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Type N Thermocouple Wire NP (Ni-cr-si) NN (Ni-si-magnesium)

Categories Thermocouple Bare Wire
Brand Name: DLX
Model Number: Type K Thermocouple Wire
Place of Origin: China
MOQ: 5
Payment Terms: L/C, T/T, Western Union, MoneyGram
Supply Ability: 300 tons per month
Delivery Time: 5-21 days
Packaging Details: Spool package with Carton box, Coil package with polybag
Product name: Thermocouple Bare Wire
Color: bright
Certificate: ISO9001
Temperature range: -200°C and 1260°C (-330°F to 2300°F)
EMF tolerance: +/- 2.2C or +/- .75%
Grade: NP/NN, Extension Grade NPX/NNX
Positive: Ni-cr-si
Negative: Ni-si-magnesium
other name: Nicrosil
Special Limits of Error: +/- 1.1C or 0.4%
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    Type N Thermocouple Wire NP (Ni-cr-si) NN (Ni-si-magnesium)



    • Thermocouple Wire

    Type N Thermocouple (Nickel-Chromium-silicon / Nickel-Silicon-Magnesium):

    The Type N thermocouple is composed of a nickel-14% chromium-1 1/2% silicon (+) wire versus a nickel 4 1/2% silicon-1/10% magnesium (-) wire. The Type N thermocouple is the newest addition to the ISA family. It was developed to be used under the same conditions as a Type K.

    Type N should be used in oxidizing or inert atmospheres with a service temperature range between -200°C and 1260°C (-330°F to 2300°F). The addition of silicon and chromium makes this type of thermocouple more resistant to Green-Rot and less drifting when compared to a Type K.

    The negative element, or NN, of a Type N thermocouple can be described by any of the following names: Nisil, nickel-silicon, or, HAI-NN1. The positive element, or NP, of a Type N thermocouple can be described by any of the following names: Nicrosil, nickel-chromium-silicon, or HAI-NP1.



    • Thermocouple Wire
    CodeWires component of the thermocouple
    +Positive leg-Negative leg
    NNi-cr-si (NP)Ni-si-magnesium (NN)
    KNi-Cr (KP)Ni-Al(Si) (KN)
    ENi-Cr (EP)Cu-Ni<constantan> (EN)
    JIron (JP)Cu-Ni<constantan> (JN)
    TCopper (TP)Cu-Ni<constantan> (TN)


    • ​Standards
    ASTMANSIIECDINBSNFJISGOST
    (American Society for Testing and Materials) E 230(American National Standard Institute) MC 96.1(European Standard by the International Electrotechnical Commission 584)-1/2/3(Deutsche Industrie Normen) EN 60584 -1/2(British Standards) 4937.1041, EN 60584 - 1/2(Norme Française) EN 60584 -1/2 - NFC 42323 - NFC 42324(Japanese Industrial Standards) C 1602 - C 1610(Unification of the Russian Specifications) 3044

    Detailed Parameter of thermocouple wire

    Working Temperature Range


    Diameter/mmLong time Working temperature /ºCShort period Working temperature /ºC
    0.3700800
    0.5800900
    0.8,1.09001000
    1.2,1.610001100
    2.0,2.511001200
    3.212001300


    • Size range

    Wire: 0.12 to 8.0 mm.


    • Application of thermocouple:

    • Heating - Gas burners for ovens

    • Cooling - Freezers

    • Engine protection - Temperatures and surface temperatures

    • High temperature control - Iron casting


    • Type N Temperature Range:
    • Maximum continuous operating temperature: up to 2,300F (1,260C)

    • Short term use: 2,336F (1,280C)

    • Thermocouple grade wire, -454 to 2300F (-270 to 1,260C)

    • Extension wire, 32 to 392F (0 to 200C)

    • Type N Accuracy (whichever is greater):
    • Standard: +/- 2.2C or +/- .75%
    • Special Limits of Error: +/- 1.1C or 0.4%


    Buy Type N Thermocouple Wire NP (Ni-cr-si) NN (Ni-si-magnesium) at wholesale prices
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