CHNHMD

for parts with high mechanical properties, wear and corrosion resistance in mildly alkaline, environments of gas (combustion products, technical oxygen), and aqueous solutions.

Classification

Country Section Category
CIS, Russia, Ukraine Cast iron Low alloy cast iron

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Cu, % Ni, % P, % C, % S, % Mo, %
GOST 7769-82 89.83–93.5 1.6–2 0.8–1.2 0.2–0.7 0.2–0.5 0.7–1.6 < 0.15 2.8–3.2 < 0.12 0.2–0.7

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ Treatment
Casting GOST 7769-82 290

Brinell hardness number

Rolling Standard Classifiers Value, HBW
GOST 7769-82 201–286

Standards

Standard Description
GOST 7769-82

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
Mo % Molybdenum

Description of mechanical properties

Parameter Units of measurement Description
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength