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US 2026/0062777 A1Published application
Alloy composition
AssigneeParalloy Limited
InventorsNaveen Manikanteswaran, Dominique Flahaut
Life of this patent
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Abstract
The present invention relates to alloy compositions. The alloy compositions disclosed herein can be used to prepare components (e.g. pipes) for high temperature chemical engineering applications. Particular examples of high temperature chemical engineering applications are steam cracker furnaces, direct reduction of iron (DRI) furnaces and steam methane reformers. Components of these furnaces need to be able to withstand internal pressure at elevated temperatures for extended periods of time.
Claims19
An alloy composition comprising:
- from 0.30 wt. % to 0.55 wt. % carbon,
- from 42 wt. % to 52 wt. % nickel,
- from 23 wt. % to 28 wt. % chromium,
- from 3.2 wt. % to 4.5 wt. % aluminium,
- from 1.1 wt. % to 1.6 wt. % tungsten,
- from 0.79 wt. % to 1.05 wt. % niobium,
- from 0.1 wt. % to 0.15 wt. % molybdenum,
- from 0.08 wt. % to 0.25 wt. % titanium,
- from 0.001 wt. % to 0.10 wt. % zirconium,
- up to 0.003 wt. % rare earth metal,
- up to 0.003 wt. % tantalum,
- up to 0.6 wt. % silicon,
- up to 0.6 wt. % manganese,
- up to 0.08 wt. % nitrogen, and
- up to 0.01 wt. % oxygen,
- with the balance of the composition being iron and incidental impurities.
13 more elements
(canceled)
Dependencies are inferred from the claim text.