4H5MFS (4H5MF1S, 4H4VMFS)

For small dies, tools for horizontal forging machines.

small hammer dies, large (cross-section of more than 200 mm) and the Molotov-press inserts the hot deformation of structural steel and non-ferrous alloys in large-scale and mass production, mold injection molding of aluminum and zinc, and magnesium alloys.

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Tool steel	Die tool steel

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	V, %	P, %	C, %	S, %	Mo, %
Standard	Fe, %	Si, %	Mn, %	Cr, %	Cu, %	Ni, %	V, %	P, %	C, %	S, %	Mo, %
GOST 5950-2000	89.64–92.58	0.9–1.2	0.2–0.5	4.5–5.5	< 0.3	< 0.4	0.3–0.5	< 0.03	0.32–0.4	< 0.03	1.2–1.5

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Physical characteristics

Temperature, °C	$\varkappa$ , $\frac{W}{m\cdot K}$	$\rho$ , $\frac{kg}{m^3}$	$R\cdot 10^{-6}$ , $\Omega\cdot m$
Temperature, °C	$\varkappa$ , $\frac{W}{m\cdot K}$	$\rho$ , $\frac{kg}{m^3}$	$R\cdot 10^{-6}$ , $\Omega\cdot m$
20	29	7750	0.48
100	30	7724
200	30	7697
300	31	7670
400	33	7641
500	31	7600
600	30	7573
700	28	7546
800	26	7520
900	27	7495

Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{P}$ , $MPa$	$KCU\cdot 10^{3}$ , $\frac{J}{m^2}$	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{P}$ , $MPa$	$KCU\cdot 10^{3}$ , $\frac{J}{m^2}$	Treatment
Metal rolling		10			1750	1480	570	Hardening of 1000-1020 ° C, and Holidays 530-560 ° C, 500-520 ° C and Holidays

Brinell hardness number

Rolling	Standard	Classifiers	Value, HBW
Rolling	Standard	Classifiers	Value, HBW
Alloy	GOST 5950-73	annealing	241

Critical point temperatures

Ac₁, K	Ac₃(Ac_m), K	Ar₃(Arc_m), K	Ar₁, K	Mn, K
Ac₁, K	Ac₃(Ac_m), K	Ar₃(Arc_m), K	Ar₁, K	Mn, K
840	870	810	735	300

Analogues

USA	Germany	Japan	France	United Kingdom	European Union	Italy	Spain	China	Bulgaria	Poland	Romania	Czech Republic	Austria
USA	Germany	Japan	France	United Kingdom	European Union	Italy	Spain	China	Bulgaria	Poland	Romania	Czech Republic	Austria
H11	1.2343 (X38CrMoV5-1)	SKD6	X37CrMoV51KU	2343	X37CrMoV5-1	UD12	X37CrMoV5	4Cr5MoSiV	X37CrMoV5-1	WCL	39VSiMoCr52	19552	BOHLERW300

Standards

Standard	Description
Standard	Description
GOST 5950-2000	GOST

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Mn	%	Manganese
Cr	%	Chrome
Cu	%	Copper
Ni	%	Nickel
V	%	Vanadium
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur
Mo	%	Molybdenum

Description of physical characteristics

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$\varkappa$	$\frac{W}{m\cdot K}$	Coefficient of thermal conductivity (the heat capacity of the material)
$\rho$	$\frac{kg}{m^3}$	The density of the material
$R\cdot 10^{-6}$	$\Omega\cdot m$	Electrical resistivity

Description of mechanical properties

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$\sigma _{U}$	$MPa$	Ultimate tensile strength
$\sigma_{P}$	$MPa$	Proportionality limit
$KCU\cdot 10^{3}$	$\frac{J}{m^2}$	Impact toughness

Description of temperatures of critical points

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
Ac₁	K
Ac₃(Ac_m)	K
Ar₃(Arc_m)	K
Ar₁	K
Mn	K