Alchrome Alloy Resistance Wire (Working Temperature 1400º C)

Model NO.: CrAlMo 27-7-2 Material: Fecral PCD: N/A Hole: N/A Advantage 1: Long Working Life Trademark: TANKII Specification: ASTM B603, DIN 17470, JIS C2520, GB/T1234 HS Code: 7223000000 Product Type: Wire Carbon Content: Low Carbon ET: N/A Condition: Bright/Acid Pickling White/Oxidized/Golden Advantage 2: Uniform ohm per meter Transport Package: Plastic Film, Waterproof Paper, Wooden Case Origin: Shanghai Alchrome Alloy Resistance WireWorking Temperature 1400º;C)

Nominal Analysis

27.00 Cr, 7.00 Al, 2.00 Mo, Bal. Fe

Max contineous working temperature: 1400 C.

Wire diameter: 0.5~12mm

Melting Temperature: 1520 C

Electrical Resistivity: 1.53 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.

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

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