Nimonic 263

Catalog : Nimonic alloy 263

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Description

Nimonic 263

NIMONIC ®alloy 263 (UNS N07263/W. Nr. 2.4650), an air melted nickel-base alloy, was developed by Rolls-Royce (1971) Ltd. to provide a sheet material which could be readily fabricated and would offer improved ductility in welded assemblies to replace NIMONIC alloy 80A. It was designed as sheet material to meet specific design criteria in terms of proof stress and creep strength. It is now available in all standard forms.

%Chemical Composition

B Al S Mn Si C Ni
(max) 0.005 (max) 0.6 (max) 0.007 (max) 0.6 (max) 0.4 0.08 – 0.04 Balance
Pb Ti Mo Fe Cu Cr Co
(max) 0.002 2.4 – 1.9 6.1 – 5.6 (max) 0.7 (max) 0.2 21 – 19 21 – 19

Density & Melting Range

Melting Range (Celsius) Density
1355 – 1300 (g/cm) 8.36

Mechanical Properties

% Elongation Yield Strength (MPa) Tensile Strength (MPa)
39 550 940

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