thin strip needs very little heat to bend considerably.
| Product | Compound Bar |
| SKU | JA-PLE-4158 |
| Strip | Bimetal strip, 150 x 15 mm |
| Strip thickness | 1 mm |
| Handle | Wooden |
| Overall length | 270 mm (approx.) |
| Purpose | Showing differential expansion of metals |
Applications of the compound bar for demonstrating unequal expansion of metals
When the strip is held in a flame it curves towards the metal that expands less, and it straightens again as it cools; cooling it below room temperature makes it bend the other way, which shows how bimetallic strips work in thermostats and fire alarms.
- Demonstrating that different metals expand by different amounts
- Explaining the working of thermostats, fire alarms and flashers
- Showing reversible bending on heating and cooling
- Heat and thermal expansion lessons in middle and secondary school
Scope of supply and ordering
The listing covers the compound bar: the bimetal strip mounted in its wooden handle. Accessories, spares and quantities are confirmed on the quotation.
Minimum order quantity, lead time and packing are confirmed on each quotation for the number of bars and the delivery destination. JaincoLab supplies heat and expansion apparatus to schools and colleges, bulk orders for education projects and export orders to buyers in Africa, the Middle East and South and South-East Asia.
Frequently asked questions
What are the dimensions of the bimetal strip?
The strip is 150 x 15 mm and 1 mm thick, and the overall length with the handle is about 270 mm.
Why is the strip thin?
At 1 mm thick, the strip needs very little heat to bend considerably.
What does the compound bar demonstrate?
It shows the differential expansion of metals in a bimetallic strip.
Related products
- Bar and Gauge
- Expansion of Liquids Apparatus
- Kit for Heat and Thermometers
- Thermal Conductivity Apparatus
Heat and expansion apparatus is listed in Physics Lab Equipments from JaincoLab, a physics lab equipment manufacturer in India.
Request a quote
To order the Compound Bar, send the quantity and delivery destination through the JaincoLab contact page or email [email protected]. Buying under a laboratory tender? Use our tenders page.
