Designation
| Name |
The value |
| Designation GOST Cyrillic |
30ХГФРЛ |
| Designation GOST Latin |
30XGFPL |
| Transliteration |
30HGFRL |
| By chemical elements |
30CrMnVB |
Description
30ХГФРЛ steel is used: for the manufacture of castings, gears, gears, blocks.
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Cu |
V |
B |
|
0.28-0.36 |
≤0.04 |
≤0.04 |
0.8-1.25 |
0.5-0.9 |
0.2-0.6 |
≤0.3 |
≤0.03 |
0.05-0.1 |
≤0.004 |
Chemical composition is not verified by NTD. Total verified brands for chemical compounds: 2906 of 3316.
Mechanical properties
| Section, mm |
sT|s0,2, MPa |
σU, MPa |
d5, % |
y, % |
KCU, kJ/m2 |
HB, MPa |
| Quenching with 900-920 °C + Vacation at 650-670 °C, air cooling |
| 100 |
≥500 |
≥700 |
≥12 |
≥25 |
≥400 |
196-225 |
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 |
| d5 |
Elongation after rupture |
| y |
The relative narrowing |
| KCU |
Toughness |
| HB |
Brinell hardness number |
Physical characteristics
| Temperature |
G, HPa |
| 0 |
76 |
| 100 |
73 |
| 200 |
68 |
| 300 |
63 |
| 400 |
59 |
| 500 |
52 |
| 600 |
50 |
| 700 |
47 |
| 800 |
42 |
A description of the physical symbols
| Name |
Description |
| Е |
The normal elasticity modulus |
| r |
Density |
| l |
Coefficient of thermal conductivity |
| R |
UD. the resistivity |
Technological properties
| Name |
The value |
| Склонность к отпускной хрупкости |
inclined |