Haynes Alloy 188 Udimet 188 Round bar Supplier

Product Detail

Common Trade Names:Haynes 188, Alloy 188, GH5188, UNS R30188

Hayness 188 (Alloy 188)is a cobalt-base alloy with excellent high -temperature strength and good oxidation resistance to 2000°F (1093°C). The high chromium level coupled with small additions of lanthanum produce an extremely tenacious and protective scale. The alloy also has good sulfidation resistance and excellent metallurgical stability as displayed by its good ductility after prolonged exposure to elevated temperatures. Good fabricability and weldability combine to make the alloy useful in gas turbine applications such as combustors, flame holders,liners and transition ducts.

Alloy 188 Chemical Composition
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 bal ≦ 0.015 ≦ 1.25 0.2 0.5
Alloy 188 Physical properties
Melting point
Specific heat capacity
Thermal expansion coefficient
((21-93℃)/℃ )
Electric resistivity
9.14 1300-1330 405 11.9×10E-6 102×10E-6
Alloy 188 Mechanical Properties

 Instantaneous(bar,typical hot treatment)

Test temperature
Tensile strength
Yield strength
(0.2yield point)MPa
20 963 446 55

Alloy 188  Standards and Specifications

AMS 5608, AMS 5772, 

Bar/Rod Wire  Strip/Coil Sheet/Plate
AMS 5608 
AMS 5772   

Alloy 188 Available Products in Sekonic Metals

Inconel 718 bar,inconel 625 bar

Alloy 188 Bars & Rods

Round bars/Flat bars/Hex bars,     Size From 8.0mm-320mm, Used for bolts,fastners and other spare parts

welding wire and spring wire

Alloy 188 welding wire

Supply in welding wire and spring wire in coil form and cut length.

Sheet & Plate

Alloy 188 sheet & plate

Widths up to 1500mm and lengths up to 6000mm,Thickness from 0.1mm  to 100mm.

Alloy 188 seamless tube

Standards size and  customized dimension can be produced by us with small tolerance

inconel strip,invar stirp,kovar stirp

Alloy 188 strip & coil

Soft condition and hard condition with AB bright surface, width up to 1000mm

Why Haynes 188 ?

• Strength and oxidation resistant to 2000°F
• Good post-aging ductility
• Resistant to sulfate deposit hot corrosion

Haynes 188 Application field:

Gas turbine engine combustor cans, spray bars, flame-holders and afterburner liner

  • Previous:
  • Next:

  • Write your message here and send it to us