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KP KN Chromel Alumel K Type Bare Thermocouple Wire 20AWG

Categories Bare Thermocouple Wire
Brand Name: OHMALLOY/OEM
Model Number: SP-K-B
Certification: ISO9001:2018
Place of Origin: China
MOQ: 5KG
Payment Terms: L/C, T/T, , MoneyGram,Paypal
Supply Ability: 30 tons per month
Delivery Time: 5-18 working days after payment confirmed
Packaging Details: Coil+plywood case
Name: K Type Thermocouple Bare Wire
Size: 8AWG(3.2mm)/16AWG(1.29mm)/20AWG(0.8mm)
Shape: Round Wire
Surface: Bright
Accuracy: Class 1
Package: Coil+plywood Case
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KP KN Chromel Alumel K Type Bare Thermocouple Wire 20AWG

Type K Thermocouple


TYPE K (CHROMEL vs ALUMEL ) is used in oxidizing, inert or dry reducing atmospheres. Exposure to vacuum limited to short time periods. Must be protected from sulfurous and marginally oxidizing atmospheres. Reliable and accurate at high temperatures.


1. Chemical Composition


MaterialChemical composition (%)
NiCrSiMnAl
KP(Chromel)9010
KN(Alumel)951-20.5-1.51-1.5

2. Physical properties and Mechnical properties



Material


Density

(g/cm3)


Melting point℃)


Tensile Strength

(Mpa)


Volume resistivity(μΩ.cm)


Elongation rate (%)


Diameter tolerance(mm)

KP(Chromel)8.51427>49070.6(20℃)>10+/- 0.02
KN(Alumel)8.61399>39029.4(20℃)>15+/- 0.02

3. EMF Value range at different temperature


MaterialEMF value Vs Pt(μV)
100℃200℃300℃400℃500℃600℃
KP(Chromel)2816~28965938~60189298~937812729~1282116156~1626619532~19676
KN(Alumel)1218~12622140~21802849~28933600~36444403~44635271~5331

EMF value Vs Pt(μV)
700℃800℃900℃1000℃1100℃
22845~2299926064~2624629223~2941132313~3252535336~35548
6167~62477080~71607959~80598807~89079617~9737

Quality KP KN Chromel Alumel K Type Bare Thermocouple Wire 20AWG for sale
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