Answer: A forged knife is made of a single bar of steel, which is heated and then pounded into shape, often by a specially trained craftsman. The alternative is a stamped knife, in which the blade is stamped or cut out from a large sheet of steel, and then the blade is honed and heat-treated for durability.A forged knife is typically heavier by several ounces than a stamped knife.f the handle of a knife has metal rivets, or if you can see the metal along the edge of the handle, that's a good indication that the knife has a tang, which is a sign of quality and durability and helps with balance of the knife. Some stamped knives, though, also have tangs.