Alloy ХН43БМТЮ (ЭП915)

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    • Designation

    Name The value
    Designation GOST Cyrillic ХН43БМТЮ
    Designation GOST Latin XH43BMTJu
    Transliteration HN43BMTYu
    By chemical elements CrNi43BeCuTeAl
    Name The value
    Designation GOST Cyrillic ЭП915
    Designation GOST Latin EP915
    Transliteration EhP915
    By chemical elements -

    Description

    Alloy ХН43БМТЮ used: for the production of long products, hot and cold rolled sheet, forgings intended for fabrication of oil and gas and chemical industry and power engineering.

    Standards

    Name Code Standards
    Processing of metals by pressure. Forgings В03 TU 14-1-3617-83
    Bars and shapes В32 TU 14-1-3618-83
    Sheets and strips В33 TU 14-1-4155-86, TU 14-1-4835-90, TU 14-1-4836-90
    Blanks. Of the workpiece. Slabs В31 TU 14-1-4546-88

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Al V Ti Mo Nb Ca Ce
    TU 14-1-4155-86 0.03-0.7 ≤0.01 ≤0.01 ≤0.6 13-15 ≤0.5 42-45 Rest 0.2-1 0.1-0.5 1.5-2 1-2 2.3-2.8 ≤0.02 ≤0.02
    Ni is the basis.
    According to TU 14-1-3617-83 the chemical composition is given for alloys of grades ХН43БМТЮ-ВД (ЭП915-ВД) and ХН43БМТЮ-ИД (ЭП915-ИД). Cerium and calcium are administered by calculation and chemical analysis is not determined.
    According to TU 14-1-4155-86 the chemical composition is given for alloys of grades ХН43БМТЮ-ВД (ЭП915-ВД) and ХН43БМТЮ-ИД (ЭП915-ИД). Cerium and calcium are introduced into the metal by calculation and chemical analysis is not determined. In the finished metal, deviations in chemical composition are allowed: for carbon ± 0.010%, for molybdenum +0.20%, for titanium ± 0.10%. The permissible residual copper content is not more than 0.25%, tungsten - not more than 0.20%. Calcium is introduced into the metal when melting in open furnaces.

    Mechanical properties

    Section, mm sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2
    Sheets cold rolled on the other 14-1-4155-86. Tempering in air or under a water shower from 1010-1050 °C, exposure at the rate of 2-3 minutes per 1 mm section (delivery condition) or Aging at 730-770 °C (exposure for 8 hours), air cooling + Ageing at 630-670 (extract 8 hours), air cooling
    ≥785 ≥1130 ≥15 - -
    ≥590 ≥780 ≥5 - -
    Forging as supplied on the other 14-1-3617-83 (samples)
    ≥750 ≥1150 ≥18 ≥30 ≥590
    ≥600 ≥800 ≥5 ≥10 -

    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