[Ants80]

Forging

• Heat to 850°C - 1250°C (1562°F - 2282°F)
  
  
• Hold until the temperature is uniform
  
  
• Cool in furnace
  

Annealing

• Heat to 800°C - 850°C (1472°F - 1562°F)
  
  
• Hold until the temperature is uniform
  
  
• Cool in furnace.
  

Normalizing

• Heat to 870°C - 920°C (1598°F-1688°F)
  
  
• Hold until the temperature is uniform
  
  
• Soak for 10 - 15 minutes
  
  
• Cool in still air
  

Stress Relieving

• Heat to 550°C - 660°C (1022°F - 1220°F)
  
  
• Hold until the temperature is uniform
  
  
• Soak for 1 hour per 25mm of section
  
  
• Cool in still air
  

Hardening

• Heat to 820°C - 850°C (1508°F - 1562°F)
  
  
• Hold until the temperature is uniform
  
  
• Soak for 10 - 15 minutes per 25mm of section
  
  
• Quench in water or brine
  

Tempering

• Re-heat to 400°C - 650°C (752°F - 1202°F ) as required
  
  
• Hold until the temperature is uniform
  
  
• Soak for 1 hour per 25mm of section
  
  
• Cool in still air