# US 2014/0193290 A1 · Ni-Al BASE MATERIAL HAVING OPTIMIZED OXIDATION RESISTANT AT HIGH TEMPERATURES AND FURNACE TRANSFER ROLLS MADE THEREFROM

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2014/0193290 A1
- Document ID: US20140193290A1
- Status: Published application
- Kind: A1
- Application number: 13/738,257
- Filed: 2013-01-10
- Published: 2014-07-10
- Earliest claimed: 2013-01-10
- Assignees: ArcelorMital
- Inventors: Tanya Ros Yanez; Akmar Kumar De
- Web page: https://patentgrep.com/patent/US20140193290A1

## CPC

- C22C 19/057: {with the maximum Cr content being less 10%}
- C22C 19/007: {with a light metal (alkali metal Li, Na, K, Rb, Cs; earth alkali metal Be, Mg, Ca, Sr, Ba, Al Ga, Ge, Ti) or B, Si, Zr, Hf, Sc, Y, lanthanides, actinides, as the next major constituent}
- C22C: ALLOYS (treatment of alloys C21D, C22F)

## Abstract

A high temperature oxidation resistant nickel-aluminide alloy composition and furnace rolls formed therefrom. The inventive nickel-aluminide alloy composition comprises 0.08-0.1 wt. % Zr, 2.5-3.0 wt. % Mo, 7.5-8.5 wt. % Al, 7.5-8.5 wt. % Cr, about 0.01 wt. % B and the balance being substantially nickel.

## Claims

### Claim 1

A nickel-aluminide alloy comprising 0.15 wt % or less Zr.

### Claim 2 (depends on 1)

The nickel-aluminide alloy of claim 1, wherein said Zr ranges from about 0.08 -0.1 wt %.

### Claim 3 (depends on 1)

The nickel-aluminide alloy of claim 1, wherein said alloy further comprises from about 2.5 to 3.0 wt. % Mo.

### Claim 4 (depends on 4)

The nickel-aluminide alloy of claim 4, wherein said alloy further comprises about 2.8 wt % Mo.

### Claim 5 (depends on 1)

The nickel-aluminide alloy of claim 1, wherein said alloy further comprises from about 7.5 to 8.5 wt. % Al.

### Claim 6 (depends on 5)

The nickel-aluminide alloy of claim 5, wherein said alloy further comprises from about 7.5 to 8.5 wt. % Cr.

### Claim 7 (depends on 1)

The nickel-aluminide alloy of claim 1, wherein said alloy further comprises about 0.015 wt. % B or less.

### Claim 8 (depends on 7)

The nickel-aluminide alloy of claim 7, wherein said alloy further comprises about 0.01 wt. % B.

### Claim 9 (depends on 1)

The nickel-aluminide alloy of claim 1, wherein said alloy further comprises in wt. %:
C-0.05 max; Si-0.1 max; Fe-0.3 max; S-0.005 max; Mn-0.1 max; P-0.01 max; and Cu-0.3 max.

### Claim 10 (depends on 9)

The nickel-aluminide alloy of claim 9, wherein said alloy contains no more than trace amounts of the other elements from group IVB, VB and VIB of the periodic table.

### Claim 11

A furnace roll for a high temperature furnace comprising a cast roll of a nickel-aluminide alloy comprising 0.15 wt % or less Zr.

### Claim 12 (depends on 11)

The furnace roll of claim 11, wherein said Zr ranges from about 0.08 -0.1 wt %.

### Claim 13 (depends on 11)

The furnace roll of claim 11, wherein said alloy further comprises from about 2.5 to 3.0 wt. % Mo.

### Claim 14 (depends on 14)

The furnace roll of claim 14, wherein said alloy further comprises about 2.8 wt % Mo.

### Claim 15 (depends on 11)

The furnace roll of claim 11, wherein said alloy further comprises from about 7.5 to 8.5 wt. % Al.

### Claim 16 (depends on 15)

The furnace roll of claim 15, wherein said alloy further comprises from about 7.5 to 8.5 wt. % Cr.

### Claim 17 (depends on 11)

The furnace roll of claim 11, wherein said alloy further comprises from about 0.015 wt. % B or less.

### Claim 18 (depends on 17)

The furnace roll of claim 17, wherein said alloy further comprises about 0.01 wt. % B.

### Claim 19 (depends on 11)

The furnace roll of claim 11, wherein said alloy further comprises in wt. %: C-0.05 max; Si-0.1 max; Fe-0.3 max; S-0.005 max; Mn-0.1 max; P-0.01 max; and Cu-0.3 max.

### Claim 20 (depends on 19)

The furnace roll of claim 19, wherein said alloy contains no more than trace amounts of the other elements from group IVB, VB and VIB of the periodic table.