Designation
| Name |
The value |
| Designation GOST Cyrillic |
08Х14Н5М2ДЛ |
| Designation GOST Latin |
08X14H5M2DL |
| Transliteration |
08H14N5M2DL |
| By chemical elements |
08Cr14Н5Mo2Cu |
| Name |
The value |
| Designation GOST Cyrillic |
ВНЛ-3 |
| Designation GOST Latin |
BHL-3 |
| Transliteration |
VNL-3 |
| By chemical elements |
WНBe-3 |
Description
08Х14Н5М2ДЛ steel is used: for the manufacture of cast billets and bars; shaped castings parts for critical applications for the aviation industry.
Note
Steel high-strength corrosion-resistant martensitic class.
Standards
| Name |
Code |
Standards |
| Classification, nomenclature and General rules |
В20 |
OST 1 90005-91 |
| Castings with special properties (iron and steel) |
В83 |
OST 1 90090-79, TU 1-812-0053-81 |
| Bars and shapes |
В32 |
TU 14-1-861-74 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
N |
Al |
V |
Ti |
Mo |
Nb |
W |
| OST 1 90090-79 |
≤0.08 |
≤0.03 |
≤0.03 |
≤1 |
13-14.5 |
≤0.7 |
4.5-5.5 |
Rest |
1.2-1.75 |
≤0.05 |
≤0.1 |
≤0.05 |
≤0.05 |
1.5-2 |
≤0.1 |
≤0.2 |
Fe is the basis.
According to OST 1 90090-79 the chemical composition is given for steel grade 08H14N5M2DL (VNL-3). In steel, the nitrogen content is up to 0.070%.
Mechanical properties
| Section, mm |
sT|s0,2, MPa |
σU, MPa |
d5, % |
y, % |
KCU, kJ/m2 |
HB, MPa |
HRC |
| Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91 |
| - |
- |
1080-1270 |
- |
- |
- |
311-415 |
31-38 |
| - |
- |
1230-1420 |
- |
- |
- |
341-445 |
36-42 |
| - |
- |
- |
- |
- |
- |
269-341 |
27-33 |
| The casting and the ceramic mold according to OST 1 90090-79. Pre-T/A: Heating up to 1100-1120 °C, air cooling + Final T/O: Hardening in air, 960-980 °C + Aging at 340-360 °C (1-3 hours), air cooling |
|
≥834 |
≥1080 |
≥14 |
≥40 |
≥490 |
311-415 |
- |
| The casting and the ceramic mold according to OST 1 90090-79. Pre-T/A: Heating up to 1100-1120 °C, air cooling + Final T/O: Hardening in air, 960-980 °C + Ageing at 450-470 °C (1 h), air cooling |
|
≥883 |
≥1226 |
≥12 |
≥35 |
≥392 |
341-445 |
- |
| The casting and the ceramic mold according to OST 1 90090-79. Pre-T/A: Heating up to 1100-1120 °C, air cooling + Final T/O: Hardening in air, 960-980 °C + Aging at 490-510 °C (1 h), air cooling |
|
≥885 |
≥1230 |
≥12 |
≥35 |
≥392 |
363-445 |
- |
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 |
| HRC |
Rockwell hardness (indenter diamond spheroconical) |
