NW1/1.2210/120W4 - akrostal

Wood and rubber knives. Screw taps and circular saws for cold metal cutting. Engraving tools and coining punches.

C	Mn	Si	P	S	Cr	Ni	Mo	W	V	Co
1,10-1,25	0,15-0,45	0,15-0,40	Max 0,030	Max 0,030	-	-	-	1,10-1,50	-	-

Hardness after	Tempering ºC	Unit	Value
Softening	–	HB	229
Quenching with 790 ºC in water	–	HRC	62
Quenching with 790 ºC in water and tempering	180	HRC	60

Technological treatment processes			Possible application	Temperature, °C
Forming processes				1000-800
Heat treatment	Thermal hardening	Quenching (water)		780-800
	Thermal hardening	Tempering		220-320
	Precipitation hardening	Supersaturation		–
	Precipitation hardening	Ageing		–
	Softening	Above A_c1		770-790
	Softening	Below A_c1		690-710
Thermochemical treatment	Nitriding			–
Thermochemical treatment	Other			–