BI-metallic Sheet Manufacturer,Supplier and Exporter in India

BI-metallic Sheet (Product Code: SCL-328/062) is a plain square sheet of iron and brass joined together, used to demonstrate the unequal thermal expansion of metals in school physics laboratories. When it is heated, the brass expands more than the iron and the sheet bends, the principle behind thermostats and fire alarms. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India, and supplied as physics lab equipment to schools in India and abroad.

Specifications

What Is the Bimetallic Sheet Used For?

Held with tongs and warmed over a flame, the sheet curls with the brass on the outside of the curve because brass expands more than iron for the same rise in temperature; on cooling it returns towards flat. Students see directly that different metals expand by different amounts, and can link the effect to thermostats, fire alarms and flasher switches that use a bimetallic strip to open or close a contact.

Heat the sheet evenly and briefly, hold it only with tongs or an insulated holder, and let it cool on a heatproof surface. Asking the class to predict the direction of bending before revealing which face is brass turns the demonstration into a quick reasoning exercise.

OEM Manufacturer

Jain Scientific Equipments Private Limited, trading as ScienceLab, makes the BI-metallic Sheet as the OEM at its own licensed factory at Saha, Ambala, Haryana, India. Schools, colleges and importers buy it straight from the manufacturer with the rest of their heat apparatus, and repeat or replacement pieces are handled by the same team; ask us for details. See the ScienceLab company profile.

Related Physics Lab Equipment

Items used with the bimetallic sheet in expansion demonstrations:

• Bunsen Burner — heating the sheet evenly
• Crucible & Beaker Tongs — holding the hot sheet safely
• Metal/Steel Sheet (Rectangular) — a single-metal sheet for comparison
• Wax — showing heat conduction along metal surfaces

Browse all heat apparatus in the Physics Lab category.

Frequently Asked Questions

What metals is the BI-metallic Sheet made of?
The BI-metallic Sheet (SCL-328/062) is made of iron and brass joined in a square, plain sheet. Because the two metals expand by different amounts when heated, the sheet bends visibly, which is the effect students observe.

Which way does the BI-metallic Sheet bend when heated?
When heated, the BI-metallic Sheet bends with the brass on the outside of the curve, because brass expands more than iron for the same temperature rise. On cooling it straightens again, so the demonstration can be repeated.

Where is the bimetallic principle used?
The effect shown by the BI-metallic Sheet is used in thermostats, fire alarms, electric iron cut-outs and flasher switches, where a bimetallic strip bends to open or close an electrical contact as the temperature changes.

How do I heat the BI-metallic Sheet safely?
Hold the BI-metallic Sheet with tongs or an insulated holder and heat it evenly over a burner flame for a short time. Let it cool on a heatproof surface before handling, since both metals stay hot after the flame is removed.

Who manufactures the BI-metallic Sheet?
The BI-metallic Sheet is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), the OEM, at its own licensed factory at Saha, Ambala, Haryana, India. Schools, colleges and importers order it directly from the manufacturer, usually together with other heat apparatus.

What size is the BI-metallic Sheet?
The dimensions of the BI-metallic Sheet are not listed on this page; it is described as square with a plain pattern. Ask through the ScienceLab contact page for the size and thickness currently made before ordering class quantities.

Request a Quote

Request a BI-metallic Sheet quotation through the ScienceLab contact page or add it to the enquiry cart. Quotations come straight from the manufacturer.

Last updated: 24 September 2026