Alloy KHN75MBTJU (ЭИ602)

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    • Designation

    Name The value
    Designation GOST Cyrillic ХН75МБТЮ
    Designation GOST Latin XH75MBTJu
    Transliteration HN75MBTYu
    By chemical elements CrNi75CuBeTeAl
    Name The value
    Designation GOST Cyrillic ЭИ602
    Designation GOST Latin EI602
    Transliteration EhI602
    By chemical elements -

    Description

    Alloy KHN75MBTJU used: for the manufacture of cold-rolled strip; sheet metal parts of turbines parts of gas pipeline systems, instruments, parts of combustion chambers with a limited service life at temperatures up to +950 °C; the welding wire used for welding parts and welding of steel structures in energy engineering; welding electrodes.

    Note

    Alloy, heat-resistant and heat-resistant Nickel-based.
    The recommended maximum operating temperature for limited time +1050 °C, for a long time +950 °C.
    Temperature intense scaling in air +1050−1100 °C.

    Standards

    Name Code Standards
    Sheets and strips В23 GOST 19904-90
    Sheets and strips В33 GOST 24982-81, TU 14-1-1130-74, TU 14-1-146-71, TU 14-1-1747-76, TU 14-1-4296-87
    Classification, nomenclature and General rules В30 GOST 5632-72
    Processing of metals by pressure. Forgings В03 OST 1 90110-73
    Blanks. Of the workpiece. Slabs В31 OST 3-1686-90, TU 14-1-1214-75
    Bars and shapes В32 TU 14-1-3721-84, TU 14-11-245-88
    Tape В34 TU 14-1-927-74
    Welding and cutting metals. Soldering, riveting В05 TU 14-1-997-74, TU 14-1-997-2012

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Cu Al Ti Mo Nb
    TU 14-1-1747-76 ≤0.1 ≤0.012 ≤0.02 ≤0.4 19-22 ≤0.8 Rest ≤3 ≤0.07 0.35-0.75 0.35-0.75 1.8-2.3 0.9-1.3
    TU 14-1-4296-87 ≤0.1 ≤0.012 ≤0.02 ≤0.4 19-22 ≤0.8 Rest ≤3 ≤0.3 0.35-0.75 0.35-0.75 1.8-2.3 0.9-1.3
    GOST 5632-72 ≤0.1 ≤0.012 ≤0.02 ≤0.4 19-22 ≤0.8 Rest ≤3 ≤0.3 0.35-0.75 0.35-0.75 1.8-2.3 0.9-1.3
    Ni is the basis.
    According to TU 14-1-927-74 deoxidizers (cerium, calcium, barium) are introduced into the metal by calculation and chemical analysis is not determined.

    Mechanical properties

    Section, mm sT|s0,2, MPa σU, MPa d5, % y, %
    Cold-rolled steel strip of 0.2-1.2 mm on the other 14-1-927-74. Quenching in water or air from 1050-1080 °C
    - - ≤932 ≥40 -
    Steel cold-rolled sheet (0.8 to 3.9 mm) and HR (2.0 to 11.0 mm) in the delivery state according to GOST 24982-81. Quenching in water, under a water shower or air 1060-1100 °
    ≤3.9 - ≤900 ≥40 -
    ≤3.9 - ≥245 ≥45 -
    4-11 - ≥245 ≥40 -
    4-11 - ≤930 ≥40 -
    Rolled steel. Annealing in air from 1050-1080 °C
    60 ≥400 ≥860 ≥43 ≥37

    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

    Physical characteristics

    Temperature Е, HPa r, kg/m3 l, W/(m · °C) a, 10-6 1/°C
    20 190 8300 - -
    400 165 - 185 15
    500 163 - 202 158
    600 150 - 223 165
    700 137 - 244 181
    100 - - 1345 124
    200 - - 153 134
    300 - - 167 142

    A description of the physical symbols

    Name Description
    Е The normal elasticity modulus
    r Density
    l Coefficient of thermal conductivity
    R UD. the resistivity

    Technological properties

    Name The value
    Weldability without restrictions