Welding material and welded joint structure

Details Welding material and welded joint structure Welding material and welded joint structure

2011-05-31

2011-05-31

Zimmerman, John J (Department: 1784)

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

C428S685000, C420S044000, C420S011000

Reexamination Certificate

active

07951469

ABSTRACT:
A welding material, to be used for welding a base metal made of an austenitic alloy comprising C≦2.0%, Si≦4.0%, Mn: 0.01 to 3.0%, P: more than 0.03% to not more 0.3%, S≦0.03%, Cr: 12 to 35%, Ni: 6 to 80%, sol. Al: 0.001 to 1% and N≦0.3%, with the balance being Fe and impurities to a base metal made of another austenitic alloy, which comprises C: more than 0.3% to 3.0%, Si≦4.0%, Mn≦3.0%, P≦0.03%, S≦0.03%, Cr: more than 22% to 55%, Ni: more than 30% to not more than 70%, sol. Al: 0.001 to 1% and N≦0.3%, with the balance being Fe and impurities can suppress the weld solidification cracking which occurs in an austenitic alloy having a high P content and showing fully austenitic solidification. Therefore, the said welding material can be widely used in such fields where a welding fabrication is required. The said welding material may contain a specific amount or amounts of one or more elements selected from Cu, Mo, W, V, Nb, Ti, Ta, Zr, Hf, Co, B, Ca, Mg and REM.

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Machine translation of JP 2004-058062. Feb. 26, 2004.
Y. Arata et al., “Solidification Crack Susceptibility in Weld Metals of Fully Austenitic Stainless Steels (Report II)”,Transactions of JWRIvol. 6-1 (1977), p. 105-116.

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