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NiCr-NiSi thermocouple wire(Type-K)

NiCr-NiSi thermocouple wire(Type-K)

NiCT-NiSi (Type K) thermocouple finds the widest use in all basemetal thermocouple, at temperature above 500C. The main chemical composition of positive leg NiCr (KP) is Ni≈90% and Cr≈10%: negative leg NiSi (KN) is Ni≈97% and Cr≈3%. The operating temperature range is -200-1300 C (for short term)
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NiCT-NiSi (Type K) thermocouple finds the widest use in all basemetal thermocouple, at temperature above 500C. The main chemical composition of positive leg NiCr (KP) is Ni≈90% and Cr≈10%: negative leg NiSi (KN) is Ni≈97% and Cr≈3%. The operating temperature range is -200-1300 C (for short term) and 0-1100 C ( for long term). TYPE AND MAIN CHENICAL COMPOSITION(%) Type Chemical composition% Ni Cr Mn Si Al NiCr KP 90 10 / / / NiSi KN 97 / / 3 / Standard:IEC60584-1 Type EMF Versus Pt.67(mV) 100℃ 200℃ 400℃ 600℃ 800℃ KP 2.868-2.886 5.937-6.017 12.729-12.821 19.532-19.676 26.064-26.246 KN 1.224-1.256 2.140-2.180 3.600-3.644 5.271-5.331 7.080-7.160 KP-KN 4.050-4.187 8.077-8.197 16.329-16.465 24.803-25.007 33.144-33.46 Physical property Type Desinty at 20℃ Melting point Tensile Strength(Soft annealed condition in 20℃) Elongation(Soft annealed condition in 20℃) Resistivity at 20℃ KP 8.6 1427 ≥490 ≥10 0.71 KN 8.6 1360 ≥390 ≥15 0.3

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