Nickel Alloy C276 (2.4819)
Nickel Alloy C276 (2.4819) is a high-performance nickel-chromium-molybdenum alloy with excellent corrosion resistance and well-rounded performance
Product Forms:Available in plates, sheets, and coils.
Physical Properties:
Density: 8.89 g/cm³
Specific Heat Capacity: 427 J/kg·K
Thermal Conductivity: 9.4 W/m·K
Electrical Resistivity: 1.26 Ω·mm²/m
Chemical Composition:
| Element | Content Range |
|---|---|
| Nickel (Ni) | Remainder |
| Chromium (Cr) | 14.5–16.5% |
| Molybdenum (Mo) | 15.0–17.0% |
| Tungsten (W) | 3.0–4.5% |
| Iron (Fe) | 4.0–7.0% |
| Carbon (C) | ≤ 0.01% |
| Silicon (Si) | ≤ 0.08% |
| Manganese (Mn) | ≤ 1.00% |
| Cobalt (Co) | ≤ 2.5% |
| Phosphorus (P) | ≤ 0.04% |
| Sulfur (S) | ≤ 0.03% |
| Vanadium (V) | ≤ 0.35% |
Mechanical Properties:
| Property | Sheets ≤ 5 mm | Sheets 5–20 mm | Bars ≤ 90 mm Diameter | Notes |
|---|---|---|---|---|
| 0.2% Yield Strength (at 21°C) | 280 MPa | 255 MPa | 255 MPa | Decreases with increasing temperature |
| Tensile Strength | 750–1000 MPa | 700–950 MPa | 700–950 MPa | - |
| Elongation | 30% | 25% | 35% | - |
| Hardness | ~87 HRB | ~87 HRB | ~87 HRB | - |
| Impact Toughness (Charpy V-notch) | Average: 96 J (56 J after welding) Minimum: 67 J (39 J after welding) |
Average: 96 J (56 J after welding) Minimum: 67 J (39 J after welding) |
Average: 96 J (56 J after welding) Minimum: 67 J (39 J after welding) |
Welded values in parentheses |
Processing Performance:
Can be processed by both hot and cold working methods such as forging, rolling, drawing, and bending.
Processing is relatively difficult and requires suitable tools and techniques.
Hot working must control temperature and speed to avoid overheating or burning.
Cold-worked components usually require annealing to relieve stress and restore properties.
Weldability is good; the low carbon content helps prevent intergranular corrosion during welding. However, suitable welding methods and filler materials are still necessary.
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