NC11LV/1.2379/X153CrMoV12

COLD WORK TOOL STEEL

NORM: ISO 4957

APPLICATION:

The same usage as NC11 steel. Steel susceptible to the tools which require ductile core; such as cutting, punching stamping tools, pull broaches, , mills, shear blades reamers, thread rolling dies, cold extrusion dies rolls for rolling and striking, cutters for nail production, drawing and bending tools, anvils for scythe forging, fine cutting tools, marble, flanging and strengthening tools, moulds for abrasive polymers.

MECHANICAL PROPERTIES:

Hardness after	Tempering ºC	Symbol	Value
Soft annealing	–	HB	≤255
Quenching with 1020 ºC in the air	–	HRC	64
Quenching with 1020 ºC in the air and tempering	180	HRC	≥61
	200	HRC	62
	250	HRC	61
	350	HRC	59
	400	HRC	59
	450	HRC	59.5
	500	HRC	59.5
	550	HRC	57

PHYSICAL PROPERTIES:

Property	Unit	Value
Density, ρ	g*cm-3	7.65
Thermal expansion, α20-100ºC)	K-1	10.2*10-6
Thermal conductivity, λ20ºC)	W*m-1*K-1	17

Technological treatment processes:

Technological treatment processes			Possible application	Temperature, °C
Hot forming	Forging		+	1050-850
	Rolling		+	1050-850
Treatment	Heat treatment	Quenching	+	980-1030
		Tempering	+	170-550
	Precipitation strengthening	Supersaturation	–	–
		Ageing	–	–
	Annealing	Soft annealing	+	820-860
		Stress relieving	+	600-700
Thermochemical treatment	Nitriding		+	470-550
	Other		–	–

INTERNATIONAL STEEL GRADES: