Spring steel round bar is suitable for a wide variety of spring applications including flat springs, clutches, knives, doctor blades, saw blades, agricultural tools, wood cutting saws, shims, knives, blades, shims, washers, masonry tools. When heat treating EN75 temperatures, including the rate of heating, cooling and soaking times, etc. will vary due to factors such as the shape and size of each component. Other considerations during the heat treatment process include the type of furnace, quenching medium, and workpiece transfer facilities. Please consult your heat treatment provider for full guidance on the heat treatment of spring steels.
EN75 is a manganese spring steel. That is to say, it is a steel with a high carbon content, traces of manganese that affect the metal’s properties, and that it is generally used for springs (such as the suspension springs on old cars). It is suitable for oil hardening and tempering. When used in the oil hardened and tempered condition EN75 offers excellent spring characteristics. EN75 is commonly used in the automotive industries for the manufacture and repair of leaf springs.
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