NW1/1.2210/120W4

COLD WORK TOOL STEEL

NORM: PN-86/H-85023

APPLICATION:

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

MECHANICAL PROPERTIES:

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:

Technological treatment processes			Possible application	Temperature, °C
Forming processes				1000-800
Heat treatment	Thermal hardening	Quenching (water)		780-800
		Tempering		220-320
	Precipitation hardening	Supersaturation		–
		Ageing		–
	Softening	Above Ac1		770-790
		Below Ac1		690-710
Thermochemical treatment	Nitriding			–
	Other			–