Fe-Cr-Al alloys for electric resistance wires

Details Fe-Cr-Al alloys for electric resistance wires Fe-Cr-Al alloys for electric resistance wires

2006-02-28

2006-02-28

Ip, Sikyin (Department: 1742)

Alloys or metallic compositions

Ferrous

Nine percent or more chromium containing

C420S040000, C148S325000

Reexamination Certificate

active

07005105

ABSTRACT:
The present invention relates to Fe—Cr—Ar type alloys with additions to improve workability thereof, strength, and heat resistance. The present Fe—Cr—Al alloy for electric resistance wires comprises a basic alloy added with only Be of below 0.01 wt % or with both Be and misch metal composed of rare earth elements wherein the basic alloy consists of a balance element of Fe, a Cr element of 12˜30 wt %, an Al element of 3˜14 wt %, a Zr element of 0.01˜1.5 wt %, and a Ti element of 0.001˜0.1 wt %. The present Fe—Cr—Al type alloys remarkably improve physical properties of Fe—Cr—Al ferritic alloys, especially, workability and mechanical properties, and heating characteristic.

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