Stainless austenitic low Ni alloy
An austenitic stainless steel alloy having the following composition in percent of weight (wt%): 0.02 ¤ C ¤ 0.06 Si < 1.0 2.0 ¤ Mn ¤ 6.0 2.0 ¤ Ni ¤ 4.5 17 ¤ Cr ¤ 19 2.0 ¤ Cu ¤ 4.0 0.15 ¤ N ¤ 0.25 0 ¤ Mo ¤ 1.0 0 ¤ W ¤ 0.3 0 ¤ V ¤ 0.3 0 ¤ Ti ¤ 0.5 0 ¤ Al ¤ 1.0 0 ¤ Nb ¤ 0.5 0...
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Main Authors | , |
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Format | Patent |
Language | English Polish |
Published |
31.08.2016
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Subjects | |
Online Access | Get full text |
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Summary: | An austenitic stainless steel alloy having the following composition in percent of weight (wt%): 0.02 ¤ C ¤ 0.06 Si < 1.0 2.0 ¤ Mn ¤ 6.0 2.0 ¤ Ni ¤ 4.5 17 ¤ Cr ¤ 19 2.0 ¤ Cu ¤ 4.0 0.15 ¤ N ¤ 0.25 0 ¤ Mo ¤ 1.0 0 ¤ W ¤ 0.3 0 ¤ V ¤ 0.3 0 ¤ Ti ¤ 0.5 0 ¤ Al ¤ 1.0 0 ¤ Nb ¤ 0.5 0 ¤ Co ¤ 1.0
the balance Fe and normally occurring impurities, characterized in that the contents of the alloying elements are balanced so that the following conditions is fulfilled:
Ni eqv -1.42*Cr eqv ¤ -13.42, wherein Cr eqv = % Cr + 2 * % Si + 1.5 * % Mo + 5 * % V + 5.5 * % Al + 1.75 * % Nb + 1.5 * % Ti + 0.75 * % W Ni eqv = % Ni + % Co + 0.5 * % Mn + 0.3 * % Cu + 25 * % N + 30 * % C
and
-70 °C < MD30 < -25 °C,wherein MD ¢ 30 = 551 - 462 * % C + % N - 9.2 * % Si - 8.1 * % Mn - 13.7 * % Cr - 29 * % Ni + % Cu - 68 * % Nb - 18.5 * % Mo |
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Bibliography: | Application Number: PL20090155355T |