Haynes 188 Cobalt Based Alloy

Haynes 188 Cobalt Based Alloy
Haynes 188 Cobalt Based Alloy
Haynes 188 Cobalt Based Alloy
Haynes 188 Cobalt Based Alloy
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Cobalt-nickel-chromium-tungsten alloy

  • 5772
Haynes 188 Cobalt Based Alloy
Physical and Mechanical Properties
Density
9.09g/cm³
Melting point
1300-1360°C
Tensile strength
860MPa
Yield strength
380MPa
Elongation
45%
Product Form and Standard Specification
Bar
AMS 5772
Plate
AMS 5608
Wire
AMS 5801
Forging
AMS 5772

Haynes 188 (GH5188) is a Co-Ni-Cr based solid solution strengthened deformation superalloy, designed for high-temperature environments up to 1100℃. Its excellent high-temperature performance and weldability make it widely used in high-temperature components within the aerospace and energy industries. GH5188 not only boasts strong mechanical properties but also performs exceptionally well in high-temperature and corrosive environments, maintaining superior operational performance under harsh conditions.

Features
  • Excellent high-temperature strength: Maintains mechanical integrity and stability under extreme heat, making it ideal for turbine components and engine systems.
  • Outstanding oxidation and corrosion resistance: Performs reliably in oxidizing atmospheres and chemically corrosive media, ensuring long-term durability.
  • Superior wear resistance: High durability under friction and wear reduces maintenance frequency and extends equipment service life.
Application
  • Aerospace: Used in high-temperature engine components such as turbine blades and combustion chambers, ensuring reliable aircraft performance.
  • Energy sector: Plays a key role in gas turbines and steam turbines, contributing to improved energy conversion efficiency.
  • Industrial manufacturing: Applied in mold and tool manufacturing, where its wear resistance enhances the lifespan and productivity of precision equipment.
Chemical compositions
Element Min. % Max. %
Ni 20 24
Cr 20 24
Fe - 3
W 13 16
Cu - 0.07
Co Bal
C 0.05 0.15
Mn - 1.25
Si 0.2 0.5
S - 0.15
P - 0.02
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