ASTM B409 UNS Incoloy 800/800H/800HT Plate and Sheet
- UNS N08120, UNS N08890, UNS N08800 (Incoloy 800), UNS N08810 (Incoloy 800H), and UNS N08811 (Incoloy 800HT)
- Type: Plate, Sheet, and Strip
Features
ASTM B409 Nickel-Iron-Chromium Alloy Incoloy 800/800H/800HT Plate, Sheet, and Strip
Grade: UNS N08120, N08800, N08810, N08811, N08890
Incoloy 800/800H/800HT Plate Chemical Composition (wt. %)
| Element | Alloy N08120 | Alloy N08890 | Alloys N08800, N08810, N08811 |
|---|---|---|---|
| Nickel (Ni) | 35.0 min | 40.0 min | 30.0 min |
| Chromium (Cr) | 23.0 min | 23.5 min | 19.0 min |
| Iron (Fe) | Remainder | Remainder | 39.5 min |
| Manganese (Mn) | Max 1.5 | Max 1.5 | Max 1.5 |
| Carbon (C) | 0.02 min | 0.06 min | See Below* |
| Copper (Cu) | Max 0.50 | Max 0.75 | Max 0.75 |
| Silicon (Si) | Max 1.0 | Max 1.0 | Max 1.0 |
| Sulfur (S) | Max 0.03 | Max 0.015 | Max 0.015 |
| Aluminum (Al) | Max 0.40 | 0.05 min | 0.15 min |
| Titanium (Ti) | Max 0.20 | 0.15 min | 0.15 min |
*Carbon for N08800: Max 0.10, N08810: 0.05-0.10, N08811: 0.06-0.10
Mechanical Properties for Plate, Sheet, and Strip (All thicknesses and sizes unless otherwise indicated)
| Alloy | Condition | Tensile Strength min psi (MPa) | Yield Strength (0.2% offset) min psi (MPa) | Elongation in 2 in. or 50 mm min % |
| UNS N08120 | Annealed | 90,000 (621) | 40,000 (276) | 30 |
| UNS N08800 | Annealed/As-rolled | 75,000 (520) / 80,000 (550) | 30,000 (205) / 35,000 (240) | 30 / 25 |
| UNS N08810 | Annealed | 65,000 (450) | 25,000 (170) | 30 |
| UNS N08811 | Annealed | 65,000 (450) | 25,000 (170) | 30 |
| UNS N08890 | Annealed | 75,000 (520) | 30,000 (205) | 35 |
Technical Specifications
| Specification | Value |
| Standard | ASTM B409 Incoloy 800/800H/800HT Plate |
| Grade | UNS N08120, UNS N08890, UNS N08800, UNS N08810, and UNS N08811 |
| Type | Plate, Sheet, Strip |
| Thickness | 1-50mm |
| Length | 1000 – 12000mm |
| Width | 500 – 2500mm |
| Inspection Certificate | EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection) |
| Tests | Tensile Strength (ASTM E8/E8M), Hardness (ASTM E10), Bend Test (ASTM E290), Impact Test (ASTM E23), Intergranular Corrosion Test (Various ASTM Standards) |
Packing
They are packed on plywood pallets or in plywood boxes according to the customer’s requirements.
Application
Heat exchangers: Their corrosion resistance and high temperatures make them ideal for heat exchangers in chemical plants, refineries, and other processing facilities.
Reaction vessels and piping: Used for handling corrosive chemicals at elevated temperatures.
Furnace components: Such as muffles, retorts, and radiant tubes, due to their resistance to oxidation and carburization.
Ethylene cracking furnaces: Incoloy 800HT is often used for tubes and components in these furnaces due to its exceptional creep and rupture strength at high temperatures.
Reformer furnaces: Their resistance to high temperatures and carburization makes them suitable for reformer tubes and other components.
Hydrocarbon processing equipment: Used in various equipment exposed to high temperatures and corrosive environments.
Superheater and reheater tubing: Incoloy 800H and 800HT are commonly used for these applications in fossil fuel power plants due to their superior creep resistance.
Boiler components: Their resistance to high-temperature corrosion and oxidation makes them suitable for boiler tubes, headers, and other components.
Nuclear power plants: Used in various components due to their corrosion resistance and good performance in high-temperature water environments.
Food processing equipment: Used for processing corrosive food products at high temperatures.
Pollution control equipment: Suitable for components in scrubbers and incinerators due to their resistance to corrosive gases.
Heat-treating equipment: Used for baskets, fixtures, and other components in heat-treating furnaces due to their resistance to carburization and oxidation.
Industrial heating equipment: Suitable for high-temperature applications in various industrial furnaces and ovens.
