Designation
| Name |
The value |
| Designation GOST Cyrillic |
27ХН2МФЛ |
| Designation GOST Latin |
27XH2MFL |
| Transliteration |
27HN2MFL |
| By chemical elements |
27CrН2MoV |
Description
27KHN2MFL steel is used: for the manufacture of solid the teeth and their attachment elements (clips, wedges) ekskavatorov.
Note
Cold-resistant steel.
Standards
| Name |
Code |
Standards |
| Castings with special properties (iron and steel) |
В83 |
GOST 21357-87 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
V |
Mo |
| GOST 21357-87 |
0.23-0.3 |
≤0.02 |
≤0.02 |
0.6-0.9 |
0.8-1.2 |
0.2-0.42 |
1.65-2 |
Rest |
≤0.3 |
0.08-0.15 |
0.3-0.5 |
Fe is the basis.
Mechanical properties
| sT|s0,2, MPa |
σU, MPa |
d |
y, % |
KCU, kJ/m2 |
HB, MPa |
| Casting. Quenching in water from 880-920 °C + vacation at 570-590 °C, air cooling (KCU-60). Steel is used as wear-resistant |
| ≥800 |
≥1100 |
≥10 |
≥22 |
≥3 |
≥265 |
Description mechanical marks
| Name |
Description |
| sT|s0,2 |
Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σU |
Limit short-term strength |
| d |
Elongation after rupture |
| y |
The relative narrowing |
| KCU |
Toughness |
| HB |
Brinell hardness number |
