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
CIS, Russia, Ukraine Tool steel Die tool steel

Chemical composition

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

Information on suppliers

Physical characteristics

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
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
Alloy GOST 5950-73 annealing 241

Critical point temperatures

Ac1, K Ac3(Acm), K Ar3(Arcm), 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
H11 1.2343 (X38CrMoV5-1) SKD6 X37CrMoV51KU 2343 X37CrMoV5-1 UD12 X37CrMoV5 4Cr5MoSiV X37CrMoV5-1 WCL 39VSiMoCr52 19552 BOHLERW300

Standards

Standard Description
GOST 5950-2000 GOST

Description of chemical elements

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
$$\varkappa$$ $$\frac{W}{m\cdot K}$$ 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
$$\sigma _{U}$$ $$MPa$$ 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
Ac1 K
Ac3(Acm) K
Ar3(Arcm) K
Ar1 K
Mn K