Designation
| Name |
The value |
| Designation GOST Cyrillic |
40ХНЛ |
| Designation GOST Latin |
40XHL |
| Transliteration |
40HNL |
| By chemical elements |
40CrН |
Description
40KHNL steel is used: for the manufacture of castings to various industrial purpose.
Standards
| Name |
Code |
Standards |
| Steel castings |
В82 |
GOST 977-88 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
| GOST 977-88 |
0.35-0.45 |
≤0.04 |
≤0.04 |
0.4-0.9 |
0.5-0.8 |
0.2-0.5 |
1-1.5 |
Rest |
Fe is the basis.
GOST 977-88 allows the introduction of titanium in an amount of up to 0.15% in order to improve the mechanical properties.
Mechanical properties
| Section, mm |
sT|s0,2, MPa |
σU, MPa |
d |
y, % |
KCU, kJ/m2 |
| Annealing in air from 830-870 °C + vacation at 550-650 °C, air cooling |
| 100 |
≥481 |
≥672 |
≥12 |
≥25 |
≥383 |
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 |
