Hastelloy C276(UNS N10276 W.Nr. 2.4819)

1.Hastelloy C276 Introduction

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.

2.Hastelloy C276 MAJOR  SPECIFICATIONS

UNS N10276 

ASTM B 366, B 462, B 564, B 574,   B 575, B 619, B 622, B 626,   B 751, B 775, B 829 

DIN 17744, 17750 – 17754 

Werkstoff Nr. 2.4819

VdTüV 400 

ASME SB-366, SB-564,   SB-574, SB-575, SB-619,  SB-622, SB-626, SB-751,   SB-775, SB-829 

ASME Code Case 1924 

NACE MR-0175/ISO 15156 

ISO 6207, 6208, 9723 – 9725

3.Hastelloy C276 STANDARD  PRODUCT FORMS

Pipe, tube, sheet, strip, plate, round bar, flat bar, forging  stock, hexagon and wire.

4.Hastelloy C276 LIMITING CHEMICAL  COMPOSITION, %

5.Hastelloy C276 PHYSICAL CONSTANTS  AND THERMAL  PROPERTIES

Density, Ib/in3 .........................................................................0.321 

g/cm3 ......................................................................... 8.89 

Melting Point, °F.....................................................2415 – 2500 

°C.....................................................1325 – 1370 

Specific Heat, Btu/lb •°F....................................................0.102 

J/kg •°C.......................................................... 427 

Coefficient of Expansion, 70 – 200°F, 10-6 in/in •°F........6.8 

24 – 100°C, μm/m •°C......... 12.2 

Thermal Conductivity, Btu • in/ft2• h•°F...........................67.9 

W/m•°C.............................................9.8 

Electrical Resistivity, ohm • circ mil/ft..........................739.2 

μΩ•m..............................................1.229 

Permeability at 200 Oersted (15.9 kA/m)................. 1.0002

6.Hastelloy C276 TYPICAL MECHANICAL  PROPERTIES

(Annealed) 

Tensile Strength, ksi............................................................... 100 

MPa............................................................ 758 

Yield Strength (0.2% Offset), ksi...........................................53 

MPa..................................... 363

Elongation, % ..............................................................................62