Bimetal strip with two layers(5J1480 strip)
(Common Name: Kanthal 135
,dimpty R80,Telcon 140
)
Composition
|
Grade
|
5J1480
|
|
High expansion layer
|
Ni22Cr3
|
|
Low expansion layer
|
Ni36
|
Chemical composition
(%)
|
Grade
|
C
|
Si
|
Mn
|
P
|
S
|
Ni
|
Cr
|
Cu
|
Fe
|
|
Ni36
|
≤
0.05
|
≤
0.3
|
≤
0.6
|
≤
0.02
|
≤
0.02
|
35~37
|
-
|
-
|
Bal.
|
|
Grade
|
C
|
Si
|
Mn
|
P
|
S
|
Ni
|
Cr
|
Cu
|
Fe
|
|
Ni22Cr3
|
≤
0.35
|
0.15~0.3
|
0.3~0.6
|
≤
0.02
|
≤
0.02
|
21~23
|
2.0~4.0
|
-
|
Bal.
|
Typical Physical properties
|
Density (g/cm3)
|
8.2
|
|
Electrical resistivity at 2
0
ºC
(ohm
mm
2
/m)
|
0.8
±5%
|
|
Thermal conductivity, λ/ W/(m*
ºC
)
|
22
|
|
Elastic Modulus,
E/ Gpa
|
147~177
|
|
Bending K / 10
-6
ºC
-1
(20~135
ºC
)
|
14.3
|
|
Temperature bending rate F/
(
20~130
ºC
)
10
-6
ºC
-1
|
26.2%
±5%
|
|
Allowable temperature (
ºC
)
|
-70~ 350
|
|
Linear temperature (
ºC
)
|
-20~ 180
|
Application:
The material is mainly in automatic control devices and instrumentation (eg: exhaust thermometers, thermostats, voltage regulators, temperature relay, automatic protection switching, diaphragm meters, etc.) make temperature control, temperature compensation, current limit, temperature indicator and other heat-sensitive components.
Feature:
The basic
characteristics of
Thermostat Bimetallic
is
bending deformation
with temperature changes
,
resulting in
a certain
moment
.
Thermostat Bimetallic Strip
expansion coefficient
is
different
from the
two or more layers
of
metal
or
alloy
along
the entire contact surface
firmly
bonded
,
having a
temperature-dependent
shape change
occurs
thermosensitive
functional composites
.
Wherein the
higher expansion
coefficient
of
the active
layer is
a layer
called a
low
coefficient of expansion
of the
layer is named
passive layer
.
Style of supply
|
Alloys Name
|
Type
|
Dimension
|
|
5J1480
|
Strip
|
W= 5~120mm
|
T= 0.1mm
|