0.5 Inch 12.7mm Kp Chromel Kn Alumel Thermocouple Type K Rod Stick 1000c Temperature Measurement

Model NO.
SP-K-12.7mm
Name
0.5 Inch 12.7mm Kp Chromel Kn Alumel Thermocouple
Type
Type K Rod (Chromel Alumel)
Length
Coil Package/1 Meter/1.2 Meter/1.5 Meter(or Custom
Transport Package
Plywood Case
Specification
12.7mm
Trademark
Ohmalloy/OEM
Origin
China
HS Code
75051200
Production Capacity
30 Tons Per Month
Reference Price
$ 22.68 - 25.20
Contact Us

Product Description

0.5 inch 12.7mm KP Chromel KN Alumel Thermocouple Type K Rod Stick 1000C Temperature Measurement
 

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/cm 3 )

 

Melting pointºC)

 

Tensile Strength(Mpa)

 

Volume resistivity(μΩ.cm)

 

Elongation rate (%)

KP(Chromel) 8.5 1427 >490 70.6(20ºC) >10
KN(Alumel) 8.6 1399 >390 29.4(20ºC) >15

 

3.  EMF Value Range at Different Temperature

Material EMF value Vs Pt(μV)
100ºC 200ºC 300ºC 400ºC 500ºC 600ºC
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)
700ºC 800ºC 900ºC 1000ºC 1100ºC
22845~22999 26064~26246 29223~29411 32313~32525 35336~35548
6167~6247 7080~7160 7959~8059 8807~8907 9617~9737

0.5 Inch 12.7mm Kp Chromel Kn Alumel Thermocouple Type K Rod Stick 1000c Temperature Measurement
 

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 1000ºC and the short-term 1200 ºC. 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 -40ºC-1000ºC ±1.5ºC or ±0.4%*T 40ºC-1200ºC ±2.5ºC or 0.75%*T
T Cu CuNi40 -40ºC-350ºC 40ºC-350ºC ±1ºC or 0.75%*T
J Fe CuNi40 -40ºC-750ºC 40ºC-750ºC ±2.5ºC or 0.75%*T
E NiCr10 CuNi45 -40ºC-800ºC 40ºC-900ºC
N NiCr14Si NiSi4Mg -40ºC-1000ºC 40ºC-1200ºC ±2.5ºC or 0.75%*T
R Pt-13%Rh Pt 0ºC-1000ºC 0ºC-600ºC ±1.5ºC
S Pt-10%Rh 1000ºC-1600ºC ±(1+0.003) 600ºC-1600ºC 0.25%*T
B Pt-30%Rh Pt-6%Rh - - 600ºC-1700ºC ±1.5ºC or 0.25%*T










 

 

Alloy