Product Details

Specifications

iron chromium aluminium alloy wire
1,0.018-10MM,wire,ribbon
2,7-10 days lead time
3,wooden case package

STA iron-chromium-aluminum electrothermal resistance wire

The iron-chromium high electric resistance alloy 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 Fe-Cr-Al high resistance and heating alloys

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		650	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)		7.40	7.10	7.16	7.25	7.35	7.10	7.10
Thermal conductivity (KJ/m·h·ºC)		52.7	46.1	63.2	60.2	46.9	46.1	45.2
Coefficient of lines expansion(α×10^-6/ºC)		15.4	16.0	14.7	15.0	13.5	16.0	16.0
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
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