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Butt weld fittings SB366 Inconel800, Inconel 800H, Inconel 800HT, Inconel 825,Inconel926 Elbow,Tee, Reduce, Cap
Incoloy 800H/AT is an austenitic heat resistant alloy designed for
high temperature structural applications. The strength of 800H/AT
is achieved by controlled levels of carbon, aluminum and titanium
along with a 2100°F minimum anneal to achieve a grain size of ASTM
5 or coarser.
800H/AT is commonly welded using RA82 (ERNiCr-3) bare wire for
applications under 1450°F. RA330-04 (N08334) bare wire offers a
closer match of thermal expansion coefficient, and somewhat higher
strength. For maximum strength alloy 617 (ERNiCrCoMo-1) bare wire
or 117 (ENiCrCoMo-1) covered electrodes are suggested. To avoid
possible stress relaxation grain boundary cracking of N08811 in
applications above 1000°F the welded fabrication may be heated
1650°F for about one hour per inch of thickness or 30 minutes
minimum then air cooled.
Chemistry
| Cr | Ni | Mn | Si | Al | Ti | Al +Ti | C | Cu | P | S | Fe | |
| MIN | 19.0 | 30.0 | - | - | 0.15 | 0.15 | 0.85 | 0.06 | - | - | - | 39.5 |
| MAX | 23.0 | 35.0 | 1.5 | 1.0 | 0.6 | 0.6 | 1.2 | 0.1 | 0.75 | 0.045 | 0.015 | - |
Specifications
ASME SB 407 Code Case 1325, ASME SB 408, ASME SB 409
ASTM B 407, ASTM B 408, ASTM B 409
UNS N08810, UNS N08811
W. Nr./EN 1.4958, W. Nr./EN 1.4959
Inventory
800H/AT Coil, 800H/AT Plate, 800H/AT Sheet, 800H/AT Welding Products
Common Trade Names
800H, Incoloy® 800, Alloy 800
Features
· High design stresses for ASME Section VIII applications to 1650°F
· Useful oxidation resistance through 1800°F
· Resistant to chloride ion stress corrosion cracking
Applications
· Nitric acid catalyst supports
· Reformer outlet pigtails and manifolds
· Heat exchangers
· Pressure vessels
· Dampers
Physical Properties
Density: 0.287 lb/in3
Melting Point: 2475 - 2525°F
| Temperature, °F | 70 | 1400 | 1600 | 1800 |
| Coefficient* of Thermal Expansion, in/in°F x 10-6 | - | 9.9 | 10.2 | - |
| Thermal Conductivity Btu • ft/ft2 • hr • °F | 6.7 | 13.8 | 15.1 | 17.8 |
| Modulus of Elasticity, Dynamic psi x 106 | 28.5 | 21.1 | 19.2 | - |
* 70°F to indicated temperature.
Mechanical Properties
Representative Tensile Properties
| Temperature,°F | 70 | 1000 | 1200 | 1400 | 1600 | 1800 |
| Ultimate Tensile Strength, ksi | 77 | 63.5 | 55.7 | 32.3 | 18.6 | 10.2 |
| 0.2% Yield Strength, ksi | 29 | 16.5 | 14.8 | 14.4 | 11.6 | 8.9 |
| Elongation, % | 52 | 51 | 50 | 78 | 120 | 120 |
Typical Creep- Rupture Properties
| Temperature, °F | 1400 | 1600 | 1800 |
| Minimum Creep 0.0001%/Hour, ksi | 6.0 | 3.6 | 1.05 |
| 10,000 Hour Rupture Strength, ksi | 7.3 | 3.5 | 1.2 |
| Grade | UNS | W.Nr. | Trade Name |
| Inconel 600 | N06600 | 2.4816 | Inconel 600®, Nickelvac® 600, Ferrochronin® 600 |
| Inconel 601 | N06601 | 2.4851 | Inconel 601®, Pyromet® 601, Nicrofer® 601 |
| Inconel 617® | N06617 | 2.4663 | Inconel 617®, Nicrofer® 617 |
| Inconel 625 | N06625 | 2.4856 | Inconel 625®, Chornin® 625, Altemp® 625, Nickelvac® 625, Haynes® 625 Nicrofer® 6020 |
| Inconel | N07718 | 2.4668 | Inconel 718®, Nicrofer® 5219, Alvac® 718, Haynes® 718, Altemp® 718 |
| Inconel X 750 | N07750 | 2.4669 | Inconel X750®, Haynes X750®, Pyromet® X750, Nickelvac®X750, Nicorros® 7016 |
| Incoloy 800 | N08800 | 1.4876 | Incoloy 800®, Ferrochronin® 800, Nickelvac® 800, Nicrofer® 3220 |
| Incoloy 800H | N08810 | 1.4876 | Incoloy 800H®, Ferrochronin® 800, Nickelvac® 800, Nicrofer® 3220 |
| Incoloy 800HT | N08811 | 1.4876 | Incoloy 800HT®, Ferrochronin® 800, Nickelvac® 800, Nicrofer® 3220 |
| Incoloy 825 | N08825 | 2.4858 | Incoloy 825®, Nickelvac® 825, Nicrofer 4241® |
