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規格2.3 化学成分の項目に関する質問

2015-12-11View Original

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2.3.1 溶接用炭素鋼および低合金鋼 2.3.2 圧力容器専用鋼における炭素鋼および低合金鋼 なぜ二つのカテゴリーに分けるのか、これら二つの概念にはどのような違いがあるのか?
Reply #22015-12-11
例えば、構造用のQ345B、C、Dと、容器用の板のQ345Rといった違いです
Reply #32015-12-12
圧力容器用鋼には専用の規格があり、要求もより厳しい。上の一文は一般的な材料についての説明で、圧力が低い場合には専用の鋼材を使わなくてもよいのです。

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