Designation
| Name |
The value |
| Designation GOST Cyrillic |
08Х17Н34В5Т3Ю2РЛ |
| Designation GOST Latin |
08X17H34B5T3Ju2PL |
| Transliteration |
08H17N34V5T3Yu2RL |
| By chemical elements |
08Cr17Н34W5Ti3Al2B |
Description
08KH17N34V5T3JU2RL steel is used: for the manufacture of castings in nozzle and rotor blades of gas turbines; solid rotors and other parts operating at temperatures up to +800 °C.
Note
Steel heat-resistant (up to +1000 °C) austenitic.
Standards
| Name |
Code |
Standards |
| Steel castings |
В82 |
GOST 977-88 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Al |
B |
Ti |
W |
Ce |
| GOST 977-88 |
≤0.08 |
≤0.01 |
≤0.01 |
0.3-0.6 |
15-18 |
0.2-0.5 |
32-35 |
Rest |
1.7-2.1 |
≤0.05 |
2.6-3.2 |
4.5-5.5 |
≤0.01 |
Fe is the basis.
According to GOST 977-88, the content and necessity of control of boron and cerium is established in the design documentation (CD).
Mechanical properties
| Section, mm |
sT|s0,2, MPa |
σU, MPa |
d5, % |
y, % |
| Castings according to GOST 977-88. Hardening in air, 1140-1160 °C + Aging at 740-760 °C (endurance 32 hours), air cooling |
| 100 |
≥687 |
≥785 |
≥3 |
≥3 |
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 |
