• Changzhou DLX Alloy Co., Ltd.
    the purchase arrived well packaged good service from the provider
  • Changzhou DLX Alloy Co., Ltd.
    Хорошая цена, хорошее внимание к качеству продукта очень хорошо, короче говоря, все хорошо.
  • Changzhou DLX Alloy Co., Ltd.
    Я выкуплю его. Качество продукта очень хорошее. 
Contact Person : Jane
WhatsApp : +8618951210953

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

Place of Origin China
Brand Name DLX
Model Number Type K Thermocouple Wire
Minimum Order Quantity 5
Packaging Details Spool package with Carton box, Coil package with polybag
Delivery Time 5-21 days
Payment Terms L/C, T/T, Western Union, MoneyGram
Supply Ability 300 tons per month

Contact me for free samples and coupons.

WhatsApp:0086 18588475571

WeChat: 0086 18588475571

skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

Product Details
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%
Leave a Message
Product Description

Type N Thermocouple Wire NP (Ni-cr-si) NN (Ni-si-magnesium) 0


  • 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
Code Wires component of the thermocouple
  +Positive leg -Negative leg
N Ni-cr-si (NP) Ni-si-magnesium (NN)
K Ni-Cr (KP) Ni-Al(Si) (KN)
E Ni-Cr (EP) Cu-Ni<constantan> (EN)
J Iron (JP) Cu-Ni<constantan> (JN)
T Copper (TP) Cu-Ni<constantan> (TN)


  • ​Standards
(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/mm Long time Working temperature /ºC Short period Working temperature /ºC
0.3 700 800
0.5 800 900
0.8,1.0 900 1000
1.2,1.6 1000 1100
2.0,2.5 1100 1200
3.2 1200 1300


  • 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%


Type N Thermocouple Wire NP (Ni-cr-si) NN (Ni-si-magnesium) 1Type N Thermocouple Wire NP (Ni-cr-si) NN (Ni-si-magnesium) 2Type N Thermocouple Wire NP (Ni-cr-si) NN (Ni-si-magnesium) 3