What is a knife blade made out of?
The blade can be made of various metal combinations: carbon steel, stainless steel, high-carbon stainless steel, titanium or ceramic.
The best benefit of "carbon steel" is that the blade can be very sharp. However, the drawback is that the blade can easily rust and tends to discolor.
“Stainless steel” is a combination of several metals with only a small amount of carbon.
Low-quality stainless steel is not as sharp as high-quality carbon steels, but it has a high resistance against corrosion, and tends to cost less. However, high-quality stainless steel can be sharp as well. Stainless steel needs frequent sharpening to keep a good edge.
“High- Carbon Stainless steel” the best carbon and stainless steels. It is tough, strong, sharp and corrosion-resisting, but it can be very pricey.
"Titanium" is a light, flexible, and durable, material and has good edge retention. However, it can be quite expensive.
“Ceramic” has a reputation of easily chipping and breaking when dropped. Special expertise is needed for sharpening the blade.