Customization: | Available |
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Application: | Aviation, Electronics, Industrial, Medical, Chemical |
Standard: | JIS, GB, DIN, BS, ASTM, AISI |
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UNS R30188 Alloy 188 AMS 5772 Haynes 188 gh5188 Gh188 High Temperature Alloy Bar
Shape |
Round,Forging,Ring,Coil,Flange,Disc,Foil,Spherical,Ribbon,Square,Bar,Pipe,Sheet |
Grade |
Duplex: 2205(UNS S31803/S32205),2507(UNS S32750),UNS S32760(Zeron 100),2304,904L |
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Others:253Ma,254SMo,654SMo,F50(UNSS32100)F60,F61,F65,1J22,N4,N6 etc |
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Alloy : Alloy 20/28/31 |
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Hastelloy:HastelloyB/ -2/B-3/C22/C-4/S/ C276/C-2000/G-35/G-30/X/N/g |
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Hastelloy B / UNS N10001,Hastelloy B-2 / UNS N10665 / DIN W. Nr. 2.4617,Hastelloy C, Hastelloy C-4 / UNS N06455 / DIN W. Nr. 2.4610,Hastelloy C-22 / UNS N06022 / DIN W. Nr. 2.4602, Hastelloy C-276 / UNS N10276 / DIN W. Nr. 2.4819,Hastelloy X / UNS N06002 / DIN W. Nr. 2.4665 |
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Haynes: Haynes 230/556/188 |
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Inconel 600/601/602CA/617/625/713/718/738/X-750,Carpenter 20 |
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Inconel 718 / UNS N07718 / DIN W. Nr. 2.4668,Inconel 601 / UNS N06601 / DIN W. Nr. 2.4851, Inconel 625 / UNS N06625 / DIN W. Nr. 2.4856,Inconel 725 / UNS N07725,Inconel X-750 / UNS N07750 / DIN W. Nr. 2.4669,Inconel 600 / UNS N06600 / DIN W. Nr. 2.4816 |
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Incoloy: Incoloy 800/800H/800HT/825/925/926; |
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GH: GH2132,GH3030,GH3039,GH3128,GH4180,GH3044 |
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Monel: Monel 400/K500/R405 |
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Nitronic: Nitronic 40/50/60; |
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Nimonic: Nimonic 75/80A/90/A263 ; |
Specification |
Wire: 0.01-10mm |
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.
Alloy 188 has average room temperature tensile properties in the bright annealed condition of 137.2 ksi (946 MPa) ultimate strength, 67.3 ksi (464 MPa) yield strength and 53% elongation. At 1800°F (980°C) the alloy has ultimate and yield strengths of 35.2 ksi (243 MPa) and 19.0 ksi (131 MPa), respectively, with 59% elongation. Cryogenic temperatures do not significantly affect the ductility of alloy 188, but strength levels are increased markedly.
The excellent oxidation resistance of Haynes 188 results from minute additions of lanthanum, which modifies the protective oxide scale in such a manner that the oxide becomes extremely tenacious and retards diffusion when exposed to temperatures through 2100°F (1150°C).
Haynes 188 exhibits good ductility after prolonged exposure at temperatures of 1200, 1400, and 1600°F (650, 760 and 870°C) for 16,000 hours.
The chemical composition of Haynes 188 is outlined in the following table.
Element | Content (%) |
---|---|
Cobalt, Co | ≥ 37 |
Nickel, Ni | 22 |
Chromium, Cr | 22 |
Tungsten, W | 14 |
Iron, Fe | ≤ 3 |
Manganese, Mn | ≤ 1.25 |
Silicon, Si | ≤ 0.50 |
Carbon, C | ≤ 0.15 |
Lanthanum, La | 0.040 |
Phosphorous, P | 0.020 |
Sulfur, S | 0.015 |
The following table outlines the physical properties of Haynes 188.
Properties | Metric | Imperial |
---|---|---|
Density | 8.9 g/cm3 | 0.324 lb/in3 |
Melting point | 1330°C | 2425°F |
Other designations that are equivalent to Haynes 188 include: