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P355GHとP355NH

2019-11-03View Original

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P355GHの「GH」とはどういう意味ですか? P355NHの「NH」とは何ですか?
Reply #22020-12-20
Pは圧力容器用鋼を、355は降伏強度を、Gはその他の性能を、Hは高温用鋼を表し、したがってGHはその他の性能が求められる高温用鋼を意味します;Nは焼きなましまたは焼きなまし圧延を意味し、したがってNHは高温用の焼きなまし鋼を指し、通常は結晶粒が細かく、溶接性も良好です。これはヨーロッパ規格の命名体系で、命名方法はEN10027を参照してください。材料の性能については、P355GHの場合はEN10028-2、P355NHの場合はEN10028-3をご覧ください。

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