Ferritic stainless steel material for brazing and heat exchanger member

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United States of America Patent

PATENT NO 9932650
SERIAL NO

13376708

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Abstract

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A ferritic stainless steel material for brazing without grain coarsening has a partially recrystallized structure and composition comprising, in % by mass, C:0.03% or less, Si: more than 0.1 to 3%, Mn: 0.1 to 2%, Cr: 10 to 35%, Nb: 0.2 to 0.8%, N: 0.03% or less, if necessary, at least one of Mo, Cu, V and W: 4% or less in total, at least one of Ti and Zr: 0.5% or less in total, at least one of Ni and Co: 5% or less in total, or at least one of Al: 6% or less, REM (rare earth metal): 0.2% or less and Ca: 0.1% or less, the remainder being Fe and unavoidable impurities, wherein area ratio in percentage of recrystallized grains formed by heating after cold working is from 10 to 80%.

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Patent Owner(s)

Patent OwnerAddress
NIPPON STEEL STAINLESS STEEL CORPORATIONTOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hori, Yoshiaki Yamaguchi, JP 67 441
Nakamura, Sadayuki Yamaguchi, JP 32 201
Oku, Manabu Yamaguchi, JP 30 119

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