| Equivalent Grade | ● UNS: N08811 ● W.Nr.: 1.4876 (Grade HT) ● Chinese Standard: GH3044 |
| Standard | ● Sheet/Plate: ASTM B409 ● Seamless Pipe: ASTM B407 ● Bar: ASTM B408 Higher requirements for high-temperature creep and stress rupture performance than 800H |
| Alloy Type | Nickel-Chromium-Iron Alloy (High-Temperature Heat and Corrosion Resistant Type, Grade HT High-Temperature Strengthened) |
| Standard | Sheet, Bar, Pipe, Tube, Fittings, Flange, Welding Materials, Forgings, Thick-Walled Pipes, High-Temperature Components |
| Key Properties | ● Higher high-temperature strength than Incoloy 800H, outstanding creep rupture strength at 650-850℃ ● Excellent oxidation, carburization and nitridation resistance, extremely stable service under long-term high temperature ● Resistant to steam, high-temperature flue gas and chemical medium corrosion, excellent hot and cold forming and weldability |
| Applicable Environment | Higher temperature oxidizing/reducing environment, ultra-high temperature heat exchange scenarios, large heat treatment furnaces, high-temperature steam boilers, chemical high-temperature reaction devices, oil and gas high-temperature processing equipment |
| Typical Applications | Ultra-High Temperature Heat Exchangers, Boiler Superheater/Reheater Tubes, Large Heat Treatment Furnace Liners, Chemical High-Temperature Reactors, Oil And Gas Deep Processing Equipment, Power Station High-Temperature Components, Nuclear Auxiliary Equipment, etc. |