NiCrSi-NiSiMg thermocouple wire(Type-N)

NiCrSi-NiSiMgthermocouple is the latest base metal thermocouple, developed to improve the drawbacks that the type K thermocouple has. The main chemical composition of positive leg Nicrosil(NP) is Ni: Cr: Si=84.4: 14.2: 1.4; negative leg Nisil (NN) is Ni: Si: Mg=95.5: 4.4: 0.1. Type N thermocouple can also be used in similar atmospheres that type K works, and the operating temperature range is -200~1300℃.Type N thermocouple improves the EMF drift and short-term EMF change, compared to type K thermocouple, and has a longer life than type K thermocouple. Therefore, in the industries where temperature control and measurement are especially critical, type N thermocouple has more advantages than other thermocouples as it hasa long life and stable thermal EMF.

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Specification
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Type	Chemical composition (%)
	Ni	Cr	Mn	Si	Mg
NP (NicrSi, Positive)	Bal	13.7–14.7	/	1.2–1.6	0.01
NN (NiSiMg, Negative)	Bal	0.02	/	4.2–4.6	0.5–1.5
Standard: IEC60584-1
Type	EMFVersus Pt.67(mV)
Type	100℃	200℃	400℃	600℃	800℃	1000℃
NP	1.755–1.813	3.910–3.976	8.880–8.959	14.307–14.433	20.012–20.180	32.313–32.525
NN	0.975–1.005	1.954–1.988	4.035–4.075	6.212–6.274	8.318–8.402	8.807–8.907
NP-NN	2.730–2.818	5.864–5.962	12.915–13.033	20.519–20.707	28.330–28.582	41.12–41.432
Physical property
Type	Density at 20℃ (g/cm³)	Melting point (℃)	Tensile Strength (Mpsa, Soft annealed condition in 20℃)	Elongation (%) (Soft annealed condition in 20℃)	Resistivity at 20℃ (μΩ·m)
NP	8.5	1410	≥620	≥25	0.97
NN	8.6	1340	≥550	≥30	0.33

Danyang Haiven Electric Heating Alloy Co., Ltd. is located in Lucheng Town, Danyang City, Jiangsu Province, China. The company was established in 2010 based on the original company "Danyang Huakang Electric Heating Alloy Co., Ltd." and has been in operation for over 40 years. Since its expansion, the company's total area has reached 30,000 square meters. The company has production lines for a series of products including FeCrAl, Kanthal, CuNi, NiCr, CuMn, Kangtong, Monel, Incoloy, Hastelloy, etc. We have equipped with advanced equipment and processes, capable of providing a complete product range from raw material melting, steel rolling, stretching, heat treatment to finished products and packaging. Standardization work and strict inspections run through every stage of the product. As Haiven people, we have always adhered to the goal of "building a first-class brand and a first-class enterprise". We uphold the spirit of "quality first, reputation foremost", providing customers with the highest quality products and competitive prices. Welcome new and old customers at home and abroad to visit and patronize. Let us achieve long-term win-win cooperation.