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.
690 is used as a mould material in the glass container industry and other high temperature controlled heat transfer applications with severe wear conditions at elevated temperatures. Although slightly more susceptible to sulfur corrosion than 700XX, the ability to maintain consistent linear expansion during the heating and cooling cycles makes alloy 690 the perfect choice for glass container bottle moulds.
