Alloy 05ХН46МВБч (ДИ65)

  • Alloy 05KhN46MVBh (DI65)
  • Alloy KhN30VMT (EP437; VZH102)
  • Alloy KhN30TDU (EP655; VNS12)
  • Alloy KhN38VT (EI703)
  • Alloy KhN45TU (EK101; VKS-46)
  • Alloy KhN45Yu (EP747)
  • Alloy KhN50MVKTYR (EP99)
  • Alloy CrN60VT (EI868; VZh98)
  • Alloy KhN60Yu (EI559A)
  • Alloy KhN70Yu (EI652)
  • Alloy KhN75MBTU (EI602)
  • Alloy KhN77TU (EI437A)
  • Alloy CrN78T (EI435)
  • Alloy EC79

    • Designation

    Name The value
    Designation GOST Cyrillic 05ХН46МВБч
    Designation GOST Latin 05XH46MBBch
    Transliteration 05HN46MVBch
    By chemical elements 05CrNi46CuВBeч
    Name The value
    Designation GOST Cyrillic ДИ65
    Designation GOST Latin DI65
    Transliteration DI65
    By chemical elements ДIr65

    Description

    Alloy 05ХН46МВБч used: for the production of billets, produced on the presses by free forging and is intended for the production of pipes for special and critical applications; piping systems of steam generators of nuclear power plants with helium coolant (HTGR), as well as for different heat exchangers operating in conditions of simultaneous exposure to steam environments high settings and gas environments at temperatures up to 800 °C.

    Note

    Corrosion-resistant, heat-resistant and heat-resistant alloy.

    Standards

    Name Code Standards
    Blanks. Of the workpiece. Slabs В31 TU 14-1-3326-82
    Tubes of non-ferrous metals and alloys В64 TU 14-3-1093-82

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Mo Nb W Ce
    TU 14-1-3326-82 0.03-0.07 ≤0.015 ≤0.02 1.2-2 20-22 ≤0.6 44-48 Rest 4-5 0.9-1.3 2.8-3.5 0.05
    Ni is the basis.
    According to TU 14-1-3326-82, the chemical composition is presented for an alloy of the grade 05HN46MVBh (DI65) of an open electric arc melting. The content of cerium is indicated by calculation and chemical analysis is not determined. Deviations from the content of elements and the residual content of elements in the chemical composition of the alloy in accordance with GOST 5632. A higher content of molybdenum in the alloy is possible, provided that the content of tungsten in it is reduced from the calculation of its replacement by molybdenum in the ratio 2: 1. The alloy determines the nitrogen content - the results are recorded in the certificate.

    Mechanical properties

    Section, mm sT|s0,2, MPa σU, MPa d5, %
    Tubular billet on the other 14-1-3326-82. Heating to 1070-1100 °C (20 minute exposure), air cooling + Ageing at 790-820 °C (excerpt 10 hours), air cooling (longitudinal samples)
    20-25 ≥350 ≥700 ≥30
    20-25 ≥200 ≥500 ≥25

    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

    Technological properties

    Name The value
    Weldability Limited weldable alloy.
    Macrostructure and pollution The macrostructure of alloy tube billets TU 14-1-3326-82 should not have podnasadochnogo looseness, residues shrinkage, brown, subcortical bubbles, cracks, placenow, inclusions and delaminations visible to the naked eye. Alloy macrostructure for Central porosity, spot inhomogeneity and phase separation in the square should not exceed 2 points for each type. The alloy is controlled on the contamination of non-metallic inclusions. The content of nonmetallic inclusions by species, the assessment by the maximum score shall not exceed: - oxides of stroke (OS) ≤ 3.5 points; - point oxides (ON) ≤ 1.5 points; - silicates fragile (CX) ≤ 5.0 score; silicates plastic (SP) ≤ 1.5 points; - silicates, non-deformed (SN) ≤ 5.0 score; sulphides (S) ≤ 2.0 points; - nitrides (NT, NS) ≤ 5.0 score.
    Corrosion resistance The alloy should not be prone to intergranular corrosion.