1Cr13Al4 (W.Nr. 1.4725) | HB SPECIAL ALLOY

1Cr13Al4snihw2021-12-24T15:50:30+08:00

1Cr13Al4 (W.Nr. 1.4725) is an iron-chromium-aluminium alloy for use at temperatures up to 950℃.

Equivalent Grades

Trademark	GB	GOST	ASTM	UNS	DIN	W.Nr.	NF	BS	JIS	SS
Alkrothal 14	1Cr13Al4	Х13Ю4	Ⅳ	–	CrAl 14 4	1.4725	–	–	–	–

Chemical Composition, %

Alloy	C	Si	Mn	P	S	Cr	Ni	Al	Fe
1Cr13Al4	≤0.12	≤1.00	≤0.70	≤0.025	≤0.025	12.0-15.0	≤0.60	4.0-6.0	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)
≥580	≥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
950	1450	7.40	1.25	0.49	15	15.4	Ferrite	Magnetic

Life Test

Test Temperature, ℃	Continuous Service Time Hours, ℃
950	≥80

Temperature Factor of Resistivity

20℃	100℃	200℃	300℃	400℃	500℃	600℃	700℃	800℃	900℃	1000℃	1100℃	1200℃	1300℃
1.000	1.005	1.014	1.028	1.044	1.064	1.090	1.120	1.132	1.142	1.150	–	–	–

Available Products and Specifications

Rod, Bar, Wire and Forgings	GB/T 1234-2012, ASTM B603-01, DIN 17470-1984, GOST 12766.1-1990, GOST 12766.3-1990, GOST 12766.4-1990, GOST 12766.5-1990
Plate, Sheet and Strip	GB/T 1234-2012, ASTM B603-01, DIN 17470-1984, GOST 12766.2-1990
Pipe and Tube	–
Welding Product	–
Others	GOST 10994

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

Applications

Heating elements for single crystal diffusion furnaces
Powder metallurgy products
Sintering furnaces
Ceramic calciner
High temperature furnace elements up to 1300℃