ALLOY 188 Haynes 188 Equivalent ,Cobalt Alloy , Ams 5608 UNS R30188
Overview
Alloy 188 (UNS R30188) 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 Haynes 188 Equivalent ,Cobalt Alloy , Ams 5608 UNS R30188 Specification
alloy 188 is designated as UNS R30188. Contact xinzheng special
steel for information on available product forms.
Flat products: AMS 5608
Bar: AMS 5772
ALLOY 188 Haynes 188 Equivalent ,Cobalt Alloy , Ams 5608 UNS R30188 Dimension Range
| Typical Dimension ranges <Other upon request> |
| Form | Specification | Others |
| Sheet | Thickness:0.40-4.75mm,General Width:1000,1219,1500mm | Cold Annealed,Surface 2B,2E |
| Plate | Thickness:4.76-60mm,Width:1500,2000,2500mm,Length:3000,6000,8000,8500mm(Under
10mm plate can be coiled) | Single hot rolling,Solid solution annealed state,Surface 1D |
| Belt | Thickness:0.10-3.0mm,Width:50-500mm | Cold Annealed,Surface 2B,2E |
| Bar & Rod | Rolled barΦ5-45mm,Length≤1500mm | Solution annealing,descaling |
| Forged barΦ26-245mm,Length≤4000mm |
| Weld tube | Outer diameterΦ4.76-135mm,Wall Thickness0.25-4.00mm,Length:≤35000
mm | |
| Seamless Tube | Outer diameterΦ3-114mm,Wall Thickness0.2-4.5mm | |
| Wire | Outer diameterΦ0.1-13mm | Ni & Ni alloy, Ti & Ti alloy |
| Forged piece | discs,rings,squares,blocks,slabs | Steel, Alloy |
| Flangs | All kinds of Flangs | Steel, Alloy |
| Welding Material | Coil wire Φ0.025mm-1.6mm | Certificate of Origin:America, Sweden, Britain, Germany, Austria,
Italy, France. |
| Straight WireΦ1.6mm-4.0mm |
| Welding rodΦ1.2mm-4.0mm |
| Tube | Elbow, three links, four links, different diameter size | Ni & Ni alloy, Ti & Ti alloy |
| Explosive bonded laminate | Raw Sheet Thickness≥2mm | Ni & Ni alloy, Ti & Ti alloy |
ALLOY 188 Haynes 188 Equivalent ,Cobalt Alloy , Ams 5608 UNS R30188 Application :
Typical Uses
Alloy 188 , HAYNES 188 alloy combines properties which make is
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, transitions
ducts, and after- burner components. It shares applications in
newer engine programs with a more recently developed material, 230
alloy, which possesses improved properties.
ALLOY 188 Haynes 188 Equivalent ,Cobalt Alloy , Ams 5608 UNS R30188 Technical datasheet
Typical Room Temperature Mechanical Properties of annealed alloy
188 Sheet < Hayes 188 equivalent >
| Yield Strength | Tensile Strength | Elongation | | ksi | MPa | ksi | MPa | % | | 65 | 446 | 140 | 963 | 55 |
|
|
Principal Features
Excellent High-Temperature Strength and Environment Resistance
188 alloy (UNS R30188) is a cobalt-nickel-chromium-tungsten alloy
that com-bines excellent high-temperature strength with very good
resistance to oxidizing environ-ments up to 2000°F (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 sulfidation.
Readily Fabricated
188 alloy has good forming and welding characteristics. It may be
forged or oth-er hot-worked, providing that it is held at 2150°F
(1175°C) for a time sufficient to bring the entire piece to
temperature. As a consequence of its good ductility, 188 alloy is
also readily formed by cold working. The alloy does work-harden
rapidly, however, so frequent inter-mediate annealing treatments
may be needed for complex component forming operations. All hot- or
cold- worked parts should be annealed and rapidly cooled in order
to restore the best balance of properties.
The alloy can be welded by both manual and automatic welding
methods, including gas tungsten arc (TIG), gas metal arc (MIG),
electron beam and resistance welding. It exhibits good restraint
welding characteristics.
Heat Treatment
Wrought 188 alloy is furnished in the solution heat treated
condition, unless oth-erwise specified. The alloy is normally
solution heat-treated at 2125-2175°F (1163-1191°C) and rapidly
cooled or water quenched for optimal properties.
Annealing at temperatures less than the solution heat-treating
temperature will produce some carbide precipitation in alloy 188,
which may affect the alloy’s properties,
General Q and A
Q: Would you provide samples For free?
A: Yes. with on stock specification We provide samples For Free.
Freight charge collect
Q: What information should i provide to source for the right
products?
A: Material grade, width, thickness, coating and Purchase quantity,
Expected lead time, etc
Q: What are the shipping ports?
A: Under normal circumstances, we ship from Shanghai, Tianjin,
Qingdao, Ningbo ports, you
can choose other ports according to your needs.
Q: About product prices?
A: Prices vary from period to period due to cyclical changes in the
price of raw materials.
Q: How long does your delivery time take?
A: In general, our delivery time is within 5-45 days, and may be
delayed if the demand is extremely
large or special circumstances occur.
Q: Can I visit your location?
A: Of course, we welcome customers from all over the world to visit
our factory. However, some
of the plants are not open to the public.
Q: Does the product have quality inspection before loading?
A: Of course, all our products are strictly tested for quality
before packaging, and unqualified products will be destroyed. We
provide All Original Mill test certificate and support third party
inspection.
Q: How to pack the products?
A: The inner layer has a waterproof paper outer layer with iron
packaging and is fixed with a fumigation
wooden pallet. It can effectively protect products from corrosion
during ocean transportation.
Q: What is your working time?
A: In general, our online service time is Beijing time: 8:00-22:00,
after 22:00,
we will reply to your inquiry during the next working day.
