Tool Steel Plastic Mold Steel

Chemical Composition

	C	Si	Mn	P	S	Cr	Mo	V
Typical analysis	0.38	1.05	0.40	0.025	0.003	5.20	1.30	0.40
Chemical composition as per SEL	0.33– 0.41	0.80– 1.20	0.25– 0.50	≤  0.030	≤  0.020	4.80– 5.50	1.10– 1.50	0.30– 0.50

 

Register of European Steels (SEL)	X 37 CrMoV 5-1
DIN EN ISO 4957	X 37 CrMoV 5-1
AFNOR	X 38 CDV 5
AISI	H 11
BS	BH 11

Characteristics
Tungsten-free hot work tool steel on a CrMoV base. Insensitive to temperature shock, and with high
wear resistance.

Applications
Extruder tools including pipe extruders, such as extrusion stems, die holders, insert and bridge
type tools, liners and liner holders, outer mantles.
Highly stressed plastic moulds. Mould inserts with abrasive stress, such as occurs in processing thermosetting plastics, thermoplastics and composite materials
Die-casting moulds, mould inserts, sliders and cores; for processing Al, Mg and zinc die-casting.

Physical properties (reference values)

Thermal expansion coeffi cient (10–6/K)	20–100 °C 10.3	20–250 °C 11.6	20–500 °C 12.8
Thermal conductivity (W/mK)	20 °C 23.0	250 °C 25.0	500 °C 27.0
Young’s modulus (GPa)	20 °C 210	250 °C 195	500 °C 172