高速工具鋼及模具、切削具刃堆焊條
牌號(hào)\化學(xué)成分 C Mn Si Cr Mo W V Co Ni 其它 硬度
D307 0.7-1.0 3.5-4.5 17-20 1.0-1.5 ≤1.5 ≥55
D317 0.7-1.0 3.0-4.0 3-5 4.5-6 1.5-3.0 ≤1.5 ≥50
D317A 0.3-0.8 0.5-1.0 0.3-0.6 3-4 2-4 6-8 1.5-2.5 58-62
D322 ≤0.5 ≤5.0 ≤2.5 7-10 ≤1.0 ≥55
D327 ≤0.5 ≤5.0 ≤2.5 7-10 ≤1.0 ≥55
D327A ≤0.5 5-6.5 2-3 2-3.5 1-3 ≥50
D337 ≤0.55 2-3.5 7-10 ≤1.0 ≥48
D386 ≤0.6 ≤3.0 ≤5 ≤3.0 ≥50
D397 ≤0.6 ≤2.5 ≤1.0 ≤2.0 ≤1.0 ≥40
D406 ≤0.5 ≤2.0 ≤2.0 ≤6 ≤5.0 ≤10 ≤2 ≤12 ≤2.0 ≈50
D417 0.5-0.9 ≤0.6 ≤0.8 3-5 5-10 1-2.5 0.8-1.5 ≤1.0 ≥55
D427 ≤0.8 ≤13 ≤11 ≤2 ≤2 ≥40
D437 ≈0.8 ≈15 ≈3 ≈4 ≥40
