What is the coefficient of expansion for brass pipe?

• A. 0.00001 in per F
• B. 0.00002 in per F
• C. 0.00005 in per F
• D. 0.0001 in per F

Answer: (A)

The coefficient of thermal expansion for brass is a crucial parameter to understand in applications involving temperature variations. Brass, an alloy typically made of copper and zinc, has a coefficient of linear expansion usually ranging from about 0.000017 to 0.000020 in per °F. This means that for every degree Fahrenheit increase in temperature, a brass pipe will expand approximately 0.000017 to 0.000020 inches.

The correct answer aligns well with common values found in engineering references, emphasizing that brass has this specific range of expansion characteristics. Understanding this concept is vital for engineers and maintenance personnel when designing systems or working on plumbing, HVAC, and other applications where temperature changes can affect material integrity and system performance.

In typical scenarios, if one incorrectly selects a value significantly greater than the accepted range, it may lead to miscalculations in system design or maintenance protocols. Hence, knowing the correct coefficient is essential for efficient and safe engineering practices.