Complaint
Iron nickel chrominum inconel Incoloy 800 800H 800HT heating element seamless welded pipe tube
Alloy 800 is an iron-nickel-chromium alloy with moderate strength and good resistance to oxidation and carburization at elevated temperatures. It is particularly useful for high-temperature equipment in the petrochemical industry because the alloy doesn't form the embrittling sigma phase after long time exposure at 1200°F (649°C). Excellent resistance to chloride stress-corrosion cracking is another important feature of alloy 800.
Alloy 800H is a solution heat treated (2100°F/1150°C), controlled-carbon version of alloy 800 with improved elevated temperature properties. It has improved creep and stress-rupture characteristics in the 1100°F (593°C) to 1800°F (982°C) temperature range.
Applications
Typical applications for alloy 800 and 800H are - Heat exchangers and process piping; carburizing fixtures and retorts; furnace components; electric range heating-element sheathing; extruded tubing for ethylene and steam methane reforming furnaces; ammonia effluent coolers.
The following table discusses the physical properties of INCOLOY alloy 800.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.94 gm/cm3 | 0.287 lb/in3 |
The mechanical properties of INCOLOY alloy 800 are tabulated below.
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength(annealed) | 600 MPa | 87 ksi |
| Yield strength(annealed) | 275 MPa | 39.9 ksi |
| Elongation at Break | 45% | 45% |
Some of the designations used to denote INCOLOY alloy 800 are listed below:
| UNS N08800 | AMS 5766 | AMS 5871 | ASTM B163 | ASTM B366 |
| ASTM B407 | ASTM B408 | ASTM B409 | ASTM B514 | ASTM B515 |
| ASTM B564 | DIN 1.4876 |
| Incoloy | Incoloy 800 | Incoloy 800H | ||
| Element | Min | Max | Min | Max |
| Nickel + Cobalt | 30.0 | 35.0 | 30.0 | 35.0 |
| Cobalt | --- | 2.00 | --- | 2.00 |
| Chromium | 19.0 | 23.0 | 19.0 | 23.0 |
| Copper | --- | 0.75 | --- | 0.75 |
| Iron | Bal | Bal | ||
| Silicon | --- | 1.00 | --- | 1.00 |
| Manganese | --- | 1.50 | --- | 1.50 |
| Carbon | --- | 0.10 | 0.05 | 0.10 |
| Aluminum | 0.15 | 0.60 | 0.15 | 0.60 |
| Titanium | 0.15 | 0.60 | 0.15 | 0.60 |
| Sulfur | --- | 0.015 | --- | 0.015 |
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| Form and Condition | Tensile Strength | Yield Strength (0.2% Offset) | Elongation, % | Hardness, Rockwell | ||
| ksi | Mpa | Ksi | Mpa | |||
| Wire | ||||||
| cold drawn | ||||||
| Annealed | 80-120 | 550-830 | 35-75 | 240-520 | 45-20 | - |
| No. 1 Temper | 105-135 | 725-930 | 70-105 | 480-725 | 35-15 | - |
| Spring Temper | 170-220 | 1170-1520 | 150-210 | 1035-1450 | 5-2 | - |
CHANGZHOU DLX ALLOY CO, LTD was established in 2002 and has got Iso9001 International Quality Management System Certificate and SGS Certificate. Our factory is professional in researching and producing special alloy material. From melting, drawing, heat treatment, finishing and testing .We offer nickel-based, copper-based, and iron-based alloys, including super alloy, welding materials, anti-corrosion alloy, precision alloy, FeCrAl alloy, NiCr alloy, CuNi alloy, thermocouple and etc, in the form of wire, strip, ribbon, bar, tube, plate.
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