Title:
スラグスポット発生抑止能に優れるステンレス鋼材並びに溶接構造部材およびその製造法
Document Type and Number:
Japanese Patent JP7042057
Kind Code:
B2
Abstract:
This stainless steel material can stably and markedly suppress the occurrence of slag spots during arc welding, the stainless steel material having a chemical composition that contains, in terms of mass%, 0.005-0.100% of C, 0.10-3.00% of Si, 0.10-6.50% of Mn, 0.001-0.050% of P, 0.0001-0.0200% of S, 0-20.00% of Ni, 10.50-26.00% of Cr, 0.005-0.200% of N, 0.0030-0.0150% of O and, if necessary, prescribed quantities of Mo, Cu, Nb, V, Zr, W, Co, B, Ti, Al, Ca, Mg, REM (rare earth elements excluding Y) and Y, with the remainder comprising Fe and unavoidable impurities, with the average CaO/(SiO2+MnO+CaO) mass ratio being 0.40 or less and the average CaO/MnO mass ratio being 15.0 in oxide-based inclusions observed in the steel structure.
Inventors:
Yasuhiro Ehara
Morita Kazunari
Morita Kazunari
Application Number:
JP2017206555A
Publication Date:
March 25, 2022
Filing Date:
October 25, 2017
Export Citation:
Assignee:
Nippon Steel Stainless Steel Corporation
International Classes:
C22C38/00; C22C38/58
Domestic Patent References:
| JP9137255A | ||||
| JP4876350B2 |
Foreign References:
| WO2013005570A1 |
Attorney, Agent or Firm:
Komatsu Takashi
Previous Patent: Plant operation support device and operation support method
Next Patent: All solid state battery
Next Patent: All solid state battery