AMS 5772 Cobalt Alloy 188 Datasheet

Buy AMS 5772 Cobalt Alloy 188 at factory price. Haynes 188 cobalt-nickel-chromium-tungsten alloy. Excellent high-temperature strength to 2000°F. Very good oxidation resistance. Excellent sulfate deposit hot corrosion resistance. Combustion cans, transition ducts, afterburner. ISO 9001 & AS 9120B certified. Fast delivery.

Delivery :

FOB

minimum order :

10 kilograms

Supply Ability :

5000kilograms / Month

Stock Time :

7-10Day

Country of Origin :

CHINA

Quantity :

Contact Now

ZYTC Alloy is an ISO 9001 and AS 9120B certified superalloy manufacturer and supplier, offering AMS 5772 Cobalt Alloy 188 at factory-direct prices with full material traceability and fast global delivery.

AMS 5772 specification covers a corrosion- and heat-resistant cobalt-base alloy (Alloy 188 / Haynes 188 / UNS R30188) in the form of bars, forgings, flash welded rings, and stock for forging or flash welded rings.

Alloy 188 is a cobalt-nickel-chromium-tungsten alloy that combines excellent high-temperature strength with very good resistance to oxidizing environments up to 1095°C (2000°F) for prolonged exposures, and excellent resistance to sulfate deposit hot corrosion.

It is readily fabricated and formed by conventional techniques. Other attractive features include excellent resistance to molten chloride salts and good resistance to gaseous sulfidation.

If you cannot find the product you are looking for, please feel free to contact us.

Product Forms & Availability – Cobalt Alloy 188 (UNS R30188 / Haynes 188)

Bar, Forgings & Rings (AMS 5772 – Solution Heat Treated)

Product Form	Size Range	Condition
Round Bar	Φ3mm – 500mm	Solution heat treated (2125-2175°F)
Forgings	Custom configurations	Solution heat treated
Flash Welded Rings	Custom diameters	Solution heat treated
Forging Stock	Any size	Solution heat treated

Additional Alloy 188 Product Forms

Product Form	Specification	Availability
Sheet, Strip & Plate	AMS 5608	Available
Wire	AMS 5801	Available
Welding Wire	AMS 5801	Available

For all stock availability, contact Sales.

Specifications – Cobalt Alloy 188

Specification	Product Form	Condition
AMS 5772	Bars, forgings, rings	Solution heat treated
AMS 5608	Sheet, strip, plate	Solution heat treated
AMS 5801	Wire	Solution heat treated
UNS R30188	Unified numbering system	–
Haynes® 188	Trade name	–

Applications

Alloy 188 combines properties which make it suitable for a variety of fabricated component applications in the aerospace industry. It is widely used in established military and commercial gas turbine engines for combustion cans, transition ducts, flame holders, liners, and afterburner components

Heat Treatment Summary – Quick Reference

Condition	Temperature	Cooling	Purpose
Solution heat treat	2125 – 2175°F (1163 – 1191°C)	Rapid cool / water quench	Optimal properties
Annealing (below solution temp)	Not recommended	–	Causes carbide precipitation

Chemical Composition

Chemical Composition (Weight %)	Alloy 188 Specification
Cobalt (Co)	Balance (approx. 42%)
Chromium (Cr)	20.0 - 24.0
Nickel (Ni)	20.0 - 24.0
Tungsten (W)	13.0 - 16.0
Lanthanum (La)	0.02 - 0.12
Iron (Fe)	3.0 max.
Manganese (Mn)	1.25 max.
Silicon (Si)	0.20 - 0.50
Carbon (C)	0.05 - 0.15
Boron (B)	0.015 max.
Phosphorus (P)	0.020 max.
Sulfur (S)	0.015 max.

Physical Properties	Metric	Imperial
Density	8.98 g/cm³	0.324 lb/in³
Modulus of Elasticity (RT)	232 GPa	33.7 × 10³ ksi
Melting Range	1300 - 1360°C	2370 - 2480°F
Electrical Resistivity	101 µΩ·cm	39.6 µΩ·in
Thermal Conductivity (RT)	10.4 W/m·K	72 BTU·in/hr·ft²·°F

Mechanical Properties (Bar – Solution Annealed)	Metric	Imperial
Tensile Strength (min.)	862 MPa	125 ksi
Yield Strength (0.2% offset, min.)	379 MPa	55 ksi
Elongation (min.)	45%	45%
Hardness	≤302 HB	≤302 HB

Factory Price – AMS 5772 Cobalt Alloy 188 Bar (UNS R30188 / Haynes 188)

Indicative factory pricing (FOB China):

Diameter Range	Product Form	Condition	Price (USD/kg)
Φ3mm – 25mm	Round Bar	Solution heat treated	$80 – $150
Φ25mm – 50mm	Round Bar	Solution heat treated	$75 – $140
Φ50mm – 100mm	Round Bar	Solution heat treated	$70 – $130
Φ100mm – 250mm	Round Bar	Solution heat treated	$65 – $120
Φ250mm – 500mm	Round Bar	Solution heat treated	$60 – $110
Forging Stock	Any size	Solution heat treated	Please inquire

Volume discounts available for orders above 500 kg. Custom sizes and specifications available – contact us for a firm quote.

Delivery Lead Times (after pre-payment confirmation)

Stock Status	Delivery Time
Products in stock	Within 3 days
Raw material in stock	Within 10 days
Re-melting required	15 – 25 days

Contact ZYTC Alloy Today

Request a quote for AMS 5772 Cobalt Alloy 188 (UNS R30188 / Haynes 188) – Cobalt-Nickel-Chromium-Tungsten Alloy – High Strength to 2000°F – Excellent Oxidation & Hot Corrosion Resistance . Please provide:

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