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硬度對照表(三)
硬度對照表(三)
抗拉強度(Rm N/mm2) 維氏硬度(HV)       布氏硬度(HB)         洛氏硬度(HRC)
1700                                      520                  (494)                        50.5
1740                                      530                  (504)                        51.1
1775                                      540                  (513)                        51.7
1810                                      550                  (523)                        52.3
1845                                      560                  (532)                        53.0
1880                                      570                  (542)                        53.6
1920                                      580                  (551)                        54.1
1955                                      590                  (561)                        54.7
1995                                      600                  (570)                        55.2
2030                                      610                  (580)                        55.7
2070                                      620                  (589)                        56.3
2105                                      630                  (599)                        56.8
2145                                      640                  (608)                        57.3
2180                                      650                  (618)                        57.8
                                           660                                               58.3
                                           670                                               58.8
                                           680                                               59.2
                                           690                                               59.7
                                           700                                               60.1
                                           720                                               61.0
                                           740                                               61.8
                                           760                                               62.5
                                           780                                               63.3
                                           800                                               64.0
                                           820                                               64.7
                                           840                                               65.3
                                           860                                               65.9
                                           880                                               66.4
                                          900                                               67.0
                                          920                                               67.5
                                          940                                               68.0
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