化学成分锰 Mn:0.40~0.70磷 P:≤0.030硫 S:≤0.030铬 Cr:0.35~0.65镍 Ni:1.60~2.00钼 Mo:0.20~0.30铜 Cu:≤0.30产品名称规格/mm材质冷拉光圆Ф3.0-10020CrNi2Mo20CrNi2Mo热轧圆钢Ф100-20020CrNi2Mo热轧圆钢Ф20-10020CrNi2Mo热轧圆钢Ф200-40020CrNi2Mo20CrNi2Mo