海量資源,盡在掌握
 (表1-30)表1-30碳素鋼的各種硬度值與抗拉強度對應值布氏硬度HB洛氏硬度維氏硬度HV肖氏硬度HS碳素鋼的抗拉強度σb近似值/MPaHRAHRBHRC 85.685.385.0 68.067.567.0940920900979695 76775774573372271069868484.784.484.183.883.483.082.682.2 66.465.965.364.764.063.3 (共 1606 字) [閱讀本文] >>