0Cr21Al6 (W.Nr. 1.4767) | HB SPEICAL ALLOY

0Cr21Al6HB Special Alloy2021-12-24T15:46:23+08:00

0Cr21Al6 (W.Nr. 1.4767) is an iron-chromium-aluminium alloy for use at temperatures up to 1250℃.

Equivalent Grades

Trademark	GB	GOST	ASTM	UNS	DIN	W.Nr.	NF	BS	JIS	SS
–	0Cr21Al6	–	Ⅰ	–	CrAl20 5	1.4767	–	–	–	–

Chemical Composition, %

Alloy	C	Si	Mn	P	S	Cr	Ni	Al	Fe
0Cr21Al6	≤0.06	≤1.00	≤0.70	≤0.025	≤0.025	19.0-22.0	≤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)
≥600	≥15	≥12

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
1250	1500	7.16	1.42	0.45	13	14.0	Ferrite	Magnetic

Life Test

Test Temperature, ℃	Continuous Service Time Hours, ℃
1300	≥80

Temperature Factor of Resistivity

20℃	100℃	200℃	300℃	400℃	500℃	600℃	700℃	800℃	900℃	1000℃	1100℃	1200℃	1300℃
1.000	1.000	1.002	1.006	1.011	1.020	1.037	1.043	1.046	1.049	1.052	1.055	1.058	–

Available Products and Specifications

Rod, Bar, Wire and Forgings	GB/T 1234-2012, ASTM B603-01, DIN 17470-1984
Plate, Sheet and Strip	GB/T 1234-2012, ASTM B603-01, DIN 17470-1984
Pipe and Tube	–
Welding Product	–
Others	–

Features

High resistivity
Low temperature coefficient of electric resistance
High operating temperature
Good oxidation resistance under high temperature

Applications

0Cr21Al6 is typically used in industrial furnaces and home appliances.

Panel heaters
Infrared heaters
Warming plates
Irons
Ceramic pots
Cartridge heaters for liquid heating
Storage heaters
Ceramic heaters for cooking plates
Air guns
Hobby kilns
Radiators
Quartz tube heaters for space heating
Toasters
Toaster ovens
Grills
Industrial infrared dryers
Coils on molded ceramic fibre for cooking plates with ceramic hobs