0.05mm To 10mm FeCrAl Alloy Resistance Wire Used For Heating Elements (CrAl 25/5)

• Product Type: Wire
• Material: Iron Chrome Aluminum Wire
• Carbon Content: Low Carbon
• Mainly Usage: Heater, Resistor
• Transport Package: waterproof film, Weave bag, Wooden Case
• Specification: RoHS
• Model NO.: CrAl 25-5
• Trademark: TANKII
• Origin: Shanghai, China
• HS Code: 7223000000
• Production Capacity: 5000 tons/year

Product Description

0.05mm To 10mm FeCrAl Alloy Resistance Wire Used For Heating Elements (CrAl 25/5)

Heating Resistance Wire/China Producer

Nominal Analysis

20.00 Cr, 5.00 Al, Bal. Fe

Max contineous working temperature: 1250 º C.

Melting Temperature: 1500 º C

Electrical Resistivity: 1.4 ohm mm2/m

Has been used extensively as heating elements in industrial furnaces and electrical kilns.

Has less hot strength than Tophet alloys but much higher melting point.

Shanghai TANKII ALLOY MATERIAL Co., Ltd.

MOST PROFESSIONAL ALCHROME AND FECRAL ALLOY PRODUCER IN China

We also produce CrAl 14/4, CrAl 19/3 and other grade resistance wire for industrial demand.

Chemical Composition and Main Property of Fe-Cr-Al Resistance Alloy
Properties \ Grade		1Cr13Al4	0Cr25Al5	0Cr21Al6	0Cr23Al5	0Cr21Al4	0Cr21Al6Nb	0Cr27Al7Mo2
Main Chemical Composition (%)	Cr	12.0-15.0	23.0-26.0	19.0-22.0	22.5-24.5	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	4.2-5.0	3.0-4.2	5.0-7.0	6.0-7.0
	Re	opportune	opportune	opportune	opportune	opportune	opportune	opportune
	Fe	Bal.	Bal.	Bal.	Bal.	Bal.	Bal.	Bal.
							Nb0.5	Mo1.8-2.2
Max Continuous Service Temperature(oC)		950	1250	1250	1250	1100	1350	1400
Resisivity 20oC  (Ω mm2/m)		1.25 ± 0.08	1.42 ± 0.06	1.42 ± 0.07	1.35 ± 0.07	1.23 ± 0.07	1.45 ± 0.07	1.53 ± 0.07
Density(g/cm3)		7.4	7.1	7.16	7.25	7.35	7.1	7.1
Thermal Conductivity		52.7	46.1	63.2	60.2	46.9	46.1	45.2
(KJ/m@ h@ oC)
Coefficient of Thermal Expansion(α × 10-6/oC)		15.4	16	14.7	15	13.5	16	16
Approximate Melting Point( 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(%)		> 16	> 12	> 12	> 12	> 12	> 12	> 10
Section Variation		65-75	60-75	65-75	65-75	65-75	65-75	65-75
Shrink Rate (%)
Repeatedly Bend 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		no	≥ 80/1300	≥ 80/1300	≥ 80/1300	≥ 80/1250	≥ 50/1350	≥ 50/1350
Micrographic Structure		Ferrite	Ferrite	Ferrite	Ferrite	Ferrite	Ferrite	Ferrite
Magnetic Property		Magnetic	Magnetic	Magnetic	Magnetic	Magnetic	Magnetic	Magnetic