GI30

for the manufacture of castings

Classification

Country Section Category
CIS, Russia, Ukraine Cast iron Gray cast iron

Chemical composition

Standard Fe, % Si, % Mn, % P, % C, % S, %
GOST 1412-85 93.58–95 1.3–1.9 0.7–1 < 0.2 3–3.2 < 0.12

Information on suppliers

Physical characteristics

Temperature, °C E\cdot 10^{9}, MPa \alpha\cdot 10^{6}, K^{-1} \varkappa, \frac{W}{m\cdot K} \rho, \frac{kg}{m^3} c\cdot 10^{-3}, \frac{J}{kg\cdot K}
20 130 46 7300
100 10.5 0.525

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}, MPa Treatment
Casting GOST 1412-85 300

Brinell hardness number

Rolling Standard Classifiers Value, HBW
GOST 1412-85 163–270

Casting and technological parameters

linear shrinkage, %
1.3

Analogues

Germany USA
GG30 No.45

Standards

Standard Description
GOST 1412-85

Description of chemical elements

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

Description of physical characteristics

Parameter Units of measurement Description
E\cdot 10^{9} MPa Elastic modulus
\alpha\cdot 10^{6} K^{-1} Coefficient of thermal (linear) expansion (range 20°C–T)
\varkappa \frac{W}{m\cdot K} Coefficient of thermal conductivity (the heat capacity of the material)
\rho \frac{kg}{m^3} The density of the material
c\cdot 10^{-3} \frac{J}{kg\cdot K} The specific heat of the material (range 20°C–T)

Description of mechanical properties

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

Description of the casting and technological parameters

Parameter Units of measurement Description
linear shrinkage % The difference between model dimensions and the model casting