Description of HAYNES 188 Wire
Alloy 188 is a cobalt-base superalloy with a unique combination of high and oxidation resistance, along with adequate ductility after prolonged exposure to the 1400-1600 °F temperature range. Cobalt alloys have an inherent advantage over the nickel base grades in high-temperature creep. Alloy 188 is a solid solution strengthened by a 14% tungsten addition, and further by M6CC and M23C6 carbides.
Specifications of HAYNES 188 Wire
Chemical Composition (wt%)
Element
|
C
|
Mn
|
Si
|
Cr
|
Ni
|
W
|
La
|
B
|
Fe
|
Co
|
Wt%
|
0.05-0.15
|
≤1.25
|
0.20-0.50
|
20.0-24.0
|
20.0-24.0
|
13.0-16.0
|
0.02-0.12
|
≤0.015
|
≤3
|
Bal.
|
Properties
Item
|
Metric
|
English
|
Density
|
8.9 g/cm³
|
0.32 lbs/in³
|
Modulus of Elasticity
|
232 GPa
|
33.7 Mpsi
|
Electrical Resistivity
|
101.0 µohm*m
|
39.6 µohm*in
|
Thermal Conductivity
|
10.4 W/m*°K
|
72 BTU*in/hr*ft²*°F
|
Coefficient of thermal expansion
|
12.1 µm/(m*°C)
|
6.7 µin/(in*°F)
|
Melting Point
|
1330°C
|
2425°F
|
Applications of HAYNES 188 Wire
- Gas turbine operations
- Liners
- Combustors
- Transition ducts
- Flame holders
- Exhaust frames
Specification
Chemical Composition (wt%)
Element
|
C
|
Mn
|
Si
|
Cr
|
Ni
|
W
|
La
|
B
|
Fe
|
Co
|
Wt%
|
0.05-0.15
|
≤1.25
|
0.20-0.50
|
20.0-24.0
|
20.0-24.0
|
13.0-16.0
|
0.02-0.12
|
≤0.015
|
≤3
|
Bal.
|
Properties
Item
|
Metric
|
English
|
Density
|
8.9 g/cm³
|
0.32 lbs/in³
|
Modulus of Elasticity
|
232 GPa
|
33.7 Mpsi
|
Electrical Resistivity
|
101.0 µohm*m
|
39.6 µohm*in
|
Thermal Conductivity
|
10.4 W/m*°K
|
72 BTU*in/hr*ft²*°F
|
Coefficient of thermal expansion
|
12.1 µm/(m*°C)
|
6.7 µin/(in*°F)
|
Melting Point
|
1330°C
|
2425°F
|