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Compound Bar Manufacturer,Supplier and Exporter in India

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.

ProductCompound Bar
SKUJA-PLE-4158
StripBimetal strip, 150 x 15 mm
Strip thickness1 mm
HandleWooden
Overall length270 mm (approx.)
PurposeShowing 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.

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

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.

Last updated: September 2026

   

Office Address

Jain Scientific Suppliers
2475-84, Hargolal Road,
Ambala Cantt, Haryana, India

[email protected]

+91-85699-09696

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