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)
Carbon V chemical composition is equivalent to the SAE standard for construction steels 50 100 (UNS G50986 or the German grade 1.3501)
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)
The 50100 "Carbon V" is rated as a construction steel, means unlike its high quality brothers out of ball bearing construction e.g. 52100, it has the
Acciai per utensili (Discorso generale)
So the treatment after machining would be:
Acciai per utensili (Discorso generale)
Protect surface from decarburisation at all steps of the process!!
Acciai per utensili (Discorso generale)
corrosion resistance. Size Change: +0.05 to +0.10% when fully martensitic. The presence of retained austenite may reduce the net growth.
Acciai per utensili (Discorso generale)
Hardness check: file should be sliding over the edge wo getting grip
Acciai per utensili (Discorso generale)
2nd Temper: 150°C-200°C depending on the hardness you want
Acciai per utensili (Discorso generale)
Now since you didn't forge or fire weld it, meaning you do stock removal only, you can expect the steel to be annealed correctly.
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)
A freezing treatment - may be used between the first and second tempers. Freezing treatments help to attain maximum hardenability and must always be
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