Topic: Material Science
The preferred choice of the steel material for Cryogenic application is
- A. Ferrite
- B. Austenitic
- C. Martensite
- D. All the Above
Answer: B. Austenitic
Explanation: Austenitic stainless steels (like 304 or 316) are the preferred choice for cryogenic applications because their FCC (Face-Centered Cubic) crystal structure retains excellent ductility and impact toughness at extremely low temperatures, preventing brittle fracture.