標準 牌號 化學成分(%) C Si Mn P S GB/T5312 320 ≤0.16 ≤0.35 0.40~0.70 ≤0.035 ≤0.035 360 ≤0.17 ≤0.35 0.40~0.80 ≤0.035 ≤0.035 410 ≤0.21 ≤0.35 0.40~1.20 ≤0.035 ≤0.035 460 ≤0.22 ≤0.35 0.80~1.40 ≤0.035 ≤0.030 490 ≤0.23 ≤0.35 0.80~1.50 ≤0.035 ≤0.030 注:殘余元素Cr≤0.25%,Mo≤0.10%,Ni≤0.30%,Cu≤0.30%總量≤0.70% 本文地址:http://www.mszf86.com/cbywfggnews.asp?id=102,轉載請注明!