Weld joint and welding material thereof

Details Weld joint and welding material thereof Weld joint and welding material thereof

C - Chemistry, Metallurgy

22

C

C22C 19/05 (2006.01) B23K 9/23 (2006.01) B23K 35/30 (2006.01) C22C 38/00 (2006.01) C22C 38/58 (2006.01)

Patent

CA 2575109

A weld joint, characterized in that both of a base material and a weld metal have a chemical composition that C: 0.01 to 0.45%, Si: more than 1 % and not more than 4 %, Mn: 0.01 to 2 %, P: 0.05 % or less, S: 0.01 % or less, Cr: 15 to 35 %, Ni: 40 to 78 %, Al: 0.005 to 2 %, N: 0.001 to 0.2 % and Cu: 0.015 to 5.5 %, Ti: a content satisfying the following formula (1): {(Si - 0.01)/30} + 0.01Cu <= Ti <= 5 (1) wherein an element symbol in the formula (1) means the content (mass %) of the element, and the balance: Fe and impurities. The base material and the weld metal may further contain one or more of Co, Mo, Ta, W, V, Zr, Nb, Hf, B, Ca, Mg and REM.

Joint fixe, caractérisé en ce qu~à la fois le matériau de base et le métal de soudage ont une composition chimique que C : 0,01 à 0,45%, Si : plus de 1% et pas plus de 4%, Mn : 0,01 à 2 %, P : 0,05 % ou moins, S : 0,01 % ou moins, Cr : 15 à 35 %, Ni : 40 à 78 %, Al : 0,005 à 2 %, N : 0,001 à 0,2 % et Cu : 0,015 à 5,5 %, Ti : un contenu satisfaisant la formule suivante (1) : {(Si - 0,01)/30} + 0,01Cu <= Ti <= 5 (1) dans laquelle un symbole d~élément dans la formule (1) signifie le contenu (% masse) de l~élément, et l~équilibre : Fe et des impuretés. Le matériau de base et le métal soudé peuvent en outre contenir un ou plus de Co, Mo, Ta, W, V, Zr, Nb, Hf, B, Ca, Mg et REM.

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