1.6580 (30CrNiMo8)

Classification

Country Section Category
Germany Structural, Pressure Vessel and Engineering Steels Cr-Ni-Mo with Mo < 0.4% + Ni < 0.2%

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Ni, % P, % C, % S, % Mo, %
93.5–95.34 < 0.4 0.5–0.8 1.8–2.2 1.8–2.2 < 0.025 0.26–0.34 < 0.035 0.3–0.5

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\epsilon_{L (L_0 = 5.65\sqrt{S_o})}$$, % $$\epsilon_T$$, % $$R_{eH}$$, $$MPa$$ $$\psi$$, % $$KV_{L}$$, $$J$$ $$KV_{T}$$, $$J$$ Treatment
< 16 moderate hardening 1250–1450 9 8–14 1050 40 30–45 20–27
16–40 moderate hardening 1250–1450 9 1050 40
40–100 moderate hardening 1000–1300 10 900 45
100–160 moderate hardening 1000–1200 11 800 50
160–250 moderate hardening 850–1100 12 700 50
250–330 moderate hardening 850
330–660 moderate hardening 800 590
< 160 moderate hardening 700
160–330 moderate hardening 630

Brinell hardness number

Rolling Standard Classifiers Value, HBW
annealing, soft 248–255

Analogues

CIS, Russia, Ukraine
30HN2MA

Standards

Standard Description
EN 10083-1
EN 10250-3
EN 10269
EN 10277-5
SEW550

Description of chemical elements

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

Description of mechanical properties

Parameter Units of measurement Description
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\epsilon_{L (L_0 = 5.65\sqrt{S_o})}$$ % 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
$$KV_{L}$$ $$J$$ Impact energy (longitudinal)
$$KV_{T}$$ $$J$$ Impact energy (transverse)