小受呻吟GV视频在线观看

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    中低壓鍋爐管縱向力學性能

    時間:2011/5/12 10:47:33  作者:bongdi  來源:分享  查看:101  評論:1
    內容摘要: 中低壓鍋爐管縱向力學性能 標準                   &nbs...

    中低壓鍋爐管縱向力學性能

    標準                             牌號         抗拉強度(MPa)             屈服點(MPa)≥     伸長率(%) ≥    沖擊功(J)≥
    GB3087-1999            10             333-475                           196                             24                           -
    20                              392-588           245/226                        20                               -
    GB5310-1995            20G               410-550                         245                           24                          35
    20MnG                         ≥415                240                               22                             35
    25MnG                         ≥485                275                                20                            35
    15MoG                           450-600        270                                 22                            35
    20MoG                          ≥415               220                                 22                             35
    12CrMoG                    410-560            205                               21                               35
    15CrMoG                    440-640            235                               21                               35
    12Cr2MoG                  450-600            280                              20                                35
    12Cr1MoVG                470-640            255                              21                                35
    12Cr2MoWVTib          540-735           345                             18                                  35

     



       

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    小受呻吟GV视频在线观看

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