Designation
| Name |
The value |
| Designation GOST Cyrillic |
09Х17Н7Ю1 |
| Designation GOST Latin |
09X17H7Ju1 |
| Transliteration |
09H17N7Yu1 |
| By chemical elements |
09Cr17Н7Al1 |
| Name |
The value |
| Designation GOST Cyrillic |
0Х17Н7Ю1 |
| Designation GOST Latin |
0X17H7Ju1 |
| Transliteration |
0H17N7Yu1 |
| By chemical elements |
0Cr17Н7Al1 |
Description
09KH17N7JU1 steel is used: for the manufacture of wing devices, rudders and brackets, marine shafts, operating in seawater.
Note
Stainless steel austenitic-martensitic class.
The best corrosion resistance the steel has, after two-time first holiday 740−760 °C.
Standards
| Name |
Code |
Standards |
| Classification, nomenclature and General rules |
В30 |
GOST 5632-72 |
| Bars and shapes |
В32 |
GOST 5949-75, TU 14-11-245-88 |
| Blanks. Of the workpiece. Slabs |
В31 |
OST 3-1686-90 |
| Processing of metals by pressure. Forgings |
В03 |
TU 14-1-3589-83 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
Al |
V |
Ti |
Mo |
W |
| GOST 5632-72 |
≤0.09 |
≤0.025 |
≤0.035 |
≤0.8 |
16.5-18 |
≤0.8 |
6.5-7.5 |
Rest |
≤0.3 |
0.7-1.1 |
≤0.2 |
≤0.2 |
≤0.3 |
≤0.2 |
Fe is the basis.
Mechanical properties
| Section, mm |
sT|s0,2, MPa |
σU, MPa |
d5, % |
y, % |
KCU, kJ/m2 |
| Bars hot rolled and forged according to GOST 5949-75. Hardening in air, 975-1000 °C + two-time first vacation at 740-760 °C, cooling in air or in water + Re-vacation at 550-600 °C, air cooling |
|
≥735 |
≥830 |
≥12 |
≥40 |
≥490 |
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 |
