NH9.5 (Chromel T) Thermocouple Alloy

  • Alloy NMC5
  • Alloy SK
  • Alloy CA
  • Alloy HCM9.5 (Chromel TM)
  • Alloy NXM9 (Chromel KM)
  • Alloy NHC
  • Alloy HC9.5 (Chromel T)
  • Alloy HC9 (Chromel K)
  • Alloy NMtsAK2-2-1 (Alumel)
  • Alloy NMC2.5
  • Alloy NMC2
  • Alloy HMC1
  • Alloy NMMZ 38-2V
  • NKM alloy
  • Alloy NK0.2
  • Alloy HZ

    • Designation

    Name The value
    Designation GOST Cyrillic НХ9,5
    Designation GOST Latin HX9,5
    Transliteration NH95
    By chemical elements NiCr9,5
    Name The value
    Designation GOST Cyrillic Хромель Т
    Designation GOST Latin Xpomel T
    Transliteration Hromel T
    By chemical elements Crомель Te

    Description

    Material overview

    NH9.5 is a nickel-chromium thermocouple-alloy designation encountered in regional standards and legacy instrument documentation. Thermocouple materials are purchased as a matched system: alloy name, polarity, calibration relationship, tolerance class and operating environment must be confirmed together.

    Product forms and sourcing

    Requirements can be reviewed for bare wire, rod and other available semi-finished forms. Provide diameter, coil or straight-length requirement, surface condition, annealed or other condition, quantity and packaging. Insulated extension or compensating cable is a different product and must be identified separately.

    Evek LLC reviews each requirement against the requested grade, specification, form and quantity. Availability is confirmed during quotation; website text is not a stock or compliance guarantee.

    Specification and substitution

    Do not assume that a trade name or similar nickel-chromium composition establishes compatibility with a Type K, Type E or another thermocouple system. Thermoelectric response, mating leg, calibration limits and the governing standard control selection. Replacement material should be approved against the instrument specification.

    The purchaser remains responsible for material selection, design approval and confirmation that the specified material is suitable for the finished component and service environment.

    Information required for a quote

    Send the exact designation and standard, intended thermocouple pair, polarity if known, diameter, condition, quantity, temperature range, atmosphere, tolerance or calibration requirement, certificate and lot-traceability needs, packaging and U.S. delivery ZIP code.

    Related products and resources

    Review Chromel alloy products, thermocouple wire, nickel-chromium alloys, or contact Evek LLC for assistance with the requirement.

    Request a U.S. quote

    Evek LLC serves customers throughout the United States. Typical delivery is 2-3 weeks, subject to grade, specification, form, dimensions, quantity and availability.

    Contact Evek LLC with the complete requirement and U.S. delivery ZIP code.

    Standards

    Name Code Standards
    Non-ferrous metals, including rare, and their alloys В51 GOST 28873-90, GOST 492-2006
    Wire, steel, alloy В73 TU 14-4-1300-84
    Wire from nonferrous metals and their alloys В74 TU 48-21-172-72, TU 48-21-686-80, TU 48-21-733-83, TU 48-21-746-83, TU 48-21-877-89
    Bars В55 TU 48-21-63-72

    Chemical composition

    Standard C S P Mn Cr Si Ni Fe Cu As Al Sb Pb Bi Co Mg Ni+Co
    GOST 492-2006 ≤0.2 ≤0.01 ≤0.003 ≤0.3 9-10 ≤0.4 87.129-90.4 ≤0.3 ≤0.25 ≤0.002 ≤0.15 ≤0.002 ≤0.002 ≤0.002 0.6-1.2 ≤0.05 Rest
    Ni is the basis.
    According to GOST 492-2006, the total mass fraction of impurities is ≤ 1.40%.

    Mechanical properties

    Section, mm σU, MPa d5, % HB, MPa
    Bars in the state of delivery
    600-700 - 150-200
    1000-1100 ≥3.5 ≥300

    Description mechanical marks

    Name Description
    σU Limit short-term strength
    d5 Elongation after rupture
    HB Brinell hardness number

    Physical characteristics

    Temperature r, kg/m3 R, Mr. · m a, 10-6 1/°C
    20 8710 650 128

    A description of the physical symbols

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