Designation
| Name |
The value |
| Designation GOST Cyrillic |
03Х18Н12Т |
| Designation GOST Latin |
03X18H12T |
| Transliteration |
03H18N12T |
| By chemical elements |
03Cr18Н12Ti |
| Name |
The value |
| Designation GOST Cyrillic |
000Х18Н12Т |
| Designation GOST Latin |
000X18H12T |
| Transliteration |
000H18N12T |
| By chemical elements |
000Cr18Н12Ti |
Description
03Х18Н12Т steel is used: for the manufacture of welded equipment operating in environments of increased aggressiveness (nitric acid, nitrate environments, acetic acid, alkaline solutions and salts); heat exchangers, muffles, pipes, fittings furnace parts
Note
Steel corrosion resistant austenitic class.
Standards
| Name |
Code |
Standards |
| Welding and cutting metals. Soldering, riveting |
В05 |
TU 14-1-656-73 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
N |
V |
Mo |
W |
O |
| TU 14-1-656-73 |
≤0.03 |
≤0.02 |
≤0.03 |
≤0.4 |
17-19 |
≤0.4 |
11.5-13 |
Rest |
≤0.2 |
≤0.03 |
≤0.2 |
≤0.3 |
≤0.2 |
≤0.06 |
Fe is the basis.
According to TU 14-1-656-73 the chemical composition is given for steel grade 03H18N12T. The titanium content should be within 5С ÷ 0,5%.
Mechanical properties
| Section, mm |
σU, MPa |
d5, % |
y, % |
| Bars hot rolled and forged on the other 14-1-656-73. The longitudinal samples. Quenching in water from 1000-1050 °C |
|
≥441 |
≥50 |
≥55 |
Description mechanical marks
| Name |
Description |
| σU |
Limit short-term strength |
| d5 |
Elongation after rupture |
| y |
The relative narrowing |
Technological properties
| Name |
The value |
| Microstructure |
The content of ferritic phase in rods with a diameter or a side of a square of 80 mm or more must not exceed 0.5 points (1-2 %) Rods with a diameter or side of less than 80 mm and the strip is not subjected to a determination of the ferritic phase. |
