420不锈钢粉 Grade 合金型号 ChemicalComposition(wt%)化学成分 Fe Cr Ni Mo Cu Si Mn C 304L Bal 18-20 8-12 / / ≤1 ≤2 ≤0.03 310S Bal 24-26 19-22 / / ≤1 ≤2 ≤0.08 316L Bal 16-18 10-14 2-3 / ≤1 ≤2 ≤0.03 2205 Bal 21-23 4.5-6.5 2.9-3.5 ≤1 ≤2 ≤0.03 2209 Bal 21.5-23.5 7.5-9.5 2.5-3.5 ≤0.75 ≤1 ≤2 ≤0.03 420 Bal 12-14 0.4-.06 / / ≤1 ≤1 0.3-0.4 430L Bal 16-18 / / / ≤1 ≤1 ≤0.03 17-4PH Bal 15.5-17.5 3-5 Nb:0.15/0.45 3-5 ≤1 ≤1 ≤0.07 15-5PH Bal 14-15.5 3.5-5.5 - 2.5-4.5 ≤1 ≤1 ≤0.07