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Haynes 188 High Nickel Alloys Forgings AMS 5772 CoCr22NiW
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|Equal Grades||UNS R30188, GH5188, Udimet 188, 2.4683||Spec||AMS 5608, AMS5772|
|Forms Of Supply||Bar, Ring, Wire, Strip, Sheet, Plate, Tube, Pipe, Capillary||China Grade||GH5188(GH188)|
|EN Designation||CoCr22NiW||Product Name||High Nickel Alloys|
nickel based alloys,
cobalt based alloy
Haynes 188 Nickel Cobalt Alloy with Excellent High-Temperature Strength
HAYNES 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 for prolonged exposures, and excellent resistance to sulfate deposit hot corrosion. It is readily fabricated and formed by conventional techniques, and has been used for cast component. Other attractive features include excellent resistance to molten chloride salts, and good resistance to gaseous sulfdation.
Heat Treatment of HAYNES 188
HAYNES 188 is furnished in the solution heat treated condition. Solution heat-treated at 1163-1191°C and rapidly cooled or water quenched for optimal properties. Annealing at temperatures below the solution heat-treating temperature will produce some carbide precipitation inside and may affect the alloy’s properties.
|Chemical Composition Limits|
|Haynes 188||0.05-0.15||1.25 max||0.20-0.50||0.02 max||0.015 max||20.0-24.0||20.0-24.0||13.0-16.0||0.02-0.12||0.015||3.0 max||Bal|
Forms and Sizes of Supply at XUNSHI
- Round bar: Φ4~Φ300mm
- Cold rolled sheet: thickness 0.5-4mm, width: 500-1200mm
- Hot rolled sheet/plate: thickness 4-40mm, widht: 500-1200mm
- Cold rolled strip: thickness: thickness: 0.05-1mm, width: 10-400mm
- Capillary: min. O. D.:0.8mm, wall thickness: 0.05mm
- Forged ring: O.D. less than 300mm
- Rolled ring: O.D less than 3000mm
Spec of HAYNES 188 (UNS R30188)
- Sheet, Plate & Strip AMS 5608
- Billet, Rod & Bar AMS 5772
- Forgings AMS 5772