1.8159 (50CrV4)

Classification

Country Section Category
Germany Structural, Pressure Vessel and Engineering Steels Cr-Si-V, Cr-Mn-V, Cr-Si-Mn-V

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % V, % P, % C, % S, %
96.45–97.83 < 0.4 0.7–1.1 0.9–1.2 0.1–0.25 < 0.025 0.47–0.55 < 0.025

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{0.2}$$, $$MPa$$ $$\epsilon_{L (L_0 = 80 mm)}$$, % $$\epsilon_{L (L_0 = 5.65\sqrt{S_o})}$$, % $$\epsilon_T$$, % $$R_{eH}$$, $$MPa$$ $$\psi$$, % Treatment
< 16 moderate hardening 1100–1300 9 9 900 40
16–40 moderate hardening 1000–1200 10 800 45
40–100 moderate hardening 900–1100 12 700 50
100–160 moderate hardening 800–1000 13 650 50
160–250 moderate hardening 800–950 13 600 50
0.3–3 annealing, soft 700 550 13

Brinell hardness number

Rolling Standard Classifiers Value, HBW
annealing, soft 248
improved machinability 280
annealing, carbide spheroidization 230

Твёрдость по Викерсу

Rolling Standard Classifiers Value, HV
annealing, soft 220
moderate hardening 370–550

Technological Properties

Weldability
Difficult to weld

Analogues

CIS, Russia, Ukraine
50HGFA
50HFA

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
V % Vanadium
P % Phosphorus
C % Carbon
S % Sulfur

Description of mechanical properties

Parameter Units of measurement Description
$$\sigma_{0.2}$$ $$MPa$$ Tensile stress required to produce a total elongation of 0.2%
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\epsilon_{L (L_0 = 80 mm)}$$ % Elongation at break (longitudinal) (for L0 = 80 mm)
$$\epsilon_{L (L_0 = 5.65\sqrt{S_o})}$$ % Elongation at break (longitudinal) (for L0 = 5.65√So)
$$\epsilon_T$$ % Elongation at break (transverse)
$$R_{eH}$$ $$MPa$$ Upper yield point
$$\psi$$ % Reduction in cross section on fracture

Designation of types of weldability

Parameter Units of measurement Description
no limits Welding is performed without heating and without subsequent heat treatment
Boundedly welded Welding is possible with heating up to 100–120 °C and subsequent heat treatment
Difficult to weld For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing
Not applicable for welded structures