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Hastelloy C-276/Alloy C-276/UNSN10276/W.Nr. 2.4819

Hastelloy C-276/Alloy C-276/UNSN10276/W.Nr. 2.4819

Hastelloy C-276 (Alloy C-276), with UNS N10276 and W.Nr. 2.4819, is a nickel-molybdenum-chromium alloy known for its exceptional corrosion resistance in strong oxidizing and reducing environments. It offers excellent protection against pitting, crevice corrosion, and stress corrosion cracking, especially in harsh media such as hydrochloric, sulfuric, and nitric acids.

Hastelloy C-276 is widely used in chemical processing, pollution control, marine, and pulp & paper industries. Typical applications include heat exchangers, pressure vessels, reactors, evaporators, and flue gas scrubbers—anywhere reliable performance is required in highly corrosive conditions.

Hastelloy C-276/Alloy C-276/UNSN10276/W.Nr. 2.4819
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Hastelloy C-276/Alloy C-276/UNSN10276/W.Nr. 2.4819 Chemical Compositions

Nickel (Ni) Balance
Molybdenum (Mo) 15-17% max
Chromium (Cr) 14.5-16.5%
Iron (Fe) 4-7%
Tungsten (W) 3.0-4.5%
Cobalt (Co) 2.5 % max
Manganese (Mn) 1% max
Carbon (C) 0.01% max
Vanadium (V) 0.35 max
Phosphorus (P) 0.04% max
Sulfur (S) 0.03% max
Silicon (Si) 0.08% max

Hastelloy C-276/Alloy C-276/UNSN10276/W.Nr. 2.4819 Physical Properties

Density lb/in3 0.321
g/cm3 8.89
Melting Range °F 2415-2500
°C 1325-1370
Thermal Conductivity Btu•in/ft2•h•°F 67.9
AW/m•°C 9.8
Specific Heat  Btu•lb•°F 0.102
J/kg•°C 427
Young’s Modulus 103ksi 29.8
GPa 205
Shear Modulus 103ksi 11.4
GPa 79
Permeability at 200 oersted (15.9 kA/m) 1.0002
Poisson’s Ratio 0.307

Hastelloy C-276/Alloy C-276/UNSN10276/W.Nr. 2.4819 Mechanical Properties

Temperature

Yield strength

Tensile strength

Rp 0.2

Rm

°C

°F

MPa

ksi

MPa

ksi

20

68

310

45.0

700

101.5

Hastelloy C-276/Alloy C-276/UNSN10276/W.Nr. 2.4819 Standard Specifications

Bar, Rod and wire Seamless Pipe and Tube Welded Pipe and Tube Plate, Sheet, and Strip Forgings Fittings
ASTM B 574/ASME SB 574 ASTM B 622 / ASME SB 622 ASTM B 626 /ASME SB 626, ASTM B 619 / ASME SB 619 ASTM B 575/ASME SB 575 ASTM B 564 /ASME SB 564, B472/SB472, B462/SB462 ASTM B 366/ASME SB 366

Standard product forms of Hastelloy C-276/Alloy C-276/UNSN10276/W.Nr. 2.4819 are pipe, tube, sheet, strip, plate, round bar, flat bar, forging stock, hexagon and wire. The products are available in a wide variety of sizes. Please contact us at [email protected] for full information. 

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