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Thermocouple Type K Alumel Chromel Rod Stick Bar 6mm 8mm 9mm 10mm 12mm

  • Thermocouple Type K Alumel Chromel Rod Stick Bar 6mm 8mm 9mm 10mm 12mm
Place of Origin CHINA
Brand Name HUONA
Certification ISO9001
Model Number Type K
Minimum Order Quantity 20KG
Price Bargain
Packaging Details paper wrap+plywood case
Delivery Time 8-15 working days after payment confirmed
Payment Terms L/C,T/T,Western Union,MoneyGram
Supply Ability 30 tons per month

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Product Details
Name 0.5″ 12.7mm KP Chromel KN Alumel Thermocouple Type K Rod Stick 1000℃ Temperature Measurement Type Type K Rod （Chromel Alumel）
Size 0.5″ 12.7mm Length Coil Package/1 Meter/1.2 Meter/1.5 Meter(or Customized))
State Soft, Annealed/ Hard/ 1/2 Hard / 1/4 Hard Accuracy Class 1(Class A)
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Product Description

Thermocouple Type K Alumel / Chromel Rod / Stick / Bar 6mm 8mm 9mm 10mm 12mm

 

 

TYPE K (CHROMEL vs ALUMEL ) is used in oxidizing, inert or dry reducing atmospheres. It must be protected from sulfurous and marginally oxidizing atmospheres. It is reliable and has high accurate at high temperatures.

 

1. Chemical Composition

Material Chemical composition (%)
Ni Cr Si Mn Al
KP(Chromel) 90 10      
KN(Alumel) 95   1-2 0.5-1.5 1-1.5

 

2. Physical Properties and Mechnical Properties

Material

 

 

Density(g/cm3)

 

Melting point℃)

 

Tensile Strength(Mpa)

 

Volume resistivity(μΩ.cm)

 

Elongation rate (%)
KP(Chromel) 8.5 1427 >490 70.6(20℃) >10
KN(Alumel) 8.6 1399 >390 29.4(20℃) >15

 

3. EMF Value Range at Different Temperature

Material EMF value Vs Pt(μV)
100℃ 200℃ 300℃ 400℃ 500℃ 600℃
KP(Chromel) 2816~2896 5938~6018 9298~9378 12729~12821 16156~16266 19532~19676
KN(Alumel) 1218~1262 2140~2180 2849~2893 3600~3644 4403~4463 5271~5331

 

EMF value Vs Pt(μV)
700℃ 800℃ 900℃ 1000℃ 1100℃
22845~22999 26064~26246 29223~29411 32313~32525 35336~35548
6167~6247 7080~7160 7959~8059 8807~8907 9617~9737

 

 

Thermocouple Variety and Index
Variety Type Measurement Range(°C)
NiCr-NiSi K –200–1300
NiCr-CuNi E –200–900
Fe-CuNi J –40–750
Cu-CuNi T –200–350
NiCrSi-NiSi N –200–1300
NiCr-AuFe0.07 NiCr-AuFe0.07 –270–0

 

 

 

0.5″ 12.7mm KP Chromel KN Alumel Thermocouple Type K Rod Application

 

 

The characteristic of Type K is that it has strong anti-oxidation performance, and should be used continuously in an oxidizing and inert atmosphere. The long-term use temperature is 1000℃ and the short-term 1200 ℃. It is the most widely used among all thermocouples; (it cannot be used reducing gas atmosphere).

 

Thermocouple Working and Measuring Temperature Range:

 

Thermocouple Material Working temperature Range and Tolerence
Class I Class II
Index Anode Cathode Measuring termperature Tolerence Measuring termperature Tolerence
K NiCr10 NiAl2 -40℃-1000℃ ±1.5℃ or ±0.4%*T 40℃-1200℃ ±2.5℃ or 0.75%*T
T Cu CuNi40 -40℃-350℃ 40℃-350℃ ±1℃ or 0.75%*T
J Fe CuNi40 -40℃-750℃ 40℃-750℃ ±2.5℃ or 0.75%*T
E NiCr10 CuNi45 -40℃-800℃ 40℃-900℃
N NiCr14Si NiSi4Mg -40℃-1000℃ 40℃-1200℃ ±2.5℃ or 0.75%*T
R Pt-13%Rh Pt 0℃-1000℃ 0℃-600℃ ±1.5℃
S Pt-10%Rh 1000℃-1600℃ ±(1+0.003) 600℃-1600℃ 0.25%*T
B Pt-30%Rh Pt-6%Rh - - 600℃-1700℃ ±1.5℃ or 0.25%*T

 

 

 

 
 
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