ボイラー用材料についてですが、どのような材料を溶接評価する際に衝撃試験が必要になるのでしょうか。
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ボイラー用材料 15CrMoG 12Cr1MoVG SA213T91 SA213T92、SA335P91 SA335P92について、これらの材料を用いた溶接評価時には衝撃試験が必要でしょうか。
鍋規格P20 4.3.2.2を見る
鍋規とは何の略称ですか？大神、ありがとうございます。
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