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.

1. Chemical Composition Requirements

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

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

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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