0Cr24Al6RE (HRE) | HB SPECIAL ALLOY

0Cr24Al6RE is a ferric FeCrAl high resistance heating alloy for using at temperature up to 1400℃. This alloy is almost equal to Kanthal APM, and in China called it HRE. HRE is mostly made into resistance heating wire/ribbon used in the high temperature furnace. The alloy is characterized by high resistivity and very good oxidation resistance.

Equivalent Grades

Trademark	GB	GOST	ASTM	UNS	DIN	W.Nr.	NF	BS	JIS	SS
Kanthal APM HRE	0Cr24Al6RE	–	–	–	–	–	–	–	–	–

Chemical Composition, %

Alloy	C	Si	Mn	P	S	Cr	Ni	Al	Fe	Other
0Cr24Al6Re	≤0.05	≤0.40	≤0.20	≤0.025	≤0.02-	22.5-26.0	≤0.60	5.0-7.0	Bal	*

Mechanical Properties (RT, Annealed)

Tensile Strength, Rm/MPa	Elongation, A/%
Tensile Strength, Rm/MPa	Dia. >3.00mm (Wire) Thk. >0.20mm (Strip)	Dia. 0.10-3.00mm (Wire) Thk. ≤0.20mm (Strip)
≥680	≥12	≥10

Physical Properties

Max Working Temp., ℃	Melting Point, ℃	Density, g/cm3	Resistivity, μΩ·m 20℃	Specific Heat, J/(g•K)	Thermal Conductivity, W/(m•K) 20℃	Average Coefficient of Thermal Expansion,α×10-6/℃ 20-1000℃	Micrographic Structure	Magnetic Properties
1400	1520	7.10	1.48	0.49	13	16.0	Ferrite	Magnetic

Life Test

Test Temperature, ℃	Continuous Service Time Hours, ℃
1350	≥80

Temperature Factor of Resistivity

20℃	100℃	200℃	300℃	400℃	500℃	600℃	700℃	800℃	900℃	1000℃	1100℃	1200℃	1300℃
1.000	0.995	0.993	0.990	0.988	0.986	0.984	0.982	0.980	0.978	0.976	0.976	0.975	0.975

Available Products and Specifications

Rod, Bar, Wire and Forgings	GB/T 1234-2012
Plate, Sheet and Strip	GB/T 1234-2012
Pipe and Tube	–
Welding Product	–
Others	–

Features

High resistivity
Low temperature coefficient of electric resistance
High working temperature
Excellent surface oxidation resistance under high temperature as well as in corrosive atmosphere
The unique combination of excellent oxidation properties and form stability contributes to long element service life