Bourdon tubes are generally made of:



Explanation:



The correct answer for the material used to make Bourdon tubes is option 'B', which is Bronze.

What are Bourdon tubes?

Bourdon tubes are commonly used mechanical pressure measuring devices. They are C-shaped tubes that are designed to deform under pressure. The deformation of the tube is then converted into a rotational motion, which is used to indicate the pressure on a dial or gauge.

Why are Bourdon tubes made of bronze?

There are several reasons why Bourdon tubes are typically made of bronze:

Strength and Durability:
Bronze is a strong and durable material, making it suitable for withstanding high pressures. It has good tensile strength and can resist deformation under pressure. This is essential for accurate pressure measurement.

Corrosion Resistance:
Bronze has excellent corrosion resistance, which is important when the Bourdon tube is exposed to various fluids or environments. It can withstand the corrosive effects of gases, liquids, and other substances, ensuring the longevity of the Bourdon tube.

Thermal Stability:
Bronze has good thermal stability, meaning it can withstand a wide range of temperatures without significant deformation or damage. This is important as Bourdon tubes may be exposed to high or low temperatures in different applications.

Machinability:
Bronze is relatively easy to machine, allowing for the precise fabrication of Bourdon tubes. It can be formed into the desired shape and size, ensuring the accuracy and reliability of the pressure measurement.

Cost-Effectiveness:
Bronze is an affordable material compared to other options like stainless steel or exotic alloys. This makes it a cost-effective choice for manufacturing Bourdon tubes.

Conclusion:

In conclusion, Bourdon tubes are generally made of bronze due to its strength, durability, corrosion resistance, thermal stability, machinability, and cost-effectiveness. These characteristics make bronze an ideal material for accurate pressure measurement in various applications.