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W. Nr. 1.4767/Cr20Al5Re/Aluchrom Y Bright Electric Furnace Of Heating Thick Wire

Description

high resistance, low coefficient of electric resistance, high operating temperature, good corrosion resistance under high temperature

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UALLOY139 is a iron-chromium-aluminium alloy (FeCrAl alloy) characterized by high resistance, low coefficient of electric resistance, high operating temperature, good corrosion resistance under high temperature.It is suitable for use at temperatures up to 1300°C.


Typical applications for UALLOY139 are used in industrial electric furnace, electric ceramic cooktop.

Normal composition%

C

P

S

Mn

Si

Cr

Ni

Al

Fe

Other

Max

0.04

0.02

0.015

0.50

Max 0.4

20.0-21.0

Max 0.10

4.8-6

Bal.

/


Typical Physical properties

Density (g/cm3)

7.10

Electrical resistivity at 20(Ωmm2/m)

1.39

Conductivity coefficient at 20 (WmK)

13

Tensile Strength(Mpa)

637-784

Elongation

Min 16%

Harness(HB)

200-260

Section Variation Shrink Rate

65-75%

Repeatedly Bend Frequency

Min 5 times




Coefficient of thermal expansion

Temperature

 Coefficient of Thermal Expansion x10-6/

20 - 1000

16



Specific heat capacity

Temperature

 20

J/gK

0.49


Melting point ()

1500

Max continuous operating temperature in air ()

1300

Magnetic properties

magnetic


Style of supply

Alloys Name

Type

Dimension

UALLOY139W

Wire

D=0.03mm~8mm

UALLOY139R

Ribbon

W=0.4~40

T=0.03~2.9mm

UALLOY139S

Strip

W=8~250mm

T=0.1~3.0

UALLOY139F

Foil

W=6~120mm

T=0.003~0.1

UALLOY139B

Bar

Dia=8~100mm

L=50~1000


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