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

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Changzhou DLX Alloy Co., Ltd.

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

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

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

ASTM	ANSI	IEC	DIN	BS	NF	JIS	GOST
(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)

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