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Carbon steel annealing

carbon steel annealing
carbon steel annealing
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Treated material
steel, copper, brass, carbon steel
military, automotive, for the aerospace industry, for renewable energy, for the nuclear industry, for aeronautics, medical, for the food industry, agriculture, chemistry, for railway, for telecommunications, for the construction industry, for the maritime sector
OHSAS 18001, ISO 9001, ISO 14001, ISO/TS 16949
Production method
small series


Soft annealing is a high temperature heat treatment process performed around A1. As the name suggests the aim of the process is to make a material as soft as possible. After soft annealing the material will have a soft and easy to machine structure. Benefits Steels with higher carbon content, and most high-alloy steels, which are allowed to air cool after hot working, such as forging or hot rolling, are usually hard to machine. Soft annealing reduces the hardness and makes the material easier to machine. Soft annealing of low carbon steels < 0,35% C will normally result in a structure too soft and sticky for cutting operations. The risk of hardening cracks during re-hardening of quenched and tempered steel can be reduced by soft annealing prior to the hardening and tempering process. Application & materials Soft annealing can be performed on steel as well as on copper and brass alloys. Soft annealing is normally performed on steels with a high carbon content and on tool steels to provide a softer and easier to machine structure. During cold forming of copper and brass components, the material will become harder. The greater the cold forming is, the harder the material will become. The effect of cold forming can be eliminated by soft annealing. The hardness obtained after soft annealing is dependent on steel type or the type of alloy. Materials typically soft annealed: -Steel 170-300 HB -Copper 40-70 HV -Brass 50-100 HV Process details During soft annealing of a pearlitic steel structure the cementite lamellae will spheroidise creating small round cementite particles in a soft ferritic matrix.


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