Hastelloy C-276
Designated as UNS N10276 or DIN 2.4819, Hastelloy C-276 (also known as Alloy C-276), is 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. Hastelloy C-276 are typically used in a variety of industries such as pollution control, chemical processing, pulp and paper production, and waste treatment, etc. Hebei Metals provides Alloy C-276 materials in the form of plates, sheets, strips, billets, bars, wires, pipes, tubes, flanges, pipe fittings, and covered electrode.
Hastelloy C-276 seamless pipes, ASTM B622, O.D=25mm, W.T=2mm, Length=5.01m.
1. Chemical Composition Requirements
Hastelloy C-276 weld neck flanges, 14″ 600# SCH80 RTJ.
Nominal Chemical Composition of Hastelloy C-276, % |
Nickel | Balance |
Cobalt | ≤2.5 |
Chromium | 16 |
Molybdenum | 16 |
Iron | 5 |
Tungsten | 4 |
Manganese | ≤1 |
Vanadium | ≤0.35 |
Silicon | ≤0.08 |
Carbon | ≤0.01 |
Copper | ≤0.5 |
2. Typical Physical Properties of Hastelloy C-276
90° Elbow, L/R SCH40 12″, butt welding, UNS N10276.
Density | Melting Range | Specific Heat | Magnetic Permeability |
lb/in3 | g/cm3 | °F | °C | Btu/lb.°F | J/kg*°C | 200 oersted | 15.9 kA/m |
0.321 | 8.89 | 2415-2500 | 1323-1371 | 0.102 | 427 | 1.0002 | 1.0002 |
3. Product Forms and Related Standards
Hastelloy C-276 machine bolts.
Products Form | Standard |
Sheet, Plate & Strip | ASTM B575 |
Billet, Rod & Bar | ASTM B472 |
Coated Electrodes | DIN 2.4887 |
Bare Welding Rods & Wire | DIN 2.4886 |
Seamless Pipe & Tube | ASTM B983 |
Welded Pipe & Tube | ASTM B619/B626 |
Fittings | ASTM B366/B462 |
Forgings | ASTM B564/B462 |
*The mechanical properties vary in different product forms and heat treatment conditions.
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