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Elmet Technologies
Aperam Resistohm® Y Resistant Alloys Iron-Chromium-Aluminium Alloys
Categories: Metal; Ferrous Metal

Material Notes: It deals with Iron-Chromium-Aluminium alloy with a content of Yttrium. It can be used in oxidized atmosphere up to 1300°C inside electric furnaces, and especially when a high resistance to oxidation is required. We recommend to operate a preoxidation of the spirals at a temperature of 1100 °C during 2 hours when the future operating temperature is below 1000 °C. As for the others Iron-Chromium-Aluminium, the layer of Aluminium oxide protects against any chemical attacks. The Yttrium content improves the adhesive power of this oxidation layer and decrease the risk of attacks from other oxides or carbides. The Yttrium presence prevents from a too rapid grain growth and contributes significantly in the fact that after a long time of utilization, the wire will not become fragile. Compared to traditional Iron-Chromium-Aluminiumalloys, this one has a very good behavior to creeping. In addition, it has a very good life-time, especially, at very high temperature and with important thermal cycles.

Information provided by Aperam

Vendors:
Available Properties
  • Density
  • Hardness, Vickers
  • Tensile Strength
  • Tensile Strength, Yield
  • Elongation at Break, on 100 mm
  • Volume Resistivity, Temperature coefficient = 0.0001/°C from 20 - 100°C
  • CTE, linear
  • Thermal Conductivity
  • Melting Point
  • Maximum Service Temperature, Air
  • Aluminum, Al
  • Chromium, Cr
  • Iron, Fe
  
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