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Fecral Electrical 0Cr25Al5 Heat Resistance Wire For Thermocouple Protection Tube

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Fecral Electrical 0Cr25Al5 Heat Resistance Wire For Thermocouple Protection Tube

Country/Region	china
City & Province	changzhou jiangsu
Categories	Structural Steel

Product Details

FECRAL alloy 0Cr25Al5 heating resistance wire

FeCrAl alloy has the characteristic of high resistivity,low temperature resistance coefficient,high operating temperature,good anti-oxidation and anti-corrosion under high temperature.

It is widely used in industrial furnace, household appliances, industry furnace, metallurgy, machinery, aircraft, automotive, military and other industries producing heating elements and resistance elements.

In thermocouple protection tubes, the 0Cr25Al5 resistance wire is commonly utilized as the thermal sensitive part, forming a thermocouple with another metal alloy (such as platinum-rhodium alloy), used to measure temperature variations in high-temperature environments.

Stability

The 0Cr25Al5 resistance wire exhibits stable resistance characteristics in high-temperature environments, ensuring the accuracy and reliability of the thermocouple.

Corrosion Resistance

This resistance wire boasts excellent corrosion resistance, capable of resisting corrosion from various chemical environments, thereby extending the lifespan of the thermocouple.

High-Temperature Measurement

The 0Cr25Al5 resistance wire can operate stably at high temperatures, suitable for measuring temperature variations in high-temperature environments, applicable in fields such as steelmaking and chemical production.

Fast Response

This resistance wire features a fast response characteristic, capable of quickly responding to temperature changes and providing real-time temperature measurement data.

Size dimension range:

Wire: 0.01-10mm

Ribbons: 0.05*0.2-2.0*6.0mm

Strip: 0.05*5.0-5.0*250mm

Bar:10-50mm

FeCrAl alloy series: OCr15Al5,1Cr13Al4, 0Cr21Al4, 0Cr21Al6, 0Cr23Al5, 0Cr25Al5, 0Cr21Al6Nb,0Cr27Al7Mo2, and etc.

Alloy Nomenclature Performance		1Cr13AL4	0Cr25Al5	0Cr21AL6	0Cr23Al5	0Cr21Al4	0Cr21Al6Nb	0Cr27Al7Mo2
Main Chemical composition	Cr	12.0-15.0	23.0-26.0	19.0-22.0	20.5-23.5	18.0-21.0	21.0-23.0	26.5-27.8
	Al	4.0-6.0	4.5-6.5	5.0-7.0	4.2-5.3	3.0-4.2	5.0-7.0	6.0-7.0
	Re	opportune	opportune	opportune	opportune	opportune	opportune	opportune
	Fe	Rest	Rest	Rest	Rest	Rest	Rest	Rest
							Nb0.5	Mo1.8-2.2
Max. continuous service temp. of element(°C)		950	1250	1250	1250	1100	1350	1400
Resistivity at 20ºC(μΩ·m)		1.25	1.42	1.42	1.35	1.23	1.45	1.53
Density(g/cm3)		7.4	7.1	7.16	7.25	7.35	7.1	7.1
Thermal conductivity(KJ/m·h·ºC)		52.7	46.1	63.2	60.2	46.9	46.1	--
Coefficient of lines expansion(α×10-6/ºC)		15.4	16	14.7	15	13.5	16	16
Melting point approx.( ºC)		1450	1500	1500	1500	1500	1510	1520
Tensile strength(N/mm2)		580-680	630-780	630-780	630-780	600-700	650-800	680-830
Elongation at rupture(%)		>16	>12	>12	>12	>12	>12	>10
Variation of area(%)		65-75	60-75	65-75	65-75	65-75	65-75	65-75
Repeat Bending frequency(F/R)		>5	>5	>5	>5	>5	>5	>5
Hardness(H.B.)		200-260	200-260	200-260	200-260	200-260	200-260	200-260
continuous service time(Hours/ ºC)		--	≥80/1300	≥80/1300	≥80/1300	≥80/1250	≥50/1350	≥50/1350
Micrographic structure		Ferrite	Ferrite	Ferrite	Ferrite	Ferrite	Ferrite	Ferrite
Magnetic properties		Magnetic	Magnetic	Magnetic	Magnetic	Magnetic	Magnetic	Magnetic