Haynes 188, Alloy 188, Udimet 188, Conicro 4023
Haynes 188 Alloy is a Cobalt-Nickel-Chromium-Tungsten Alloy that combines excellent high temperature strength with very good resistance to oxidizing environments up to 2000°F (1095°C).
HAYNES 188 Alloy is a solidsolution-strengthened material which combines excellent high temperature strength with good tabricability at room temperature. It is particularly effective for very long-term applications at temperatures of 1200°F (650°C) or more. It is stronger than nickel-base solid-solutionstrengthened alloys, and far stronger than simple nickel-chromium or iron-nickel-chromium heat-resistant alloys.
This can allow for significant section thickness reduction when it is substituted for these
materials.
Available Product Forms:
Plate, Sheet, and Bar
Specifications
Haynes 188 is covered by the following specifications:
UNS R30188
Rod, Bar, Wire and Forging Stock: AMS 5772
Plate, Sheet and Strip: AMS 5608
Welding Wire: AMS 5801
Chemical Composition
|
Cr |
Ni |
Co |
W |
La |
B |
C |
Fe |
Mn |
Si |
P |
S |
|
|
MIN |
20.0 |
20.0 |
– |
13.0 |
0.02 |
– |
0.05 |
– |
– |
0.2 |
– |
– |
|
MAX |
24.0 |
24.0 |
Balance |
16.0 |
0.12 |
0.015 |
0.015 |
3.0 |
1.25 |
0.5 |
0.02 |
0.015 |
