High cost: Stainless steel is more expensive than carbon steel and many other common metals, which increases material and production costs for large-scale applications.
Poor thermal and electrical conductivity: Its thermal conductivity is about 1/3 that of carbon steel, and electrical conductivity is much lower than copper or aluminum, limiting its use in heat transfer or electrical conduction scenarios.
Difficult machinability: Austenitic stainless steels (e.g., 304, 316) have high toughness and work hardening tendencies, requiring specialized tools and processes that increase machining time and difficulty.
3.What are the advantages of stainless steel?
Excellent corrosion resistance: It contains chromium (at least 10.5%), which forms a dense, stable chromium oxide film on the surface to resist rust and corrosion in water, air, and many chemical environments.
High strength and durability: It maintains good mechanical properties at both room temperature and extreme temperatures (high or low), with long service life and reduced maintenance needs.
Aesthetic appeal and easy cleaning: Its smooth surface has a modern appearance, and it is non-porous, making it easy to clean and sanitize-ideal for food processing, medical equipment, and architectural decorations.
