0Cr27Al7Mo2

0Cr27Al7Mo2 is a kind of super high temperature resistance heating alloy, this ferric iron-chromium-aluminium alloy’s working temperature up to 1400℃. This alloy is almost equal to Kanthal@APM and Х27Ю5Т (ГОСТ). It is widely made into spiral heating spring used in the high temperature heat treatment furnace, and it can be made heating elements used in the electric radiant tube heater.

Specifications

GB/T 1234-1995 (CN); GOST 10994 & GOST 12766/1-1990 (RU)

Product Forms

Wire, Bar, Strip, Sheet, Plate, Tube, Mesh, Conveyor belt, Radiant tube heater

Chemical Composition, %

Alloy	C	Si	Mn	P	S	Cr	Ni	Al	Mo	Fe
0Cr27Al7Mo2	≤0.05	≤0.40	≤0.20	≤0.025	≤0.025	26.5~27.8	≤0.60	6.0~7.0	1.8~2.2	Bal

Mechanical Properties (RT, Annealed)

Tensile Strength, Rm/MPa	Elongation, A/%		Hardness, HB
Tensile Strength, Rm/MPa	Dia. >3.00mm (for wire)	Dia. 0.10~3.00mm (for wire) and Th. >0.20 (for strip)	Hardness, HB
≤680	≥10	≥10	200~260

Physical Properties

Max Working Temperature, ℃	Melting Point, ℃	Density, g/cm3	Resistivity, μΩ·m, 20℃	Specific Heat, J/g·℃	Thermal Conductivity, KJ/m·h·℃	Average Coefficient of Linear Expansion, α×10-6/℃ （20~1000℃）	Micrographic Structure	Magnetic Properties
1400	1520	7.1	1.53	0.494	45.2	16.0	Ferrite	Magnetic

Life Test

Test Temperature, ℃	Continuous Service Time Hours, ℃
1350	≥50

Temperature Factor of Resistivity

20℃	100℃	200℃	300℃	400℃	500℃	600℃	700℃	800℃	900℃	1000℃	1100℃	1200℃	1300℃
1.000	0.992	0.986	0.981	0.978	0.976	0.974	0.972	0.970	0.969	0.968	0.968	0.967	0.967

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