DIN2631 Hastelloy C276, UNS N10276 Nickel Alloy Long Weld Neck Raised Face Flange
DIN2631 Hastelloy C276, UNS N10276 Nickel Alloy Long Weld Neck Raised Face Flange
The long neck connects the pipe into the flange and provides reinforcement that a weld neck flange cannot have. Long Weld Neck Flanges are also used in situations when expansion bends or changes the pipe because of the high pressure. Hastelloy C276 is defined as Alloy C276 or Inconel C276. Hastelloy C276 is a superalloy with a combination of molybdenum, nickel, and chromium. The addition of tungsten offers an excellent form of corrosion resistant in the severe environments. The components of molybdenum and nickel help in resisting to crevice corrosion and pitting in reducing environments. And chromium is used to convey resistance to oxidizing the media.
Equivalent Grades:
| STANDARD | UNS | WERKSTOFF NR. | JIS | EN | GOST | OR |
| Hastelloy C276 | N10276 | 2.4819 | NW 0276 | NiMo16Cr15W | ХН65МВУ | ЭП760 |
Specifications:
| Specifications | ASTM B564, ASME SB564 |
| Grades | Hastelloy C276 (UNS N10276) |
| Dimension | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN |
| Size | 1/2” To 48” |
| Schedule | SCH5 To SCHXXS |
| Value Added Services | Hot Dipped Galvanizing, Electro Polish, Sand Blasting, Epoxy & FBE Coating, Threading, Soldering |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#; PN6, PN10, PN16, PN25, PN40, PN64, etc. |
| Flange Face Type | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
Chemical Composition:
| C | Mn | Si | S | Fe | Mo | P | Co | Ni | Cr |
| 0.01 max | 1 max | 0.08 max | 0.03 max | 4 – 7 | 15 – 17 | 0.04 max | 2.5 max | 50.99 min | 14.5 – 16.5 |
Mechanical Properties:
| Density, g/cm3 | Melting Point, °C(°F) | Elongation, % | Tensile Strength, Psi(MPa) | Yield Strength (0.2%Offset), Psi(MPa) |
| 8.89 | 1370 (2500) | 40 | 115000 (790) | 52,000 (355) |
Applications:
Pollution Control Systems
Flue Gas Desulfurization
Chemical Processing
Heat Exchangers
Reaction Vessels
Evaporators
Transfer Piping
Pulp and Paper Plant
Waste Treatment
Pharmaceutical
Food Processing Equipment
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