KCH55-4

for the manufacture of machine parts requiring high strength and plasticity

Classification

Country Section Category
CIS, Russia, Ukraine Cast iron Ductile iron

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % P, % C, % S, %
GOST 1215-79 94.52–96.1 1.1–1.3 0.3–1 < 0.08 < 0.1 2.5–2.8 < 0.2

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\epsilon_L$$, % Treatment
Casting GOST 1215-79 539 3–4

Brinell hardness number

Rolling Standard Classifiers Value, HBW
GOST 1215-79 192–241

Analogues

Germany USA
GTS55-04 6004

Standards

Standard Description
GOST 1215-79

Description of chemical elements

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

Description of mechanical properties

Parameter Units of measurement Description
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\epsilon_L$$ % Elongation at break (longitudinal)