日本SKH51鋼、現(xiàn)貨:圓棒、板材、鍛件、特殊尺寸可訂貨! 標(biāo)準(zhǔn)JIS SKH51高速鋼 SKH51化學(xué)成分: C 0.80~0.9 Mn 0.15~0.40 Si 0.2~0.45 Cr 3.80~4.4 Mo 4.5~5.5 V 1.75~2.2 W 5.5~6.75 P ≤0.030 S ≤0.030 Ni ≤0.3 Cu ≤0.25