Udimet 188（UNS R30188）
1.Composition(wt%)
|
C
|
Cr
|
Ni
|
Fe
|
W
|
La
|
Co
|
B
|
Mn
|
Si
|
|
0.05~0.15
|
20.0~24.0
|
20.0~24.0
|
≦3.0
|
13.0~16.0
|
0.02~0.12
|
balance
|
≦0.015
|
≦1.25
|
0.2~0.5
|
2.Physical Properties
|
Density
（g/cm3）
|
Melting point
（℃）
|
Specific heat capacity
（J/kg·℃）
|
Thermal expansion coefficient
（(21-93℃)/℃ ）
|
Electric resistivity
（Ω·cm）
|
|
9.14
|
1300-1330
|
405
|
11.9×10E-6
|
102×10E-6
|
3.Mechanical Properties
Instantaneous（bar，typical hot treatment）
|
Test temperature
℃
|
Tensile strength
MPa
|
Yield strength
(0.2yield point)MPa
|
Elongation
%
|
|
20
|
963
|
446
|
55
|
High temperature endurance properties（bar，typical hot treatment）
|
Test temperature
℃
|
Test time
h
|
Burst pressure
MPa
|
|
704
|
1000
|
240
|
|
760
|
1000
|
165
|
|
816
|
1000
|
110
|
|
871
|
1000
|
69
|
|
927
|
1000
|
41
|
|
982
|
1000
|
25
|
|
1038
|
1000
|
15
|
|
1093
|
1000
|
9
|
4.Applications
1.Used in industrial furnace parts.
2.Used in gas turbine components.
|
