Deloro 40 (as-cast) Microstructure at 500X

Wide Ranging Nickel Based Alloys

The Deloro alloys are nickel-based alloys with additions of typically Cr, C, B, Fe and Si. They cover a very wide range of hardness from soft to tough, and can be easily machined or hand-finished to exceptionally hard, wear-resistant alloys. Deloro alloys can be selected based on hardnesses between 20 and 62 HRC depending on the application. 

The lower hardness Deloro alloys are typically used for glass-forming molds. The higher hardness Deloro alloys are used in severe wear applications, such as rebuilding the flights of feeder screws, and they can be blended with carbides for an even harder deposit. They maintain their properties up to temperatures of about 315° C (600° F) and also offer good oxidation resistance.

Browse Our Deloro Alloys

Deloro 22

Deloro 22 is a pre-alloyed, gas-atomized, nickel-based powder that is used primarily for the local repair and hardfacing of glass-forming molds.

 

Nominal Composition
Base: Ni
Si: 2.5
Cr: <0.05
Fe: <1.0
B: 1.5
Others: Cr

Hardness HRC: 18-24 HRC

Typical UTS: 95 Ksi / 655 MPa

UNS: Not Listed

AMS: Not Listed

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Deloro 40

Deloro 40 is a NiCrSiB alloy developed primarily for the surfacing of steels and is also available as a casting. The alloy contains complex carbides, borides, and nitrides in a tough nickel matrix and provides protection from corrosion and both abrasive and sliding wear.

Nominal Composition
Base: Ni
Cr: 7.5
Si: 3.5
Fe: 2.5
C: 0.3
B: 2.0

Hardness HRC: 35-45 HRC

Typical UTS: 100 Ksi / 689 MPa

UNS: N99644

AMS: Not Listed

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Deloro 50

Deloro 50 is primarily a hardfacing alloy for welding, spray-fuse, and powder-weld processes but is also available as a casting. It is machineable and produces very hard, dense and corrosion-resistant coatings with superior fusing characteristics.

Nominal Composition
Base: Ni
Cr: 10-16
Si: 3.5
Fe: 3-5
C: 0.5
B: 2.0

Hardness HRC: 45-55 HRC

Typical UTS: 95 Ksi / 655 MPa

UNS: N99645

AMS: Not Listed

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Deloro 60

Deloro 60 is a hard nickel base alloy with excellent wear resistance, high hardness, and corrosion resistance. It can be ground, but is not machinable.
 

Nominal Composition
Base: Ni
Cr: 14-15
Si: 2.0-4.5
Fe: 3.5
C: 0.7
B: 3.2

Hardness HRC: 56-64 HRC

Typical UTS: 30 Ksi / 207 MPa

UNS: N99646

AMS: Not Listed

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