Steel 10KH12NDL (0Х12НДЛ)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
10Х12НДЛ |
| Designation GOST Latin |
10X12HDL |
| Transliteration |
10H12NDL |
| The chemical elements |
10Cr12НCu |
| Name |
The value |
| Designation GOST Cyrillic |
0Х12НДЛ |
| Designation GOST Latin |
0X12HDL |
| Transliteration |
0H12NDL |
| The chemical elements |
0Cr12НCu |
Description
10KH12NDL steel is used: for the manufacture of foundry items carnality designs of working wheels of hydraulic turbines, components of turbines (blades, castings of blades for Kaplan turbines, hydraulics), working in conditions of cavitation damage; casting parts, steam, gas turbines and axial compressors; castings shirts shafts paper and Board machines.
Note
Steel corrosion-resistant martensitic class. Kavitatsionnogo. Corrosion resistant and arationality in terms of running water. Steel is not prone to temper brittleness, not placentocentesis.
Standards
| Name |
Code |
Standards |
| Castings with special properties (cast iron and steel) |
В83 |
GOST 2176-77, TU 26-08.503-78 |
| Castings, steel |
В82 |
GOST 977-88, TU 108-23.46-88, TU 108-976-80, TU 108-977-80, TU 108-978-80 |
| Welding and cutting of metals. Soldering, riveting |
В05 |
RTM 108.020.122-78 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
| GOST 977-88 |
≤0.1 |
≤0.025 |
≤0.025 |
0.2-0.6 |
12-13 |
0.17-0.4 |
1-1.5 |
The rest |
0.8-1.1 |
| GOST 2176-77 |
≤0.1 |
≤0.025 |
≤0.025 |
0.2-0.6 |
11.5-13 |
0.17-0.4 |
1-1.5 |
The rest |
0.8-1.1 |
Fe is the basis.
According to GOST 2176-77, the chemical composition is given for steel grade 10X12NDL. 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 |
| Normalization at 940-960 °C, air cooling or Quenching 950-1050 °C at cooling rate 30 °C/h + vacation at 650-680 °C, air cooling |
| 100 |
≥441 |
≥638 |
≥14 |
≥30 |
≥294 |
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 |
Technological properties
| Name |
The value |
| Propensity to temper brittleness |
Tend not. |
| Flock-sensitive sensitivity |
not sensitive. |
| Defect welding |
Welding defects of castings after cutting is carried out with preliminary and attendant heating up to 200-250 °C. Welding defects by manual welding is done with electrodes type e-06Х13Н (GOST 10052) brand CL-41. |