| 700XX is used as a mold material in the glass container industry and other high temperature controlled heat transfer applications which experience severe wear conditions at elevated temperatures. The higher nickel content gives 700XX increased resistance to wear and corrosion compared to alloy 690, thereby making this alloy an excellent choice for neck rings and bottom plates 700XX is effective in the extremely corrosive atmosphere of glass bottle production. However, when using 700XX, avoid using a sulfur based swabbing compound as a release agent. When the sulfur in the swabbing compound comes into contact with 700XX time after time on a production cycle, a reaction called dezincification occurs. Sulfur attacks the zinc content in 700XX, thus creating pits on the surface. To increase component cycle life, always use a non-sulfur swabbing compound on both the blank and finish side of operations. Information provided by Erie Bronze & Aluminum Co. |
