Mitsubishi Heavy Industries Limited

Other

Takashi Inami

Takayuki Kawano

Tamao Takatsu

Iwami Ishihara

Nobuhiko Nishimura

Teiichiro Saito

Akira Notomi

Kiyotaka Iwatsubo

Toshimitsu Tetsui

Hideharu Kobayashi

Takayuki Maeda

Toshiaki Nishio

Kaneyasu Ishikawa

Tetsuji Yamaguchi

Hiroshi Tsurusaki

Youzaburo Mabuchi

Mitsushige Kumou

Masakazu Matsui

Ryoji Miki

Yoshimi Onitsuka

Yuichi Kojima

A powder material for powder plasma build-up welding which exhibits excellent resistance and bending properties comprises C in an amount of 0.06 to 0.15% (% by weight, the same hereinafter), Si in an amount of 0.2 to 1.0%, Mn in an amount of 0.2 to 1.0%, Cr in an amount of 17 to 30%, Nb in an amount of 0.6 to 1.5%, Ni in an amount of not more than 0.5%, and the balance consisting of Fe and unavoidable impurities.

Powder material for powder plasma overlaying and powder plasma overlaying metal

An object of the present invention is to provide a weld material which contains 8 to 13% Cr, and can be used with the GMA welding method, a GMA welding method which has superior arc stability and can provide a welded material having superior properties, and a welded structure; in order to attain this object, a weld material is provided, which contains in weight, 0.01 to 0.15% C, 0.1 to 0.6% Si, 0.1 to 2.0% Mn, 8 to 13% Cr, 0.1 to 1.5% Ni, 0.3 to 2.0% Mo, 0.05 to 0.5% V, 0.08 to 0.5% W, 0.5 to 5.0% Co, 0.1 to 0.5% Ta, &lE;0.08 N, 0.01 to 0.1% REMs, and consisting of the balance Fe with inevitable impurities.

Weld material, gas metal arc welding method, and welded structure

This invention relates to welding materials for high-Cr steels which exhibit higher toughness and improved creep characteristics. Specifically, this invention relates to a welding material for high-Cr steels which contains, on a weight percentage basis, 0.03 to 0.12% C, up to 0.3% Si, 0.2 to 1.5% Mn, up to 0.02% P, up to 0.01% S, 8 to 13% Cr, 0.5 to 3% Mo, up to 0.75% Ni, 0.15 to 0.3% V, up to 0.01% Nb, 0.05 to 0.3% Ta, 0.1 to 2.5% W, 0.01 to 0.75% Cu, up to 0.03% Al, 0.002 to 0.005% B, up to 0.015% N, and up to 0.01% O, the balance being Fe and incidental impurities. It also relates to such welding materials wherein W is optionally excluded from the aforesaid composition, wherein W is excluded and 0.1 to 3% Co is added, or wherein 0.1 to 3% Co is added to the aforesaid composition.

Welding materials for high-Cr steels

Growing community of inventors

Fukuoka, Japan

Takashi Inami