GH4145
1.Composition(wt%)
|
C
|
Cr
|
Ni
|
Fe
|
Mn
|
Si
|
S
|
AL
|
Ti
|
Co
|
Cu
|
Ni+Ta
|
|
≤0.08
|
14.0-17.0
|
≥70.0
|
5.0-9.0
|
≤1.0
|
≤0.5
|
≤0.01
|
0.4-1.0
|
2.25-2.75
|
≤1.0
|
≤0.5
|
0.7-1.2
|
2.Physical Properties
|
Density
( g/cm3)
|
Melting point
( ℃)
|
Rigid modulus
(GPa)
|
Elastic modulus
(GPa)
|
Electric resistivity
(Ω/cm)
|
|
8.28
|
1390-1430
|
75.8
|
212.4
|
0.000122
|
|
Thermal expansion coefficient
μ（20-100°C）m/(m•℃)
|
Magnetic permeability
（15.9KA/m）
|
Curie temperature
(℃)
|
Specific heat capacity
(J/g•℃)
|
Thermal conductivity
(W/m·K)
|
|
12.6
|
1．00035
|
-125
|
0.431
|
12
|
3.Mechanical Properties at room temperature
| Condition |
Tensile strength
(MPa)
|
Yield strength
(MPa)
|
Elongation
%
|
|
Solution treatment
|
1267
|
868
|
25
|
4.Characteristics
1.Cr-Ni-Iron alloy,precipitate hardening,adding with aluminum and titanium.
2.Good corrosion resistance and oxidation resistance until 980°C.
3.Good resistance to loose properties until 540°C.
4.Good forming and welding properties,excellent mechanical properties in the environment of low temperature.
5.Applications
1.Manufacturing springs and bolts working at high temperature; gas turbine rotor blade, impeller and other components.
2.Rocket engine thrust chamber.
3.he thrust reverser on the plane.
4.Large pressure vessel.
5.Elastic air seal piece, elastic seal moulding, rubber machinery electric razor blades.
|
