Then, use a rounding hammer to beat one of the corners on the end of the hot steel into the shape of a knife point. Note that some stainless steel requires annealing after every forging session. It is an easily movable, propane-fueled single burner furnace that can reach up to 2600F in temperature. It is best for knives that will be subjected to impacts rather than relying on sharpness because it can lose some edge in favor of hardness. No two Damascus knives are alike. Suggested tempering temperatures/time are a guide base on "FULL HARDNESS". I can blow compressed air on a piece of 1095 and it will be definitely harder than it was before I started, but if I temper it at maybe 425, I might get through two sticks of warm butter before it needs to be sharpened. Place one end of the heated steel on an anvil while gripping the other end with forging tongs. C1045 is an example of a hard carbon steel that is commonly used for knife forging, but there are plenty to choose from. Temperatures for Heat Treating Knives Necessary temperatures are determined by the type of steel you work with, so make sure of your own requirements before buying an oven for heat treating knives. Damascus knives boast stylish patterns that metal workers engrave into the blade during the forging process. Anything lower than that and you risk cracking. For example, 440c steel requires the starting forging temperature to be somewhere between 1900 and 2100°F (bright yellow color). The hardening process for bars forged of a combination of 1084 and 15N20 goes as follows: heat the blade to 1,500 degrees in high temperature salt; hold for two to three minutes; quench in preheated (120-degree) oil; and the allow the blade to cool until it … This chart gives you the color of the steel and the corresponding The steel is reheated to high forging temperatures multiple times while reducing its thickness by only small amounts. So grain growth is more likely than grain refinement. In terms of function, it is a good fit for the bending and tempering of metal for a variety of projects. The Friction Forging® is performed on the knife blade in the area that will eventually become the edge. Forging and shaping the steal is done at a bright yellow/orange colour, 1700-2100 fahrenheit. However, with forging of knives the amount of reduction is very small. In fact, each knife is one of a kind and valuable as an expressive work of art. Forge the blade to a point. quenching at temperatures over 800-900 degrees can result in a brittle blade and/or your blade could warp or crack. Tool Steel This gas forge is from Simmond Store – a great brand. The most common aspects of Damascus steel knives that enthusiasts consider ideal are the aesthetics and high performance. 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