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Title:
Ni BASED ALLOY EXCELLENT IN HOT WORKABILITY
Document Type and Number:
Japanese Patent JP2002173720
Kind Code:
A
Abstract:

To provide an Ni based alloy which causes little generation of cracking, breaking or the like in hot working such as forging and hot rolling of an ingot or a slab, has good hot workability or the like, and further has excellent intergranular corrosion resistance and durability.

The Ni based alloy excellent in hot workability is provided with the componential composition (by weight) (a) containing ≤0.045% C, 3 to 25% Fe, 14 to 26% Cr, ≤4% Nb, 0.005 to 0.04% N, ≤1.0% Si, ≤0.2% Al, ≤0.030% P and ≤1.0% Mn, and (b) in which, as for S (ppm) and O (ppm), S≤150 ppm, and also, O (ppm)≤100-S/3.75 are satisfied; wherein, the contents of S (ppm) and O (ppm) are desirably smaller.


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Inventors:
KAWASHITA NOBUO
O KON
MIYUKI MASANORI
Application Number:
JP2000370941A
Publication Date:
June 21, 2002
Filing Date:
December 06, 2000
Export Citation:
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Assignee:
NIPPON YAKIN KOGYO CO LTD
International Classes:
G21C5/00; C22C19/05; G21C3/07; G21C3/30; G21C3/34; (IPC1-7): C22C19/05; G21C3/07; G21C3/30; G21C3/34; G21C5/00
Domestic Patent References:
JPS61288041A1986-12-18
JPS6184348A1986-04-28
JPH01132731A1989-05-25
JPH05140707A1993-06-08
JPS6075543A1985-04-27
JPS61153254A1986-07-11
JPH0570911A1993-03-23
Attorney, Agent or Firm:
Kawawa Takaho



 
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