Compound Bar, Set of 4 Manufacturer,Supplier and Exporter in India

Product Code : SCL-PLE-11519

Scientifc Equipment Compound Bar, Set of 4 is an educational physics laboratory apparatus designed to demonstrate thermal expansion, unequal expansion of different metals, bending due to heating, bimetallic strip action, and practical applications of expansion in temperature control devices. It is suitable for school science laboratories, college physics labs, STEM classrooms, heat practicals, and teacher-led demonstrations.

This set helps students understand that different materials expand by different amounts when heated. When two different metals are joined together to form a compound bar, heating causes unequal expansion, making the bar bend toward the metal with lower expansion. This provides a clear and practical demonstration of thermal expansion and bimetallic action.

Product Description

The Compound Bar, Set of 4 by Scientifc Equipment is a practical heat and thermodynamics teaching aid used for demonstrating the effect of temperature on bonded metal strips. The set generally includes four compound bars made from paired metal strips such as brass, iron, steel, copper, aluminum, or other suitable metals as per supplied model configuration.

During the experiment, a compound bar is heated gently using a safe laboratory heat source. Because the two joined metals have different coefficients of linear expansion, the bar bends when heated and may return toward its original shape when cooled. This experiment helps students understand the working principle of thermostats, fire alarms, temperature switches, and bimetallic devices.

Scientifc Equipment Compound Bar, Set of 4 is useful for teaching thermal expansion, coefficient of expansion, heat effects on solids, bimetallic strip behaviour, temperature control applications, and STEM-based practical science learning.

Key Features

• Brand: Scientifc Equipment
• Set of 4 Compound Bars: Supplied as a useful comparison set for thermal expansion demonstrations.
• Educational Heat Apparatus: Designed for demonstrating unequal expansion of different metals.
• Bimetallic Action Study: Helps students understand bending caused by different expansion rates.
• Clear Visual Demonstration: Shows visible bending when heated under controlled laboratory conditions.
• STEM Classroom Suitable: Ideal for physics, heat, thermodynamics, and material science lessons.
• Real-Life Application Learning: Helps explain thermostats, thermal switches, fire alarms, and temperature control devices.
• Reusable Laboratory Set: Suitable for repeated supervised classroom and laboratory use.

Product Specifications

How to Use Compound Bar, Set of 4

1. Place the Compound Bar Set on a clean, dry, stable, and heat-resistant laboratory surface.
2. Select one compound bar from the set according to the experiment requirement.
3. Check that the bar is clean, straight, and free from cracks, sharp edges, or damage.
4. Hold the compound bar using suitable tongs or fix it securely with a clamp stand.
5. Heat the bar gently and evenly using a safe laboratory heat source under teacher supervision.
6. Observe the direction and amount of bending as the bar becomes warm.
7. Note which side bends inward and relate it to the different expansion rates of the metals.
8. Remove the heat source and allow the bar to cool naturally on a heat-resistant surface.
9. Observe whether the bar returns toward its original position after cooling.
10. Repeat the experiment with other bars in the set for comparison.
11. Record observations, diagrams, material combinations, bending direction, and conclusions in the practical notebook.
12. After complete cooling, clean and store all bars safely in the supplied box or laboratory cabinet.

Educational Applications

• Demonstrating thermal expansion of solids
• Studying unequal expansion of different metals
• Explaining bimetallic strip action
• Comparing bending behaviour of different compound bars
• Understanding coefficient of linear expansion in practical form
• Explaining real-life uses of thermostats and thermal switches
• Introducing material selection in heat-sensitive devices
• Supporting heat transfer and thermodynamics practicals
• Helping students connect thermal expansion theory with visible classroom observation

Why Choose Scientifc Equipment Compound Bar, Set of 4?

Scientifc Equipment provides practical educational science apparatus for schools, colleges, laboratories, and STEM learning environments. The Compound Bar, Set of 4 helps students understand thermal expansion and bimetallic action through direct observation, comparison, and hands-on practical learning.

• Suitable for school and college physics laboratories
• Useful for heat, expansion, material science, and thermodynamics experiments
• Set of 4 supports comparison of different compound bars
• Clear bending action makes the concept easy to understand
• Compatible with common heating and clamping laboratory accessories
• Reusable set suitable for repeated supervised practical work
• Suitable for institutional procurement and science lab setup

E-E-A-T Product Trust Notes

• Educational Experience: Designed for repeated classroom and laboratory use in heat, expansion, and material property demonstrations.
• Practical Expertise: Supports standard science concepts such as thermal expansion, bimetallic strip action, coefficient of expansion, and heat effect on solids.
• Authoritative Lab Use: Suitable for schools, colleges, STEM labs, physics labs, thermodynamics labs, and general science laboratories.
• Trustworthy Learning: Encourages supervised, observation-based experiments with clear visual outcomes and real-life application understanding.

Care and Safety Instructions

• Use the Compound Bar Set only under teacher or laboratory instructor supervision.
• Handle heated bars only with tongs, clamps, or heat-resistant gloves.
• Do not touch the bar immediately after heating, as it may remain hot for some time.
• Use a heat-resistant mat or safe laboratory surface during heating experiments.
• Do not overheat the bar or expose it to excessive flame for long periods.
• Keep the apparatus away from flammable materials during heating.
• Do not bend, twist, hammer, or force the bars manually.
• Do not use damaged, cracked, rusted, or sharply edged bars in student practicals.
• Allow all bars to cool completely before storage.
• Store the set in a clean and dry laboratory cabinet after use.

SEO Title

Compound Bar Set of 4 for Thermal Expansion Lab – Scientifc Equipment

Meta Description

Buy Scientifc Equipment Compound Bar, Set of 4 for school physics labs, thermal expansion demonstrations, bimetallic strip experiments, unequal expansion of metals, heat practicals, and STEM laboratory learning.

SEO Keywords

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FAQ – Compound Bar, Set of 4

1. What is a Compound Bar, Set of 4 used for?

It is used to demonstrate thermal expansion, unequal expansion of different metals, bending due to heating, and bimetallic strip action.

2. Is this set suitable for school and college laboratories?

Yes, Scientifc Equipment Compound Bar, Set of 4 is suitable for school science labs, college physics labs, STEM classrooms, heat practicals, and supervised demonstrations.

3. What is a compound bar?

A compound bar is a bar made by joining two different metal strips together so that their unequal expansion can be observed when heated.

4. Why does a compound bar bend when heated?

It bends because the two metals expand by different amounts. The metal with greater expansion becomes longer, causing the joined bar to curve.

5. Which principle does this apparatus demonstrate?

It demonstrates thermal expansion of solids and the working principle of bimetallic strips used in temperature control devices.

6. Can this set explain thermostats?

Yes, it helps explain how bimetallic strips bend with temperature changes and operate switches in thermostats, fire alarms, and temperature controllers.

7. Does the Compound Bar Set require electricity?

No, the set itself does not require electricity. A safe heat source is required for the heating demonstration.

8. What accessories are useful with this set?

Useful accessories include a Bunsen burner, spirit lamp, hot plate, clamp stand, tongs, heat-resistant mat, thermometer, worksheet, and practical notebook.

9. Can students use the set directly?

Students can use the set under teacher or laboratory instructor supervision after learning correct heating, handling, and safety methods.

10. Why are different metal combinations used?

Different metal combinations help students compare how materials expand at different rates and how this affects bending direction and amount.

11. What safety precautions should be followed?

Use tongs or clamps, avoid touching hot bars, keep away from flammable materials, do not overheat, and perform the experiment only under supervision.

12. How should the Compound Bar Set be maintained?

Keep the bars clean and dry, protect them from rust and rough handling, avoid forced bending, and store them safely after they cool completely.

13. Is this product useful for STEM education?

Yes, it supports STEM education by helping students observe, compare, and understand thermal expansion, bimetallic action, material behaviour, and temperature control applications through hands-on experiments.

Conclusion

Scientifc Equipment Compound Bar, Set of 4 is a valuable educational physics apparatus for teaching thermal expansion, unequal expansion of metals, bimetallic strip action, heat effect on solids, and real-life temperature control applications. Its clear visual demonstration, comparison-based learning value, and classroom-friendly use make it suitable for school laboratories, college physics labs, STEM classrooms, heat practicals, science projects, and institutional science lab setups.