Form This specification covers a corrosion and heat-resistant nickel alloy in the form of bars@ forgings@ and flash welded rings up to 4.00 inches@ including (101.6 mm@ including) in nominal diameter or least distance between parallel sides@ and stock of any size for forging or flash welded rings (see 8.5). Application These products have been used typically for parts requiring high strength in the range 800 ??to 1100 ??(427 ??to 593 ??@ but usage is not limited to such applications.