Haynes Series

Haynes 188

    Application: Chemical, pollution oil and gas industry

    Certification: ISO 9001:2008

    Color: Nickel Nature

Haynes 188 is a cobalt-based alloy  which possesses a unique combination of properties. It has excellent high  temperature strength and oxidation resistance to 2100°F (1150°C) combined  with good post-aging ductility.

Equivalent designations: Haynes 188, UNS R30188, GH5188(China), KCN22W(France), Alloy188

Place of Origin: Shanghai, China (Mainland)
Application: Chemical, pollution oil and gas industry
Product list:
1.Round bar, rod
2.Forgings, billet
3.Pipe and tube
Model Number: Haynes 188
Brand Name: SMC
Shape: Forging
Standard: ASTM ASME
Certification: ISO 9001:2008
Color: Nickel Nature
Packing: Common sea freight wooden case package/ Also can be customized
Payment: L/C,T/T

Delivery: Usually sample lead time is 7 days after payment has been confirmed.

Haynes 188 combines excellent high temperature strength with very good resistance to oxidizing environments up to 1095℃ for prolonged exposure, and excellent resistance to sulfate deposit hot corrosion. It also has excellent resistance to molten chloride salts, and good resistance to gaseous sulfidation.


1.Produces process

Raw material→ Smelting→ Drawing→ Rolling→ Annealing→ Finished product→ Detection→ Packing→ Shipping

2. Chemical composition

3. Physical properties

Yield Strength(Mpa): 446

Tensile Strength(Mpa): 963

Elongation: 55% 

4.Heat treatment

Normally annealed at 1177°C(2150°F) and rapid air-cooled or water-quenched


Because of its excellent strength, ductility and  oxidation resistance, Haynes 188 meets the critical high-temperature material  requirements for gas turbine applications as well as many of those in the  airframe, chemical and nuclear fields. Typical uses are as transition ducts,  combustor cans, spray bars, flame-holders and afterburner liners in jet engines.

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