different types of metal for knives
Stainless Steel Blades. The stainless steel blade is one of the most popular for knives because of its durability and resistance to corrosion. Stainless steel is a metal alloy generally made out of at least 11% chromium, iron, nickel, molybdenum and carbon.
Ceramic blades are less common than the previous knife types and are mostly found in kitchen cutlery and pocket knives. The advantage of ceramic, which is a non-metallic solid, is its complete resistance to corrosion, extremely hard blade and ability to maintain sharpness for long time periods.
Titanium blades tend to be softer and not as sharp as other types, so they're sometimes coated with other material. The non-magnetic and durable properties of titanium makes these blades popular with diving knives, pocket knives and even bomb-defusing knives.