Type K Thermocouple Bare Wire IEC584-1/3
Product Description
1. Thermocouple Wire Introduction:NiCr-NiSi (Type K) thermocouple finds the widest use in all basemetal thermocouple,
at temperature above 500 °C.
The main chemical composition of positive leg
NiCr (KP) are Ni≈90% and Cr≈10%;
negative leg NiSi (KN) are Ni≈97% and Cr≈3%.
The operating temperature range is -200~1300°C(for short term) and
0~1100°C( for long term) .
Type K thermocouple has strong resistance to oxidation than other
base metal thermocouples.
It has high EMF against Platinum 67, excellent temperature
accuracy, sensitivity and stability, with a low cost.
It is recommended for oxidizing or inert atmospheres, but cannot be
used directly in the following case:
(1) Alternatively oxidizing and reducing atmosphere,
(2) Atmosphere with sulphur gases,
(3) Long time in vacuum,
(4) Low oxidizing atmosphere such as hydrogen and carbon monoxide
atmosphere.
SpecificationType K Temperature Range:
(1)Thermocouple grade wire, -200~1300ºC(for short term) and
0~1100ºC( for long term)
(2)Extension wire, 32 to 392F (0 to 200C)
Type K Accuracy :
Standard: +/- 1.5C or +/-0.4%t
Working temperature:
| Diameter/mm | Long time Working | Short period Working |
| temperature/°C | temperature/°C |
| 0.3 | 700 | 800 |
| 0.5 | 800 | 900 |
| 0.8,1.0 | 900 | 1000 |
| 1.2,1.6 | 1000 | 1100 |
| 2.0,2.5 | 1100 | 1200 |
| 3.2 | 1200 | 1300 |
Other product series :
FeCrAl Alloy: OCr15Al5,1Cr13Al4, 0Cr21Al4, 0Cr21Al6, 0Cr25Al5,
0Cr21Al6Nb,0Cr27Al7Mo2.
NiCr Alloy: Cr20Ni80,Cr30Ni70,Cr20Ni35,Cr20Ni30,Cr15Ni60.
CuNi Alloy: NC003,NC010,NC012,NC015,NC020,NC025,NC030,NC040,NC050,Constantan,6J8/11/12/13/.
Welding wire: ERNiCrMo-3/4/13,ERNiCrFe-3/7,ERNiCr-3/7,ERNiCu-7,ERNi-1, ER70S-6.
Thermocouple alloy: K,J,E,T,N, S,R,B,KX,JX,EX,TX,NX.
Inconel alloy: Inconel 600,601,617,X-750,625,690,718,825.
Incoloy alloy: Incoloy 800,800H,800HT,825,925.
Hastelloy alloy: HC-276,C-22,C-4,HB,B/2/3,X,N.
Monel Alloy: Monel 400,K500.
High-temperature alloy : A-286,Nimonic80A/90,GH131,GH1140,GH36,GH2706,GH2901,GH3625,GH3536,GH4169.
Precision alloy series: 1J33,3J01,3J9,4J29,4J32.4J33,Invar36,4J45.FeNi50.
Thermal spray alloy: Inconel 625,Ni95Al5,Monel400,45CT,HC-276,K500,Cr20Ni80.
