30HG2STL

shoes for tracked vehicles, corner knives bulldozers, excavators kremalernyh gear, support rollers dredging chains, working bodies of mine machines, levers, gears.

Classification

Country Section Category
CIS, Russia, Ukraine Steels and alloys for castings Steel for casting with special properties

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Ti, % Cu, % Ni, % РЗЭ, % P, % C, % S, %
GOST 21357-87 95.32–97.22 0.4–0.8 1.5–1.8 0.6–1 0.01–0.04 < 0.3 < 0.3 0.02–0.05 < 0.02 0.25–0.35 < 0.02

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers σU, MPa σY, MPa ψ, % d5, % Treatment
Castings GOST 21357-87 700 600 40 12 Normalization 890 - 910 ° C, Vacation 640 - 660 ° C
Castings GOST 21357-87 750 650 40 15 Water hardening 870 - 890 ° C, Release 640 - 660 ° C
Castings GOST 21357-87 1600 1300 14 4 Water quenching 870 - 890 ° C, Release 200 - 220 ° C, (wear-resistant steel)

Heat Treatment Modes

Treatment
Normalization 890 - 910 ° C, Vacation 640 - 660 ° C
Water hardening 870 - 890 ° C, Release 640 - 660 ° C
Water quenching 870 - 890 ° C, Release 200 - 220 ° C, (wear-resistant steel)

Standards

Standard Description
GOST 21357-87

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Mn % Manganese
Cr % Chrome
Ti % Titan
Cu % Copper
Ni % Nickel
РЗЭ % Rare earth elements
P % Phosphorus
C % Carbon
S % Sulfur

Description of mechanical properties

Parameter Units of measurement Description
d5 % Elongation at break
σY MPa Yield strength
σU MPa Ultimate tensile strength
ψ % Reduction in cross section on fracture