1.2083/X40Cr14

COLD WORK TOOL STEEL

NORM: ISO 4957

APPLICATION:

Steel susceptible to tools and inserts for corrosive plastics and polymers, mould and pressure tools, die casting for the alloys of light non-ferrous metals.

MECHANICAL PROPERTIES:

Hardness after	Tempering ºC	Symbol	Value
Soft annealing	–	HB	≤241
Toughening		HB	300
Quenching with 1010 ºC in oil	–	HRC	54
Quenching with 1010 ºC in oil and tempering (cooling during quenching can also be performed either in the air or gradually in the salt bath at 500–550 ºC and then cooled in the air)	180	HRC	≥52
	200	HRC	53
	250	HRC	52.5
	450	HRC	54
	500	HRC	52.5
	550	HRC	49.5
	600	HRC	46

PHYSICAL PROPERTIES:

Property	Unit	Value
Density, ρ	g*cm-3	7.60
Thermal expansion, α20-100ºC)	K-1	10.6*10-6
Thermal conductivity, λ20ºC)	W*m-1*K-1	29

Technological treatment processes:

Technological treatment processes			Possible application	Temperature, °C
Hot forming	Forging		+	1100-800
	Rolling		+	1100-800
Treatment	Heat treatment	Quenching	+	1000-1050
		Tempering	+	150-300 400-600
	Precipitation strengthening	Supersaturation	–	–
		Ageing	–	–
	Annealing	Soft annealing	+	750-800
		Stress relieving	+	600-700
Thermochemical treatment	Nitriding		+	470-520
	Other		–	–

INTERNATIONAL STEEL GRADES: