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       ο  ਪ঑Ճ޻৚݅ ʻϚϧνϚελʔߔՃ޻༻ϔουʼ                                            ҾுΓڧ͞       ߗ౓        ඃ࡟ࡐ
       λʔ/εϦ  ISO  ୸ૉ߯ɾர߯ɾշ࡟߯  ඃ࡟ࡐ   >= 0.25 %C         ম͖ೖΕɺম͖໭͠            [N/mm ]      HB       No.  (1)
                                                                                 2
                                                           ঢ়ଶ
                                      < 0.25 %C
                                                                               420
                                                                                          125
                                                          ম͖ͳ·͠
                                                                                                     1
                                                                               650
                                                                                          190
                                                                                                     2
                                                          ম͖ͳ·͠
                                                                               850
                                      < 0.55 %C
                                                                                                     3
                                                                                          250
                                                                               750
                                     >= 0.55 %C
                                                          ম͖ͳ·͠
                                                                                          220
                                                                                                     4
       εϩο  P  ௿߹ۚɾர߯(߹ۚ੒෼5%ҎԼ)                         ম͖ೖΕɺম͖໭͠             1000        300        5 6 7 8
                                                                                          200
                                                                               600
                                                          ম͖ͳ·͠
                                                                                          275
                                                                               930
                                                        ম͖ೖΕɺম͖໭͠
                                                                                          300
                                                                              1000
                                                                                                     9
                                                                                          200
                                                                               680
                                                          ম͖ͳ·͠               1200        350       10
               ߴ߹ۚ߯ɾர߯ɾ޻۩߯
                                                        ম͖ೖΕɺম͖໭͠             1100        325       11
                                                      ϑΣϥΠτ/ϚϧςϯαΠτ            680        200       12
               εςϯϨε߯ɾர߯
                                                         ϚϧςϯαΠτ               820        240       13
           M   εςϯϨε߯                                    ΦʔεςφΠτ               600        180       14
                                                       ϑΣϥΠτ/ύʔϥΠτ                        180       15
               ͶͣΈரమ(FC)
                                                          ύʔϥΠτ                           260       16
           K   ϊδϡϥʔரమ(FCD)                               ϑΣϥΠτ                           160       17
                                                          ύʔϥΠτ                           250       18
                                                          ϑΣϥΠτ                           130       19
               Մ஁ரమ
                                                          ύʔϥΠτ                           230       20
                                                           ඇߗԽ                            60        21
               ஁଄Ξϧϛχ΢Ϝ߹ۚ
                                                           ߗԽ                             100       22
                                      <=12% Si             ඇߗԽ                            75        23
               ர଄Ξϧϛχ΢Ϝ߹ۚ                                  ߗԽ                             90        24
           N                          >12% Si              ೤ॲཧ                            130       25
                                      >1% Pb               շ࡟ಔ                            110       26
               ಔ߹ۚ                                        ਅͪΎ͏                            90        27
                                                           ७ಔ                             100       28
                                                          ߹੒थࢷ                                      29
               ඇۚଐ
                                                          ߗ࣭ΰϜ                                      30
                                       Feج                ম͖ͳ·͠                           200       31
                                                           ߗԽ                             280       32
               ଱೤߹ۚ                                       ম͖ͳ·͠                           250       33
           S                         Ni ຢ͸Coج              ߗԽ                             350       34
                                                           ர଄                             320       35
                                                                              RM 400                36
               νλϯ߹ۚ
                                                        Ћ+Ќ߹ۚɹߗԽ             RM 1050                37
                                                          ম͖ೖΕ                           55 HRC     38
               ߴߗ౓߯
           H   νϧυரమ                                      ম͖ೖΕ                           60 HRC     39
                                                                                          400
                                                           ர଄
                                                                                                    40
               ரమ                                          ߗԽ                            55 HRC     41
            (1)  ඃ࡟ࡐʹ͍ͭͯ͸ɺK8-K22ทΛ͝ࢀরԼ͍͞ɻ













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