50/50 Nickel Aluminum

Lead-free1" x 6" x 12" Slabs 50% Nickel Content Catalyst Precursor Elevated Temperature Aluminum Alloys

Nickel-aluminum master alloy (50% Ni, 50% Al) for nickel additions to aluminum alloys and as a precursor for Raney-type nickel catalysts.

Solidus

1,569°F (854°C)

Liquidus

2,010°F (1,099°C)

Density

0.152 lbs/in³ (4.2 g/cm³)

Primary Elements

Al, Ni

Nominal Composition

50% Al, 50% Ni

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Product Overview

50/50 Nickel Aluminum is a nickel-aluminum master alloy with a nominal composition of 50% Ni and 50% Al. The alloy consists mainly of nickel aluminide intermediate phases and has a melting range of roughly 1,569–2,010°F (854–1,099°C).

In aluminum metallurgy, it is used to add nickel to alloys that need strength at elevated temperatures, such as piston alloys 336 and 242 and some hypereutectic alloys. Compared with our 20% Nickel Aluminum, it delivers more than twice the nickel per pound. A nickel-aluminum alloy of this type is also the classic starting material for Raney-type nickel catalysts, in which the aluminum is leached out with caustic to leave a highly porous, active nickel.

Supplied as 1″ x 6″ x 12″ slabs.

Available Forms

1" x 6" x 12" Slabs

Product Code

1500

Technical Info

Thermal Properties

Melting Point (Solidus)1,569°F (854°C)

Melting Point (Liquidus)2,010°F (1,099°C)

Physical Properties

Density (imperial)0.152 lbs/in³

Density (metric)4.2 g/cm³

Primary ElementsAl, Ni

Lead FreeYes

Key Features

1" x 6" x 12" Slabs50% Nickel ContentCatalyst PrecursorElevated Temperature Aluminum Alloys

Solubility Note

Add to molten aluminum at 1,450°F or above and stir, higher nickel content requires more time to dissolve than 20% Nickel Aluminum.

Nominal Composition

50% Al
50% Ni

Nickel forms stable intermetallic particles that help aluminum alloys retain strength and hardness at elevated temperatures. It is used in piston alloys and other castings that operate hot.

In Raney-type catalyst production, a nickel-aluminum alloy is treated with sodium hydroxide, which dissolves most of the aluminum and leaves a sponge-like, high-surface-area nickel. This activated nickel is widely used as a hydrogenation catalyst.

Divide the nickel needed by 0.50. To add 1% Ni to a 100 lb aluminum melt you need 1 lb of nickel, or 2 lbs of 50/50 Nickel Aluminum. Remember that the master alloy also adds an equal weight of aluminum.