Steel 10KH12NDL (0Х12НДЛ)

Designation

Name The value
Designation GOST Cyrillic 10Х12НДЛ
Designation GOST Latin 10X12HDL
Transliteration 10H12NDL
By chemical elements 10Cr12НCu
Name The value
Designation GOST Cyrillic 0Х12НДЛ
Designation GOST Latin 0X12HDL
Transliteration 0H12NDL
By 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 (iron and steel) В83 GOST 2176-77, TU 26-08.503-78
Steel castings В82 GOST 977-88, TU 108-23.46-88, TU 108-976-80, TU 108-977-80, TU 108-978-80
Welding and cutting metals. Soldering, riveting В05 RTM 108.020.122-78

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu
GOST 977-88 ≤0.1 ≤0.025 ≤0.025 0.2-0.6 12-13 0.17-0.4 1-1.5 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 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 properties

Section, mm sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2
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
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
Склонность к отпускной хрупкости Tend not.
Flock-sensitive sensitivity not sensitive.
Welding defects 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.