Cutter composed of Ni-Cr alloy

Details Cutter composed of Ni-Cr alloy Cutter composed of Ni-Cr alloy

2003-05-14

2010-06-22

Wyszomierski, George (Department: 1793)

Metal treatment

Stock

Nickel base

C030S165000, C420S443000, C420S445000, C420S452000, C420S455000, C420S457000, C420S459000, C420S460000

Reexamination Certificate

active

07740719

ABSTRACT:
A cutter is composed of a Ni—Cr alloy containing from 32 to 44 mass percent of Cr, from 2.3 to 6.0 mass percent of Al, the balance being Ni, impurities, and additional trace elements and having a Rockwell C hardness of 52 or more. This Ni—Cr alloy provides a cutter produced with a superior workability and by a significantly simplified process, having a low deterioration in the hardness even when heated in use, having excellent corrosion resistance and low-temperature embrittlement resistance, and satisfactorily maintaining the cutting performance for a long time.

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