

In many cases, this carbon content is great for all-purpose knives and shouldn’t give you too much trouble when it comes to forging.Īdditionally, you’ll need to consider the size of the scrap you’re going to use. This is because the steel used in these scrap items would need a higher percentage of carbon to be able to withstand pushing and pulling, but a low enough carbon content so that it is not brittle enough to fracture outright. When looking through your local junkyard or workshop for scrap, you’ll want to keep an eye out for anything that was regularly put under strain. Overall, the ideal knife will have the right percentage of carbon and other alloys to perform what it was made to do effectively without risking breaking or other damage. However, if there is too much carbon it becomes brittle and you risk fracturing with any impact. In steels with higher carbon content, the metal is going to be harder and stronger because it helps hold the iron atoms in place. When it comes to determining the strength, hardness, and toughness of your knife, the carbon content plays a major role.

For finer knives that emphasize cutting, you’ll want something strong and hard, but it won’t face much impact, so it doesn’t need to be as tough. For hatchets, machetes, and other blades that have to withstand impacts, you want a tougher and stronger metal that won’t fracture. The ideal type of metal for your knife or blade depends on what you plan to use it for. This means that a surprising number of “scrap” metals can be used for knife forging – and bring their stories along with them. Smaller but thick steel can be pounded down to a wider, flatter knife shape with enough work. The good thing about metals (and steel in particular) is that despite whatever form they previously took once they are heated, they can be reshaped, given an edge and more. Any price and availability information displayed on at the time of purchase will apply to the purchase of this product.

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