27HGSNMDTL (27HGSNMDTLA)

tips for frozen soil rippers, bulldozers heavy support rollers, drive pinion, sprockets tracked vehicles and other items.

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, % Mo, %
GOST 21357-87 93.43–96.33 0.7–1.3 0.9–1.5 0.7–1.3 0.03–0.07 0.3–0.5 0.7–1.2 0.02–0.05 < 0.02 0.22–0.31 < 0.02 0.1–0.3

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}, MPa \sigma_{Y}, MPa \psi, % d5, % Treatment
Castings GOST 21357-87 800 650 20 12 Normalization 910 - 930 ° C, Vacation 590 - 610 ° C
Castings GOST 21357-87 850 700 25 12 Water hardening 910 - 930 ° C, Release 640 - 660 ° C
Castings GOST 21357-87 1400 1150 12 8 Water hardening 910 - 930 ° C, Release 200 - 220 ° C, (wear-resistant steel)

Heat Treatment Modes

Treatment
Normalization 910 - 930 ° C, Vacation 590 - 610 ° C
Water hardening 910 - 930 ° C, Release 640 - 660 ° C
Water hardening 910 - 930 ° C, Release 200 - 220 ° C, (wear-resistant steel)

Analogues

Germany USA
30 Mn 5 1330

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
Mo % Molybdenum

Description of mechanical properties

Parameter Units of measurement Description
d5 % Elongation at break
\sigma_{Y} MPa Yield strength
\sigma _{U} MPa Ultimate tensile strength
\psi % Reduction in cross section on fracture