• View PDF
    Standard
  •   0091-22-66157017
  •   info@torqbolt.com
    • Home
    2. EN 10269 NiCr19Fe19Nb5Mo3 (2.4668)

    EN 10269 NiCr19Fe19Nb5Mo3 (2.4668) Fasteners

    Precipitation-Hardened Nickel-Chromium Superalloy Bolts, Stud Bolts, Screws, Nuts & Washers in EN 10269 NiCr19Fe19Nb5Mo3 (2.4668)

    EN 10269 NiCr19Fe19Nb5Mo3 (2.4668) Fasteners are precipitation-hardened nickel-chromium superalloy fasteners equivalent to Inconel 718, offering outstanding strength, fatigue resistance, and corrosion resistance from cryogenic to elevated temperatures up to 700°C, extensively used in aerospace, gas turbine, nuclear, and critical high-pressure industrial bolting applications.

    EN 10269 NiCr19Fe19Nb5Mo3 Chemical composition

    Material designation Chemical composition, % by mass
    Name Number C Si Mn P max. S max. Al tot B Cr Mo Ni V Others
    Steels for quenching and tempering
    NiCr19Fe19Nb5Mo3 2.4668 0,02 to 0,08 ≤ 0,035 ≤ 0,035 0.015 0.015 0,30 to 0,70 0,002 to 0,006 17,0 to 21,0 2,80 to 3,30 50,00 to 55,00 - Cu ≤ 0,30 ; Co ≤ 1,00 Nb: 4,70 to 5,50
    Ti: 0,60 to 1,20
    Fe: Remaining
    • a Elements not listed in this table may not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast. All appropriate precautions are to be taken to avoid the addition of such elements from scrap and other materials used in production which would impair mechanical properties and the usefulness of the steel.
    • b A controlled sulphur content of 0,015 % to 0,030 % improves the machinability and is therefore recommended and may be agreed at time of enquiry and order. For weldability, a controlled sulphur content of 0,008 % to 0,030 % is recommended and may be agreed at time of enquiry and order.
    • c For requirements regarding magnetic properties up to a maximum of 0,28 % C.

    EN 10269 NiCr19Fe19Nb5Mo3 Mechanical properties

    Mechanical properties at Room Temperature

    Mechanical properties at room temperature and at 20°C of steels and nickel alloys in delivery conditions which do not support the Essential Safety Requirements of Directive 97/23/ECb

    Material designation Heat treatment conditiona Diameter c Proof strength Tensile strength Elongation after fracture Reduction in area Impact energy (ISO-V) at 20°C
    Name Number
    d mm Rp0,2 MPa min. Rm MPa A % min. Z % min. KV2 J min.
    NiCr19Fe19Nb5Mo3 2.4668 +P d ≤ 160 1030 min. 1 230 12 - 12
    • a +AT = solution annealed; +C = cold work hardened; +N = normalized; +NT = normalized and tempered; +P = precipitation hardened;
    • +QT = quenched and tempered; +WW = warm worked (see Annex B).
    • b Products made to these steel grades and these final heat treatment conditions do not support the Essential Safety Requirements of Directive 97/23/EC, unless other criteria are taken into account; see Annex 1, 7.5 of this directive.
    • c For rectangular cross-sections "d" will be replaced by "b"

    EN 10269 NiCr19Fe19Nb5Mo3 Proof strength

    Minimum 0,2 %-proof strength values at elevated temperature of steels and nickel alloys in delivery conditions which do not support the Essential Safety Requirements of Directive 97/23/ECb

    Material designation Heat treatment conditiona Diameter c d mm Minimum 0,2 %-proof strength Rp0,
    2 in MPa at a temperature (in °C) of:
    Name Number 50 100 150 200 250 300 350 400 450 500 550 600 650
    NiCr19Fe19Nb5Mo3 2.4668 +P d ≤ 160 - - - - - 880 - 865 - 860 - 860 -
    • a +AT = solution annealed; +C = cold work hardened; +N = normalized; +NT = normalized and tempered; +P = precipitation hardened; +QT = quenched and tempered; +WW = warm worked (see Annex B).
    • b Products made to these steel grades and these final heat treatment conditions do not support the Essential Safety Requirements of Directive 97/23/EC, unless other criteria are taken into account; see Annex 1, 7.5 of this directive.
    • c For rectangular cross sections "d" will be replaced by "b".
    • *) Values calculated by linear interpolation.

    EN 10269 NiCr19Fe19Nb5Mo3 Tensile Strength

    Minimum tensile strength values at elevated temperatures of nickel alloys in delivery conditions which do not support the Essential Safety Requirements of Directive 97/23/ECb

    Material designation Heat treatment conditiona Diameter c d mm Minimum tensile strength Rm
    in MPa at a temperature (in °C) of:
    Name Number 50 100 150 200 250 300 350 400 450 500 550 600 650
    NiCr19Fe19Nb5Mo3 2.4668 +P d ≤ 160 - - - - - - - - - - - - -
    • a +AT = solution annealed; +C = cold work hardened; +N = normalized; +NT = normalized and tempered; +P = precipitation hardened; +QT = quenched and tempered; +WW = warm worked (see Annex B).
    • b Products made to these steel grades and these final heat treatment conditions do not support the Essential Safety Requirements of Directive 97/23/EC, unless other criteria are taken into account; see Annex 1, 7.5 of this directive.
    • c For rectangular cross-sections "d" will be replaced by "b"

    EN 10269 NiCr19Fe19Nb5Mo3 Impact Energy

    Minimum impact energy (longitudinal direction) at low temperature of nickel alloys in delivery conditions which do not support the Essential Safety Requirements of Directive 97/23/ECb

    Material designation Heat treatment conditiona Diameter d d mm Minimum impact energy KV2 in J c
    (ISO-V test piece) at a test temperature in °C of:
    Name Number -270 -196 -160 -140 -120 -110 -100 -90 -80 -70 -60 -50 -40 -20 0 +20
    NiCr19Fe19Nb5Mo3 2.4668 +P d ≤160 - - - - - - - - - - - - - - - 12
    • a +AT = solution annealed; +C = cold work hardened; +N = normalized; +NT = normalized and tempered; +P = precipitation hardened; +QT = quenched and tempered; +WW = warm worked (see Annex B).
    • b Products made to these steel grades and these final heat treatment conditions do not support the Essential Safety Requirements of Directive 97/23/EC; see Annex 1, 7.5 of this directive.
    • c Average of 3 test results.
    • d For rectangular cross sections "d" will be replaced by "b"
    Specifications
    Surface Treatments
    Certifications
    About Us
    Questions? Contact us.
    Showcase of our Microsites.
    Satisfaction Survey

    survey

    TUVRheinland CRETIFIED

    © TorqBolt P(Ltd) · Built with in INDIA.