• Model NO.：Thermocouple Cable
• Range of Application：Senior
• Certification：ISO9001
• Brand：Ohmalloy
• Diameter：AWG8
• Status：Bright or Oxidized
• Color：as Per Customers Request
• Transport Package：20kg,Coil, or DIN 125 or DIN 160 or DIN 250
• Trademark：OHMALLOY
• Origin：China(Shanghai)
• Production Capacity：50 Tons Per Month

MaterialChemical composition (%)NiCrSiMnAlKP(Chromel)9010   KN(Alumel)95 1-20.5-1.51-1.5

2. Physical properties and Mechnical properties

 

 

Material

 

 

Density(g/cm³)

 

Melting pointºC)

 

Tensile Strength(Mpa)

 

Volume resistivity(μΩ.cm)

 

Elongation rate (%)

KP(Chromel)8.51427>49070.6(20ºC)>10KN(Alumel)8.61399>39029.4(20ºC)>15

3. EMF Value range at different temperature

MaterialEMF value Vs Pt(μV)100ºC200ºC300ºC400ºC500ºC600ºCKP(Chromel)2816~28965938~60189298~937812729~1282116156~1626619532~19676KN(Alumel)1218~12622140~21802849~28933600~36444403~44635271~5331

 

EMF value Vs Pt(μV)700ºC800ºC900ºC1000ºC1100ºC22845~2299926064~2624629223~2941132313~3252535336~355486167~62477080~71607959~80598807~89079617~9737

4.The available thermocouple type and alloy material:

Name and code of alloy wiresPositiveNegativeNameCodeNameCodeNiCr10 (Chromel)KP

NiSi3 /(Alumel)

(China standard)

KN

NiAl/(Alumel)

(IEC standard)

KNNiCr14.2SiNPNiSi4NNNiCr10 (Chromel)EPCuNi45 (Constantan)ENFeJPCuNi45 (Constantan)JNCuTPCuNi45 (Constantan)TN

5.Thermocouple wire electromotive force (EMF) Tolerance:

Type T-40~350±0.5ºC or ±0.4%t±0.5ºC or ±0.4%-40~350±1.0ºC or ±0.75%t±1.0ºC or ±0.75%
ApplicationPayment and delivery