Punch and counter punch plates

Details Punch and counter punch plates Punch and counter punch plates

1988-03-11

1989-11-14

Yee, Deborah

Metal treatment

Stock

Ferrous

148326, 148327, 420 60, 420 61, 420 49, 420 58, C22C 3820, C22C 3840

Patent

active

048804819

ABSTRACT:
Punch and counter punch plates are fabricated from chromium containing alloys, essentially consisting of, each in percent by weight, carbon in the range of 0 to 1.1, silicon in a maximum of 1.0, manganese in a maximum of 1.5, chromium in the range of 11.0 to 17.5, molybdenum in the range of 0 to 1.5, nickel in the range of 0.35 to 10.0, copper in the range of 0 to 4.5, vanadium in the range of 0 to 0.5, cobalt in the range of 0 to 1.5, niobium in the range of 0 to 0.45, titanium in the range of 0 to 1.5, nitrogen in the range of 0 to 0.1, the remainder being iron and impurities resulting from the manufacturing conditions.

REFERENCES:
patent: 3376780 (1966-09-01), Tanczyn
patent: 3574601 (1971-04-01), Myers et al.
patent: 4540424 (1985-09-01), Yamakami et al.
patent: 4564566 (1986-01-01), Jerlich et al.

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