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

• Product Type: Rod
• Material: Chromel Alumel
• Carbon Content: C Free
• 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
• Model NO.: SP-K-12.7mm
• State: Soft, Annealed/ Hard/ 1/2 Hard / 1/4 Hard
• Surface: Oxidize/ Pickled/ Bright
• Accuracy: Class 1(Class a)
• Transport Package: Plywood Case
• Specification: 12.7mm
• Trademark: Ohmalloy/OEM
• Origin: China
• HS Code: 75051200
• Production Capacity: 30 Tons Per Month

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

 

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