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2019-09-20View Original

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Gostaria de perguntar aos especialistas: os peças forjadas Q345 devem ser escritas como Q345Ⅱ ou 16MnⅡ?

Reply #22019-09-20

NB/T 47008-2017: apenas 16MnⅡ

Reply #32019-09-20

Acho que, de acordo com a designação do material, deve ser Q345RII

Reply #42019-09-20

Acho que, de acordo com a designação do material, deve ser Q345RII

Reply #52019-09-20

O novo padrão não está cancelando a categoria de 16 MN?

Reply #62019-09-21

Agora não é tudo Q345? Deve ser o Q345R, não é?

Reply #72019-09-21

Forjados de aço carbono e aço de baixa liga, ver 47008

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