Acciai per utensili (Discorso generale)
A freezing treatment - may be used between the first and second tempers. Freezing treatments help to attain maximum hardenability and must always be
Acciai per utensili (Discorso generale)
Note: avoid tempering temperatures higher than 200°C because the steel will loose to much of its potential and between 200 and 300°C the is a area of
Acciai per utensili (Discorso generale)
You end up between 64 and 62HRC
Acciai per utensili (Discorso generale)
The grade itself is a hypereutectic steel and with the carbon content of around 1% capable to deliver 66HRC easily, after the quench.
Acciai per utensili (Discorso generale)
Flextest: Check sharpened edge with flex test in case it fails add 10°C to the tempering temperature and try flex test again after 1 h tempering
Acciai per utensili (Discorso generale)
lowest standard for cleanliness (sulphur, phosphorus), impurities (slag) and segregation (e.g. carbides).
Acciai per utensili (Discorso generale)
Note: Properties shown throughout this data sheet are typical values. Normal variations in chemistry, size and heat treat conditions may cause
Acciai per utensili (Discorso generale)
Iron and Steel Institute) 440 e AISI 420", in altre parole gli acciai inossidabili martensitici, che contengono almeno il 12 di cromo, le cui
Accademia della crusca
