| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot-forged product with no lead added, having equivalent characteristics to the hot-forged product containing lead. SOLUTION: This hot-forged product with no lead added, comprises 0.08-0.61% C, 0.02-1.00% Si, 0.20-2.00% Mn, 0.08-0.35% S, and the balance Fe with unavoidable impurities. The product preferably includes one or more elements selected among 0.1-2% Cr, 0.05-1% Mo, 0.1-3.5% Ni, 0.01-0.5% V, 0.01-0.1% Nb, 0.01-0.1% Ti, 0.0005-0.01% B, 0.0005-0.02% Ca, 0.0003-0.02% Mg, 0.01-0.3% Bi, 0.003-0.01% Te, 0.003-0.01% Se, 0.0003-0.01% Zr, 0.001-0.1% Hf, and 0.001-0.1% REM. COPYRIGHT: (C)2003,JPO
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