The aircraft gas turbine engine market has traditionally been the major user of HASTELLOY® and HAYNES® High-temperature alloys. Here the story has been one of incremental growth as each major advance in engine performance capitalizes on the development of newer and more efficient materials of construction.
MULTIMET® alloy was the first significant wrought HAYNES® high-temperature alloy offered to the aviation industry in the 1950's. HASTELLOY® X alloy, the next major development is still a "workhorse" of the industry. HAYNES® 188 alloy later offered engine designers a much higher temperature advantage. HAYNES® 230® alloy has gained increased use because of its unexcelled combination of high-temperature strength and oxidation resistance plus improved thermal stability. HAYNES® 242® alloy shows great promise for aircraft engine seal rings, containment rings, duct segments, casings and fasteners. The newest HAYNES® 282® alloy combines exceptional high temperature properties with good weldability and fabricability.
Outside of the aircraft industry, high performance, heat-resistant alloys offer properties never before available. Because of its superior oxidation resistance through 2200°F (1204°C), HAYNES® 214® alloy is gaining more and more applications in the ceramics, metalworking, automotive and electronics industries for "clean firing."
HAYNES® 556® and HR-160® alloys have very good resistance in waste disposal and fossil energy production because of their superior resistance to oxidation, sulfidation and molten salt attack.
HAYNES® HR-120®, 230® and 556® alloys are providing cost-effective solutions to many maintenance problems in the heat-treating and industrial heating industries because of their superior properties.
HAYNES® 25 alloy
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HAYNES® 25 alloy (UNS R30605) offers excellent strength, good oxidation resistance to 1800°F (980°C), and relatively good resistance to wear and galling. Used in gas turbine parts. |
HAYNES® 75 alloy
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HAYNES® 75 alloy (UNS N06075) is a basic heat-resistant alloy used in low-stress gas turbine and industrial applications. |
HAYNES® 188 alloy
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HAYNES® 188 alloy (UNS R30188) is a cobalt-nickel-chromium-tungsten alloy that offers excellent high-temperature strength and superior oxidation resistance up to 2000°F (1095°C) and thermal stability. This alloy is used extensively in demanding military and civil aircraft gas turbine engine combustors, transition ducts, and after-burner components. |
HAYNES® 214® alloy
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HAYNES® 214® alloy (UNS N07214) is a nickel-chromium-aluminum-iron alloy designed to provide the optimum high-temperature oxidation resistance for a wrought material, while at the same time allowing for conventional forming and joining. This alloy offers outstanding oxidation resistance to 2300°F (1260°C) and is used in demanding, specialized gas turbine parts, such as honeycomb seals combustor splash plates and other static oxidation-limited parts. |
HAYNES® 230® alloy
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HAYNES® 230® alloy (UNS N06230) is a nickel-chromium-tungsten-molybdenum alloy that offers the best combination of high- temperature strength, resistance to oxidizing environments up to 2100°F (1149°C) for prolonged exposures, excellent long-term thermal stability, and fabricability of any major high-temperature alloy. It is used for combustion cans, transition ducts, flame holders, thermocouple sheaths, and other important gas turbine components. |
HAYNES® 233® alloy
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HAYNES® 233® alloy is a new Ni-Co-Cr-Mo-Al alloy that offers excellent oxidation resistance at temperatures up to 2100°F (1149°C) or higher coupled with superior creep strength - a combination of properties never before achieved in a readily fabricable alloy. The alloy obtains its exceptional oxidation resistance through the formation of a protective alumina scale. Potential applications include hot gas components in aerospace and industrial gas turbines, industrial heating fixtures and sensors, and various structural components in the emerging technology market. |
HAYNES® 242® alloy
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HAYNES® 242® alloy (UNS N10242) is an age-hardenable, nickel-molybdenum-chromium alloy which derives its strength from a long-range ordering reaction upon aging. This alloy offers excellent strength to 1300°F (705°C), low thermal expansion characteristics, good oxidation resistance up to 1500°F (815°C), excellent low-cycle fatigue properties, very good thermal stability, and fabricability. It is used in gas turbine seal rings, containment, and high-strength fasteners. |
HAYNES® 244® alloy
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HAYNES® 244® alloy is a age-hardenable, nickel-molybdenum-chromium-tungsten alloy with an extended operating temperature range to 1400°F (760°C). This alloy offers improved yield strength and creep rupture strength, versus HAYNES® 242® alloy, as well as a lower thermal expansion. Additionally, the alloy has excellent low-cycle fatigue and good oxidation resistance. The higher strength and lower thermal expansion provides better dimensional control, sealing, and containment characteristics for aero engine designers. |
HAYNES® 263 alloy
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HAYNES® 263 alloy (UNS N07263) is a gamma-prime strengthened, age-hardenable alloy with good strength in the 1000-1400°F (540-760°C) temperature range and excellent forming and welding characteristics. |
HAYNES® 282® alloy
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HAYNES® 282® alloy (UNS N07208) is a wrought, gamma-prime strengthened superalloy developed for high-temperature structural applications, especially those in aero and industrial gas turbine engines. It possesses a unique combination of creep strength, thermal stability, weldability, and fabricability not found in currently available commercial alloys. This new alloy has excellent creep strength in the temperature range of 1200 to 1700°F (649° to 927°C), surpassing that of Waspaloy alloy and approaching that of R-41 alloy. The features of this alloy make it suitable for critical gas turbine applications, such as sheet fabrications, forged rings and cases, exhaust and nozzle structures, and other hot-gas-path components. Vacuum-melted castings and additive manufactured powder components have also been successfully produced and used. |
HAYNES® 556® alloy
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HAYNES® 556® alloy (UNS R30556) is a high-strength alloy with broad spectrum of resistance to high-temperature corrosive environments. Used in waste incineration, heat-treating, calcining, chemical processing, galvanizing, refinery, boiler and gas turbine components of various types. Excellent fabricability and excellent as a dissimilar filler metal for welding nickel or cobalt alloys to iron-base alloys. |
HAYNES® 617 alloy
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HAYNES® 617 alloy (UNS N06617) is widely used in gas turbines for combustion cans, ducting and transitions. |
HAYNES® 625 alloy
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HAYNES® 625 and 625SQ® alloys (UNS N06625, UNS N06626) are used in wide variety of aerospace components. The 625SQ® alloy grade offers improved LCF properties for bellows type applications. |
HAYNES® 625SQ® alloy
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HAYNES® 625 and 625SQ® alloys are used in wide variety of aerospace components. The 625SQ® alloy grade offers improved LCF properties for bellows type applications. |
HAYNES® 718 alloy
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HAYNES® 718 alloy (UNS N07718) is an age-hardenable alloy with excellent strength to 1200°F (650°C). Used extensively in gas turbine components. |
HAYNES® HR-120® alloy
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HAYNES® HR-120® alloy (UNS N08120) is a high-strength economical alloy, with good resistance to industrial environments. Designed for use in heat treating fixture and industrial heating applications as an upgrade from 330 alloy, 800H alloy and stainless steels. Excellent carburization and sulfidation resistance. |
HAYNES® HR-160® alloy
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HAYNES® HR-160® alloy (UNS N12160) has outstanding resistance to sulfidation and other high-temperature aggressive environments. Used in waste incineration, boiler, high-temperature reaction vessel and rotary calciner applications. |
HAYNES® HR-224® alloy
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HAYNES® HR-224® alloy is a new alloy with excellent oxidation resistance to 2200°F (1204°C), with improved fabricability and weldability compared to HAYNES® 214® alloy. Used in demanding industrial heating applications and steam reformer parts. |
HAYNES® HR-235® alloy
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HAYNES® HR-235® alloy is a high-chromium, copper-bearing nickel alloy that has excellent resistance to metal dusting in carbonaceous high-temperature environments. Potential uses include applications in petrochemical production and syngas plants. Similar to other nickel-based corrosion resistant alloys, the alloy is readily fabricated and welded. |
MULTIMET® alloy
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Predecessor of 556® alloy (UNS R30155, W73155), used extensively in older aircraft gas turbines. |
HAYNES® NS-163® alloy
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HAYNES® NS-163® alloy is a wrought cobalt-based alloy for use in sheet and wire forms. |
HAYNES® R-41 alloy
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HAYNES® R-41 alloy (UNS N07041) is a gamma-prime strengthened, age-hardenable alloy with excellent strength in the 1000-1650°F (540-900°C) temperature range. Used for critical gas turbine engine components. |
HASTELLOY® S alloy
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HASTELLOY® S alloy (UNS N06635) offers excellent thermal stability, good thermal fatigue resistance, good oxidation-resistance and relatively low expansion characteristics. Used in low-stress gas turbine parts. |
HASTELLOY® W alloy
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HASTELLOY® W alloy (UNS N10004) is excellent for welding dissimilar high-temperature alloys. Used extensively in aircraft engine repair and maintenance. |
HAYNES® Waspaloy alloy
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HAYNES® Waspaloy alloy (UNS N07001) is a gamma-prime strengthened, age-hardenable alloy with very good strength in the 1000-1650°F (540-900°C) temperature range. Widely used for forged and fabricated gas turbine and aerospace components. |
HASTELLOY® X alloy
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HASTELLOY® X alloy (UNS N06002, W86002) is a nickel-chromium-iron-molybdenum alloy that has been in service in aerospace applications for nearly 50 years. The alloy offers very good balance of high-temperature strength, oxidation resistance, and fabricability. This alloy is widely used for aircraft and industrial gas turbine engine fabricated combustor and exhaust components, such as transition ducts, combustor cans, spray bars and flame holders, afterburners, and tailpipes. |
HAYNES® X-750 alloy
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HAYNES® X-750 alloy (UNS N07750) is an age-hardenable alloy with good strength to 1500°F (815°C). |