(1) The processing temperature is low, the time is short, and the deformation of the workpiece is small.
(2) Regardless of the steel type, carbon steel, low alloy steel, tool and die steel, stainless steel, cast iron and iron-based powder unmetallurgical materials can be subjected to soft nitriding treatment. The surface hardness of the workpiece after soft nitriding is related to the nitriding process and material.
(3) It can significantly improve the fatigue strength, wear resistance and corrosion resistance of the workpiece. It also has anti-scratch and anti-seize properties under dry friction conditions.
(4) Since there is no brittle phase in the soft nitrided layer, the nitrided layer has a certain toughness and is not easy to peel off.

Therefore, in current production, soft nitrogen treatment has been widely used in the treatment of wear-resistant workpieces such as molds, measuring tools, cutting tools (such as high-speed steel cutting tools), crankshafts, gears, cylinder liners, and mechanical structural parts.