HIGH TOUGHNESS FERROUS WELDED METAL

Title:

HIGH TOUGHNESS FERROUS WELDED METAL

Document Type and Number:

Japanese Patent JP2000254794

Kind Code:

A

Abstract:

To obtain a high toughness ferrous welded metal excellent in welding workability in all position, porous resistance and toughness by containing specified contents of C, Si, Mn, Ni, Al, CU and N.

This welding metal is contained by wt.% of 0.01-0.15 C, >0 to ≤0.5 Si, 0.5-2.5 Mn, 0.1-3 Ni, 1-2.5 Al, 0.05-1.5 Cu, 0-0.1 N and satisfies [Ni]+[Cu]≥0.7%. IT is desirable to satisfy FP≥0, wherein FP =[C]-0.145[Si]+0.014[Mn]-0.456([Al]-[N]×27/14)+0.231[Ni]+0.3[Cu]+0.393 and [C], [Si], [Mn], [Al], [N], [Ni] and [Cu] are mass % of C, Si, Mn, Al, N, Ni and Cu. Further, Mo is contained by mass % of 0.005-0.12. In this way, the high toughness welded metal which can form the excellent welding workability in all position, can be obtd.

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Inventors:

HATANO HITOSHI
MORIMOTO HIROYUKI
YAMAMOTO AKIRA
KOSHIISHI FUSAKI
KUROKAWA TSUYOSHI

Application Number:

JP6050599A

Publication Date:

September 19, 2000

Filing Date:

March 08, 1999

Export Citation:

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Assignee:

KOBE STEEL LTD

International Classes:

B23K35/30; (IPC1-7): B23K35/30

Attorney, Agent or Firm:

Etsushi Kotani (1 person outside)

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