公开(公告)号：US09994938B2

公开(公告)日：2018-06-12

申请号：US14758375

申请日：2013-12-25

Applicant: THE JAPAN STEEL WORKS, LTD.

Inventor： Shinya Sato ,  Rinzo Kayano ,  Tatsuya Takahashi ,  Koichi Takasawa

IPC: C22C38/00 ,  C21D6/00 ,  C22C38/48 ,  C21D6/02 ,  C22C38/50 ,  C22C38/54 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/44

CPC classification number: C22C38/00 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D6/02 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/44 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54

Abstract: The present invention relates to an Fe—Ni-based alloy having excellent high-temperature characteristics and hydrogen embrittlement resistance, which has a composition containing, in terms of % by mass, C: 0.005% to 0.10%, Si: 0.01% to 0.10%, P: 0.015% or less, S: 0.003% or less, Ni: 23.0% to 27.0%, Cr: 12.0% to 16.0%, Mo: 0.01% or less, Nb: 0.01% or less, W: 2.5% to 6.0%, Al: 1.5% to 2.5%, and Ti: 1.5% to 2.5%, the balance being Fe and other unavoidable impurities.

公开(公告)号：US11131013B2

公开(公告)日：2021-09-28

申请号：US16486259

申请日：2018-02-16

Applicant: THE JAPAN STEEL WORKS, LTD.

Inventor： Takuya Okawa ,  Koichi Takasawa ,  Eiji Maeda ,  Masato Yoshida

IPC: C22F1/10 ,  C22C19/05 ,  F01D5/28

Abstract: The purpose of the present invention is to enhance the creep characteristics of an Ni-based alloy. The present invention relates to a Ni-based alloy characterized by having a composition containing, in terms of wt %, 15.00-25.00% Cr, 5.00-15.00% Co, 1.00% to less than 12.00% Mo, 1.50-2.50% Ti, 1.00-2.00% Al, 0.20-1.00% Nb, and 0.0010-0.10% C, and in terms of mass ppm, 10-200 ppm P, 30-250 ppm B, and 30-200 ppm N, the remainder comprising Ni and unavoidable impurities.