Science, Maths & Technology
Carbonitriding / carburising
...source of carbon (natural gas or propane), and ammonia, which is the source of nitrogen. Times depend on material, gas composition temperature and/or case depth, but can be as low as 1 h, due to small case depths. Quenching as for gas carburising. Variation of the depth of case with time and temperature: Time required Depth of case 870°C 900°C 950°C 960°C 0.4 mm 3.5 3...