Steel 09KH17N3SL (10Х17Н3СЛ)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
09Х17Н3СЛ |
| Designation GOST Latin |
09X17H3CL |
| Transliteration |
09H17N3SL |
| The chemical elements |
09Cr17Н3С |
| Name |
The value |
| Designation GOST Cyrillic |
10Х17Н3СЛ |
| Designation GOST Latin |
10X17H3CL |
| Transliteration |
10H17N3SL |
| The chemical elements |
10Cr17Н3С |
Description
09KH17N3SL steel is used: for the manufacture of castings parts, high tensile strength for chemical industry, working in environments of medium aggressiveness (nitrogen and weak organic acids, solutions of salts of organic and inorganic acids); casting investment casting for aircraft industry group I — loaded items with the specific requirements for density and mechanical properties: high load brackets, sealed the housing, the frames of gyroscopes, stabilizers, etc. and group II — non-loaded and lightly loaded parts, rings, flanges, fittings, leaking instrument cabinets, etc.
Note
Steel corrosion resistant martensitic grade, high strength at normal temperature.
Standards
| Name |
Code |
Standards |
| Castings with special properties (cast iron and steel) |
В83 |
GOST 2176-77 |
| Castings, steel |
В82 |
GOST 977-88, OST 3-4365-79, OST 1 80059-83 |
| Solid alloys, metal-ceramic products and powders, metal |
В56 |
OST 107.750001.001-91 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
| GOST 977-88 |
0.05-0.12 |
≤0.03 |
≤0.035 |
0.3-0.8 |
15-18 |
0.8-1.5 |
2.8-3.8 |
The rest |
- |
| GOST 2176-77 |
0.05-0.12 |
≤0.03 |
≤0.035 |
0.3-0.8 |
15-18 |
0.8-1.5 |
2.8-3.8 |
The rest |
≤0.3 |
Fe is the basis.
According to GOST 2176-77 the chemical composition is given for steel grade 09Х17Н3СЛ. Deviations from the norms of chemical composition are allowed: for carbon ± 0.020%; for silicon ± 0.10%; on manganese, copper, chromium and nickel ± 0.10% each; by titanium and tungsten ± 0.050% each; by vanadium, molybdenum and niobium ± 0.020% each.
Mechanical characteristics
| Section, mm |
sT|s0,2, MPa |
σB, MPa |
d5, % |
y, % |
kJ/m2, кДж/м2 |
| Casting. Quenching in oil with 1040-1060 °C + Vacation at 540-560 °C, air cooling |
| 100 |
≥736 |
≥932 |
≥8 |
≥20 |
≥245 |
| Casting. Annealing at 660-670 °C + Quenching in oil with 1040-1060 °C + Vacation at 300-350 °C, air cooling |
| 100 |
≥736 |
≥981 |
≥8 |
≥15 |
≥196 |
| Casting. Vacation at 670-690 °C, air cooling |
| 100 |
≥638 |
≥834 |
≥6 |
≥10 |
- |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| sT|s0,2 |
Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σB |
Limit short-term strength |
| d5 |
Elongation after rupture |
| y |
The relative narrowing |
| kJ/m2 |
Toughness |