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Q235、Q345、20#の使用

2015-12-24View Original

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Q235、Q345、20#を使用する際の違いは何ですか?Q235、Q345を鋼構造として使用する際、その選定基準は何ですか?
Reply #22015-12-24
材料の機械的性質、強度でしょう
Reply #32015-12-25
Q235の中で:Qは降伏強度を表し、235は材料の降伏強度が235MPaであることを示します; Q345も同様に; 20#は炭素含有量が0.2%で、多くは管材です。 構造用鋼としては、ほとんどがQ235Aが使用されます。

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