WZ 25.52.0—Heat treatment of metals

Where 25.52.0 sits

1. C Manufacturing
2. 25 Manufacture of fabricated metal products, except machinery and equipment
3. 25.5 Treatment and coating of metals; machining
4. 25.52 Heat treatment of metals
5. 25.52.0 Heat treatment of metals

What 25.52.0 includes

• General activities for the heat treatment of metals
• Thermomechanical heat treatment of metals (e.g. preheating, annealing, hardening, tempering, quenching, deepfreezing of metal)
• Thermochemical heat treatment of metals (e.g. carburizing, carbonitriding, nitrocarburizing, nitriding, oxidizing, sulfidating, boronizing)

25.52.0 in other systems