| 摘要 |
PROBLEM TO BE SOLVED: To provide a nuclear waste storage vessel obtained by melting boron- containing alloy steel or boron-containing austenitic stainless steel, using inert gas such as nitrogen and argon and producing powder through atomization and processing the powder with HIP or CIP as filling the powder in the austenitic stainless steel plate vessel. SOLUTION: The waste storage vessel made of boron-containing steel for nuclear facilities is produced by melting steel with compositions consisting of one, two or more kinds of steels with B: 0.05 to 5.0% weight percent or steel with C: 3.0% or less, B: 0.05 to 5.0% and Si: 5.0% or less, Mn: 10.0% or less, Ni: 3.0% or less, Cr: 3.0% or less, Mo: 10.0% or less, or one, two or more kinds of steels with C: 3.0% or less, Cr: 10.0 to 30.0%, B: 0.05 to 5.0% and Si: 5.0% or less, Mn: 10.0% or less, Ni: 35.0% or less, MO: 10.0% or less and Fe in residual part and unavoidable impurity, producing powder by atomization using inert gas such as nitrogen and argon and obtaining the powder through HIP or CIP process as filling the powder in the austenitic stainless steel vessel.
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