| 摘要 |
PURPOSE:To obtain the high-strength alloy for an exhaust valve having superior hot workability, by providing an Ni-base heat resisting alloy having a specific chemical composition. CONSTITUTION:The alloy for an exhaust valve consists of, by weight, 0.01-0.15% C, <2% Si, <2.5% Mn, 15-25% Cr, 0.5-5% (Mo+1/2W), 0.3-3% (Nb+Ta), 1.5-3.5% Ti, 0.5-2.5% Al, 0.001-0.02% B, <5% Fe, and the balance Ni; Co can be substituted for a part of Ni.
|
