Semih Metals, based in Istanbul, Turkey, stands out as a top-notch manufacturer and supplier of high-performance metal products, including Incoloy 800HT Forgings. Known for their commitment to quality, technical know-how, and prompt delivery, Semih Metals caters to industries that thrive in high-temperature and corrosive settings. Incoloy 800HT is a specially designed nickel-iron-chromium alloy that excels in heat resistance, offering impressive strength and oxidation resistance at elevated temperatures. Semih Metals provides custom-forged components in a variety of shapes and sizes, all crafted to meet international standards. These forgings are perfect for demanding applications in power generation, petrochemical processing, and industrial furnaces, where long-lasting stability and reliability are crucial.
Incoloy 800HT Forgings primarily consist of nickel (30–35%), chromium (19–23%), and iron, with small amounts of aluminum (0.15–0.60%) and titanium (0.15–0.60%). This upgraded version of Incoloy 800H boasts enhanced high-temperature creep and rupture strength. Its mechanical properties include a tensile strength of about 600–750 MPa and remarkable resistance to carburization and oxidation, even at temperatures reaching 1100°C (2012°F). The alloy maintains its structural integrity even after prolonged exposure to thermal cycling and harsh environments. Plus, Incoloy 800HT is known for its good weldability and fabricability, making it a great choice for forged components that need to endure high mechanical stress and elevated temperatures.
Specifications ASTM B564 / ASME SB564, AMS 5766
Flat bar blocks up to 27″ width and 15,000 lbs.
Cylinders and sleeves up to 50″ maximum O.D. and 65″ maximum length
Discs and hubs up to 50″ diameter and 20,000 lbs.
Rolled, hand forged or mandrel forged rings up to 84″ maximum O.D. and 40″ maximum length
Rounds, shafts and step shafts up to 144″ maximum length and 20,000 lbs.
| Grade | Ni | Fe | Cr | Cu | Ti | Al | C | Mn | S | Si |
| Alloy 800HT | 30.0-35.0 | 39.5 min | 19.0-23.0 | .75 max | .25-.60 | .85-1.20 | .06-.10 max | 1.5 max | .015 max | 1.0 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.94 g/cm3 | 1350-1400 ℃ | Psi – 75,000 , MPa -520 | Psi – 30,000 , MPa – 205 | 30 – 35 % |
| Density | 0.287 lb/in3 / 7.94 g/cm3 |
| Melting Point | 2475 – 2525 °F/ 1357 – 1385 °C |
| Specific Heat @ 70°F | 0.11 Btu/lb•°F |
| Permeability @ 70°F Annealed | 1.014 (200 Oersted) |
| Curie Temperature | -115 °C/ -175 °F |
| Elastic Modulus | 28.50 X 106 psi |
| Electrical Resistivity @ 70°F | 595 ohm•circ mil/ft |
| Annealling Incoloy 800 | 983 – 1038 °C / 1800 – 1900 °F |
| Annealling Incoloy 800H / Ht | 1147 – 1177°C / 2100 – 2150 °F |
| Quench | Rapid Air / Water |
| STANDARD | UNS | WNR. | AFNOR | EN | JIS | BS | GOST | OR |
| Incoloy 800HT | N08811 | 1.4959 | – | X8NiCrAlTi32-21 | NCF 800HT | NA 15(HT) | ЭИ670 | XH32T |
To determine if Incoloy 800HT Forgings meet your specific needs, assess their high-temperature resistance, oxidation, and carburization properties against your application requirements. Consulting with a supplier for detailed material specifications and testing options can also ensure compatibility.
The ideal temperature range for forging Incoloy 800HT is between 2100°F (1149°C) and 2300°F (1260°C). This range ensures optimal workability, mechanical properties, and maintains the material's strength and resistance to oxidation.
Temperature control is crucial for maintaining the desired mechanical properties of forged Incoloy 800HT, as overheating or insufficient heating can lead to reduced strength and ductility. Proper temperature management ensures optimal grain structure, resistance to oxidation, and overall performance in high-temperature applications.
Incoloy 800HT Forgings find their way into various applications that require both strength and corrosion resistance at high temperatures. These include parts in heat exchangers, reformer tubes, superheaters, furnace manifolds, and equipment used in petrochemical processing. In power plants and industrial furnaces, this alloy stands up to oxidation, carburization, and thermal fatigue. Its impressive creep-rupture strength makes it a go-to for load-bearing applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Semih Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Istanbul, Turkey
Copyright 2024 Semih Metals. All rights reserved
