1.8519 (31CrMoV9)

Classification

Country Section Category
Germany Structural, Pressure Vessel and Engineering Steels Nitriding Steels

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % V, % P, % C, % S, % Mo, %
95.35–96.78 < 0.4 0.4–0.7 2.3–2.7 0.1–0.2 < 0.025 0.27–0.34 < 0.035 0.15–0.25

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{0.2}$$, $$MPa$$ $$\epsilon_L$$, % $$KV_{L}$$, $$J$$ Treatment
16–40 moderate hardening 1100–1300 900 9 25–40
40–100 moderate hardening 1000–1200 800 10
100–160 moderate hardening 900–1100 700 11
160–250 moderate hardening 850–1050 650 12

Brinell hardness number

Rolling Standard Classifiers Value, HBW
annealing, soft 248

Analogues

CIS, Russia, Ukraine
30H3MF

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
Mo % Molybdenum

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
$$\epsilon_L$$ % Elongation at break (longitudinal)
$$KV_{L}$$ $$J$$ Impact energy (longitudinal)