Thermocouple alloy

We provide a full range of high-performance alloy solutions, including resistance alloys, nickel-based alloys, titanium, copper, stainless steel and various specialty alloys.

Provide diversified product specifications: including rods, pipes, wires, strips and non-standard customized parts to meet the needs of different industrial applications.

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Extension & Compensation Cable

Jiangsu DZX Technology Co., Ltd. specializes in supplying high-quality thermocouple compensation wires and extension cables. The products cover KX, JX, EX and other models, with excellent signal transmission stability and temperature resistance. Direct sales from the factory, shipped from Jiangsu Province, providing customization of a variety of insulation materials (PVC, Teflon, fiberglass), and supporting rapid distribution across the country.

Differences Between Thermocouple Wire and Extension Wire

Feature	Thermocouple Wire	Extension Wire
Material	Same as Thermocouple Alloy	Matches only within the specified temperature range
Temp Change	High (some types up to 1,700°C)	Limited (usually up to 400°C)
Cost	Higher	Reduced
Purpose	Used for temperature sensing	Extends the temperature signal to instrumentation

Main Considerations When Choosing Thermocouple Extension Wires

Match thermocouple type: The extension wire must correspond to the thermocouple type (e.g., K, J, T).
Operating environment: Ensure that the insulation material is suitable for temperature, humidity, or chemical exposure conditions.
PVC: Flexible, general-purpose.
Fiberglass: High-temperature resistant.
PTFE (Teflon): Chemical and moisture resistant.
Wire gauge: Heavier gauges are needed for long distances or harsh environments to minimize signal loss.
Shielding: For environments with electrical interference, consider using shielded wire.
Accuracy: Verify whether the wire meets ASTM or IEC standards for accuracy.

Thermocouple Type	Compensating Wire Type	Usage	EMF Standard		Precision Grade		General Grade
Thermocouple Type	Compensating Wire Type	Usage	Temperature /℃	Value /μV	Tolerance μV	EMF Range μV	Tolerance μV	EMF Range μV
K	KX,KCA or KCB	G	-25	-968	±40	-924~-1012	±80	-880~-1 056
		G	100	4096	±40	4052~4140	±80	4 008~4 184
		H	-25	-968	±40	-924~-1012	±88	-880~-1 056
			100	4096		4052~4140		4 008~4 184
			200	8138		8094~8182		8 050~8 226
J	JX	G	-25	-1 239	±62	-1177~-1301	±123	-1 116~-1 362
		G	100	5269	±62	5207~5331	±123	5 146~5 392
		H	-25	-1239	±62	– 177~-1301	±123	-1 116~-1 362
			100	5269		5207~5331		5 146~5 392
			200	10779		10717~10841		10 656~10 902
E	EX	G	-25	-1432	±81	-1351~-1513	±138	-1 294~-1 570
		G	100	6 319	±81	6238~ 6400	±138	6 181~6 457
		H	-25	-1432	±81	-1351~- 1513	±138	-1 294~-1 570
			100	6319		6238~6400		6 181~6 457
			200	13421		13340~13502		13 283~13 559
T	TX	G	-25	-940	±30	-910~-970	±60	-1850
		G	100	4279	±30	4249~4309	±60	4189~4339
		H	-25	-940	±48	-892~-988
			100	4279		4231~4327
			200	9288		9240~9336
N	NX or NC	G	-25	-646	±43	-603~-689	±86	-560~-732
		G	100	2774	±43	2731~2817	±86	2 688~2 860
		H	-25	-646	±43	-603~-690	±86	-560~-732
			100	2774		2731~2817		2 688~2 860
			200	5913		5870~5956		5 827~5 999
SorR	SC or RC	G	100	646	±30	616~676	±60	586~706
		H	100	646	–	–	±60	586~706
		H	200	11441	–	–	±60	1.381~1 501

Applications

Aerospace: Monitoring engine components
Power plants: Measuring temperature in boilers or turbines
Medical equipment: Transmitting signals from sterilization equipment
HVAC systems: Connecting sensors to control units

Frequently Asked Questions (FAQ)

What is the difference between compensation wire and thermocouple wire?

The thermocouple wire is made of the same grade of alloy as the thermocouple and has extremely high temperature resistance (some models can reach 1700°C). It is used to make temperature sensing elements. The compensation wire only needs to match the characteristics within the specified temperature zone. The temperature resistance is usually up to 400°C and the cost is low. It is suitable for stably transmitting signals to the control room over long distances.

How to match the compensation wire model to the thermocouple?

How to choose the insulation sheath material of compensation wire?

What accuracy standard does the compensation wire perform?

Supplied according to precision grade H and ordinary grade G: K type -25℃ standard electromotive force -968μV, 100℃ is 4096μV, 200℃ is 8138μV; J type is 100℃ is 5269μV, 200℃ is 10779μV. The product complies with ASTM or IEC international accuracy standards and can provide proof of tolerance and EMF range.

In which industries are compensation wires mainly used?

Aerospace monitors engine components and hot end temperatures; electric energy is used for remote temperature measurement of thermal power, nuclear power boilers and gas turbines; medical pharmaceuticals are used for precise temperature control of sterilization cabinets and incubators; industrial HVAC is connected to central air conditioning and heat pump system temperature sensor signals to ensure system temperature measurement accuracy.

Thermocouple alloy

Extension & Compensation Cable

Frequently Asked Questions (FAQ)

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