σU
MPa
σP
MPa
ϵL
ψ
KCU⋅103
Jm2

5HNV

For molotovy stamps of steam-air and pneumatic hammers.

for steam-hammer dies and pneumatic hammers with falling parts weighing up to 3 tons

Classification

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

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Cu, % Ni, % P, % C, % S, % W, %
GOST 5950-2000 94.54–96.6 0.1–0.4 0.5–0.8 0.5–0.8 < 0.3 1.4–1.8 < 0.03 0.5–0.6 < 0.03 0.4–0.7

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}σU, MPaMPa \sigma_{P}σP, MPaMPa \epsilon_LϵL, % \psiψ, % KCU\cdot 10^{3}KCU⋅103, \frac{J}{m^2}Jm2 Treatment
Alloy 1280 1050 11 45 400

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Alloy GOST 5950-73 annealing 255

Critical point temperatures

Ac1, K Ac3(Acm), K Mn, K
730 780 205

Analogues

Germany USA Japan France United Kingdom European Union Italy Poland Czech Republic Austria
1.2714 L6 SKT4 55NCDV7 BH224/5 55NiCrMoV7 56NiCrMoV7KU WNLV 19663 W501
55NiCrMoV6

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
P % Phosphorus
C % Carbon
S % Sulfur
W % Tungsten

Description of mechanical properties

Parameter Units of measurement Description
\sigma _{U}σU MPaMPa Ultimate tensile strength
\sigma_{P}σP MPaMPa Proportionality limit
\epsilon_LϵL % Elongation at break (longitudinal)
\psiψ % Reduction in cross section on fracture
KCU\cdot 10^{3}KCU⋅103 \frac{J}{m^2}Jm2 Impact toughness

Description of temperatures of critical points

Parameter Units of measurement Description
Ac1 K
Ac3(Acm) K
Mn K