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礦工鋼的力學工藝
2019-6-19
來源:未知
點擊數: 3196          作者:未知

  • 牌號

    性能

    工藝性能

     

    屈服點ós /MPa

    抗拉強度ób /MPa

    伸長率δ5 (%)

    冷彎試驗 180°

    16Mn

    ≥345

    ≥510

    ≥21

    ≥d=2a

    20MnK

    ≥355

    ≥510

    ≥18

    ≥d=2a

    Q275b Q275

    ≥275

    490~610

    ≥20

    ≥d=3a

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