Nickel Alloy C276 Material Property Data Sheet

Special Metals INCONEL® Alloy C-276

Subcategory: Metal; Nickel Base; Superalloy

Key Words: ASME SB-574, SB-575, SB-619, SB-622, SB-626, Boiler Code Sections I, III, VIII, IX; Werkstoff Nr. 2.4819, Nickel-Chromium Alloy; UNS N10276; ASTM B 574, B 575, B 619, B 622, B 626, B 751; NACE MR-01-75; DIN 17744, 17750-17752

Component    Wt. % C Max 0.01   Co Max 2.5   Cr 14.5 - 16.5   Fe 4 - 7

Component    Wt. % Mn Max 1   Mo 15 - 17   Ni 55   P Max 0.04

Component    Wt. % S Max 0.03   Si Max 0.08   V Max 0.35   W 3 - 4.5

Material Notes:
Nickel content as remainder. A nickel-molybdenum-chromium alloy with an addition of tungsten having excellent corrosion resistance in a wide range of severe environments. The high molybdenum content makes the alloy especially resistant to pitting and crevice corrosion. The low carbon content minimizes carbide precipitation during welding to maintain corrosion resistance in as-welded structures. Used in pollution control, chemical processing, pulp and paper production, and waste treatment. Standard product forms are round, forging stock, tube, pipe, plate, sheet, strip, and wire.

Data provided by the manufacturer, Special Metals.

Physical Properties	Metric	English	Comments
Density	8.89 g/cc	0.321 lb/in³
Mechanical Properties
Tensile Strength, Ultimate	790 MPa	115000 psi	Annealed. Value at room temperature. Value at 550°C is 620 MPa.
Tensile Strength, Yield	415 MPa	60200 psi	Annealed. Value at room temperature; 0.2% offset. Value at 550°C is 230 MPa.
Elongation at Break	62 %	62 %	Annealed. Value at room temperature. Value at 550°C is 60%.
Electrical Properties
Electrical Resistivity	0.0001229 ohm-cm	0.0001229 ohm-cm
Magnetic Permeability	1.0002	1.0002	at 200 oersted (15.9 kA/m)
Thermal Properties
CTE, linear 20°C	12.2 µm/m-°C	6.78 µin/in-°F	20-100°C
Heat Capacity	0.427 J/g-°C	0.102 BTU/lb-°F
Thermal Conductivity	9.8 W/m-K	68 BTU-in/hr-ft²-°F
Melting Point	1325 - 1370 °C	2420 - 2500 °F
Solidus	1325 °C	2420 °F
Liquidus	1370 °C	2500 °F