HEAT-RESISTANT AUSTENITIC STEEL HAVING HIGH RESISTANCE TO STRESS RELAXATION CRACKING
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United States of America Patent
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Issued Date -
Sep 20, 2012
app pub date -
Jul 20, 2010
filing date -
Jul 22, 2009
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Abstract
An austenitic steel not susceptible to relaxation cracking, with composition comprising, in percentages by weight: 0.019% ≦C ≦0.030%, 0.5% ≦Mn ≦2%, 0.1% ≦Si ≦0.75%, Al >0.25%, 18% ≦Cr ≦25%, 12% ≦Ni ≦20%, 1.5% ≦Mo ≦3%, 0.001 %
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