牌號(hào) | Carpenter Stainless Type 347 |
廠家 | Carpenter Technology Corporation |
分類 | Steel |
介紹 | Carpenter Stainless Type 347 is a columbium/tantalum stabilized austenitic stainless steel. Like Type 321, it has superior intergranular-corrosion resistance compared to typical 18-8 type alloys. Since columbium and tantalum have stronger affinity for carbon than chromium, carbides of those elements tend to precipitate randomly within the grains instead of forming continuous patterns at the grain boundaries. Type 347 should be considered for applications requiring intermittent heating between 800°F (427°C) and 1650°F (899°C). Type 347 should be considered for use in aircraft collector rings and exhaust manifolds, expansion joints and high temperature chemical process equipment. |
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