Nickel AlloysAlloy C-276 Bar

Superalloy with excellent corrosion resistance in a wide range of severe environments.

A solution-annealed nickel-molybdenum-chromium alloy with the addition of tungsten, C276 exhibits excellent corrosion resistance in a wide range of severe environments.

The high molybdenum content of C276 provides the alloy with its excellent resistance to pitting and crevice corrosion. Since the alloy's low carbon content means C276 is resistant to the formation of grain boundary precipitates in the heat-affected zone, C276 can maintain its unique corrosion resistance in the as-welded condition.

C276 is selected for resistance to wet chlorine gas, hypo-chlorites and many other aggressive chemicals. It also offers exceptional resistance to strong solutions of oxidising salts such as ferric and cupric chlorides.

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Related Specifications

N10276
ASTM B574
2.4819

Properties

Chemical Composition

Chemical Element	% Present
Carbon (C)	0.00 - 0.01
Chromium (Cr)	14.50 - 16.50
Cobalt (Co)	0.00 - 2.50
Iron (Fe)	4.00 - 7.00
Manganese (Mn)	0.00 - 1.00
Molybdenum (Mo)	15.00 - 17.00
Phosphorous (P)	0.00 - 0.04
Silicon (Si)	0.00 - 0.08
Sulphur (S)	0.00 - 0.03
Tungsten (W)	3.50 - 7.50
Vanadium (V)	0.00 - 0.04
Nickel (Ni)	Balance

Mechanical Property	Value
Proof Stress	283 MPa
Tensile Strength	690 MPa
Elongation A50 mm	4 %
Hardness Rockwell B	4 HRB

Physical Property	Value
Density	8.89 g/cm³
Melting Point	1325-1370°C

Applications

Pressure vessels
Reactors
Mixers and agitators
Scrubbers
Dampers
Heat exchangers
Venturis
Evaporators
Solvent recovery plants
Pumps and Valves

Characteristics

Excellent resistance to pitting and corrosion
High mechanical properties
Excellent resistance to oxidising atmospheres up to 1040°C
Very high resistance to many aggressive chemicals
One of the few alloys resistant to wet chloride gas, hypochlorite and chlorine dioxide solutions
Good welding properties

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Disclaimer

This Data is indicative only and as such is not to be relied upon in place of the full specification. In particular, mechanical property requirements vary widely with temper, product and product dimensions. All information is based on our present knowledge and is given in good faith. No liability will be accepted by the Company in respect of any action taken by any third party in reliance thereon. Please note that the 'Datasheet Update' date shown above is no guarantee of accuracy or whether the datasheet is up to date.

The information provided in this datasheet has been drawn from various recognised sources, including EN Standards, recognised industry references (printed S online) and manufacturers' data. No guarantee is given that the information is from the latest issue of those sources or about the accuracy of those sources. Material supplied by the Company may vary significantly from this data but will conform to all relevant and applicable standards. As the products detailed may be used for a wide variety of purposes and as the Company has no control over their use; the Company specifically excludes all conditions or warranties expressed or implied by statute or otherwise as to dimensions, properties and/or fitness for any particular purpose, whether expressed or implied. Advice given by the Company to any third party is given for that party's assistance only and without liability on the part of the Company. All transactions are subject to the Company's current Conditions of Sale. The extent of the Company's liabilities to any customer is clearly set out in those Conditions; a copy of which is available on request.