Our resistance wire(heating wire) has the characteristics of high rate of resistance, small resistance temperature coefficient and high use temperature. It has a good corrosion resistance at high temperature, low price and is particularly suitable for using in the atmosphere of sulfur and sulfide, so it is an ideal heating material used in industrial furnaces, household appliances and far-infrared devices.

Main characteristics of FeCrAl high resistance and heating alloys

Alloy Nomenclature / Performance		1Cr13Al4	0Cr25Al5	0Cr21Al6	0Cr23Al5	0Cr21Al4	0Cr21Al6Nb	0Cr27Al7Mo2
Main hemical 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		650	1250	1250	1250	1100	1350	1400
Resistivity at 20º C  (μ Ω · m)		1.25	1.42	1.42	1.35	1.23	1.45	1.53
Density  (g/cm 3 )		7.4	7.1	7.16	7.25	7.35	7.1	7.1
Thermal conductivity(KJ/m· h· º C)		52.7	46.1	63.2	60.2	46.9	46.1	45.2
Coefficient of lines expansion(α × 10-6/º C)		15.4	16	14.7	15	13.5	16	16
Melting point  (approx. ) (º C)		1450	1500	1500	1500	1500	1510	1520
Tensile strength  (N/mm 2 )		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
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
Micrographic  structure		Ferrite	Ferrite	Ferrite	Ferrite	Ferrite	Ferrite	Ferrite
Magnetic  properties		Magnetic	Magnetic	Magnetic	Magnetic	Magnetic	Magnetic	Magnetic