Incoloy 800HT flanges are high performance components for high temperature and high pressure applications due to their excellent strength and corrosion resistance. The flange is a nickel-iron-chromium alloy with appropriate amounts of titanium, aluminum and carbon added to enhance its creep resistance and structural stability at high temperatures. This type of flange is commonly used in industries such as chemical, petrochemical and power generation.
What are the characteristics of 800HT alloy?
800HT/1.4959 alloy is an austenitic high-strength solid solution nickel-iron-chromium alloy. It has good resistance to reduction, oxidation and nitridation. It has good metallurgical stability when used for a long time at high temperature.
Incoloy 800HT Flanges Chemical Composition
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr | AI | Ti |
| Incoloy 800HT | .06-.10 max | 1.5 max | 1.0 max | .015 max | .75 max | 39.5 min | 30.0-35.0 | 19.0-23.0 | .85-1.20 | .25-.60 |
Incoloy 800HT Flanges Mechanical Properties
| 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 % |
Dimensions of Incoloy Alloy 800HT Flanges :
| Size in Inch | Size in mm | Outer Diameter | Flange Thickness | Hub OD | Weld Neck OD | Welding Neck Length | Bore | RF Diameter | RF Height | PCD | Weld Face |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B | C | D | E | F | G | H | I | J | ||
| 1/2 | 15 | 90 | 9.6 | 30 | 21.3 | 46 | Refer Note | 34.9 | 2 | 60.3 | 1.6 |
| 3/4 | 20 | 100 | 11.2 | 38 | 26.7 | 51 | 42.9 | 2 | 69.9 | 1.6 | |
| 1 | 25 | 110 | 12.7 | 49 | 33.4 | 54 | 50.8 | 2 | 79.4 | 1.6 | |
| 1 1/4 | 32 | 115 | 14.3 | 59 | 42.2 | 56 | 63.5 | 2 | 88.9 | 1.6 | |
| 1 1/2 | 40 | 125 | 15.9 | 65 | 48.3 | 60 | 73 | 2 | 98.4 | 1.6 | |
| 2 | 50 | 150 | 17.5 | 78 | 60.3 | 62 | 92.1 | 2 | 120.7 | 1.6 | |
| 2 1/2 | 65 | 180 | 20.7 | 90 | 73 | 68 | 104.8 | 2 | 139.7 | 1.6 | |
| 3 | 80 | 190 | 22.3 | 108 | 88.9 | 68 | 127 | 2 | 152.4 | 1.6 | |
| 3 1/2 | 90 | 215 | 22.3 | 122 | 101.6 | 70 | 139.7 | 2 | 177.8 | 1.6 | |
| 4 | 100 | 230 | 22.3 | 135 | 114.3 | 75 | 157.2 | 2 | 190.5 | 1.6 | |
| 5 | 125 | 255 | 22.3 | 164 | 141.3 | 87 | 185.7 | 2 | 215.9 | 1.6 | |
| 6 | 150 | 280 | 23.9 | 192 | 168.3 | 87 | 215.9 | 2 |
Gnee Steel is a supplier of Incoloy 800HT Flange, with products covering tubes: Seamless tubes: Size: 4 - 219 mm; Thickness: 0.5 - 20 mm; Welded tubes: Size: 5.0 - 1219.2 mm; Thickness: 0.5 - 20 mm, Plates: Plate thickness 0.1 to 100 mm; Plate width 10-2500 mm, Strips, Alloy round bar sizes: diameter 3-800 mm;, Flat bar sizes: thickness 2-100 mm; Width: 10-500 mm, Hexagonal bar sizes: 2-100 mm;, Wire and extruded profiles. We work with steel mills to provide customers with 625 alloy, and its products meet or exceed many leading industry standards, including ASTM, ASME, SAE, AMS, ISO, DIN, EN and BS standards.
Gnee Steel stocks and sells Incoloy 800HT Flange, Tube, Pipe, Plate, Strip, Plate, Round Bar, Flat Bar, Forged Billet, Hexagon, Wire and Extruded Profiles. Feel free to contact us for a quote at ss@gneesteel.com
