... 之间;F×DI≥2×t,其中,F为硼钢淬透性因子;t为成品钢板厚度;DI=0.311C 1/2 (1+0.64Si)×(1+4.10Mn)×(1+0.27Cu)×(1+0.52Ni)×(1+2.33Cr)×(1+3.14Mo)×25.4(mm); ...
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