Designation
| Name |
The value |
| Designation GOST Cyrillic |
Х25Н13АТЛ |
| Designation GOST Latin |
X25H13ATL |
| Transliteration |
H25N13ATL |
| By chemical elements |
Cr25Н13NTi |
Description
Х25Н13АТЛ steel is used: for the manufacture of castings parts, steam, gas, hydraulic turbines and axial compressors operating at temperatures up to +700 °C.
Note
Steel corrosion resistant austenitic class.
At increased requirements to the details of heat resistance steel Х25Н13АТЛ operated at temperatures up to +580 °C. If the steel Х25Н13АТЛ used as high-temperature, operating temperature max details +650 °C.
Standards
| Name |
Code |
Standards |
| Steel castings |
В82 |
OST 108.961.04-80 |
| Welding and cutting metals. Soldering, riveting |
В05 |
RTM 108.020.122-78 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
N |
Ti |
| OST 108.961.04-80 |
0.13-0.2 |
≤0.025 |
≤0.025 |
1-1.5 |
23-25 |
≤0.7 |
12-14 |
Rest |
≤0.3 |
0.08-0.18 |
0.1-0.2 |
Fe is the basis.
According to OST 108.961.04-80, the total sulfur and phosphorus content should be ≤ 0.050% for all possible tolerances.
Mechanical properties
| sT|s0,2, MPa |
σU, MPa |
d5, % |
y, % |
KCU, kJ/m2 |
| Casting parts of gas turbines. Austenization at 1160-1180 °C, air cooling + ageing at 760-780 °C (extract 10 h) cooling furnace |
| ≥235 |
≥441 |
≥20 |
≥30 |
≥340 |
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 |
Technological properties
| Name |
The value |
| Welding defects |
Welding defects of castings after cutting is usually carried out without heating. Welding defects of manual welding is done with electrodes type e-09Х19Н11Г3М2Ф (GOST 10052) brand LPS-5. After welding and repair of defects by welding is applied heat treatment. |
