| 摘要 |
<p>A heat resisting alloy for use in exhaust valves low in price and excellent in the cold workability and possible to be formed into valve shapes through the cold or warm working, which consists by weight percentage of C: 0.01 @ 0.1 %, Si </= 2 %, Mn </= 2 %, Cr: 12 @ 25 %, Nb+Ta: 0.2 @ 2.0 %, Ti </= 3.5 %, Al: 0.5 @ 3.0 %, Ni: 25 @ 45 %, Cu: 0.1 @ 5.0 %, optionally at least one element selected from W </= 3 %, Mo </= 3 %, and V </= 1 % with (1/2W+Mo+V) </= 3 %, Co </= 5 % with Ni+Co: 25 @ 45 %, Ca+Mg: 0.001 @ 0.01 %, one or both of B </= 0.01 % and Zr: 0.001 @ 0.1 % , and the balance of Fe and incidental impurities.</p> |
