Alloy N (UNS N10003) is a nickel-base alloy . It has good oxidation resistance to hot fluoride salts in the temperature range of 1300 to 1600°F (704 to 871°C).HASTELLOY N alloy has good oxidation resistance in air. It shows promise for continuous operations at temperatures up to 1800°F (982°C). Intermittent use at temperatures up to 1900°F (1038°C) may also be possible. No discernible oxidation could be measured for the alloy at temperatures up to 1200°F (649°C).HASTELLOY N alloy can be supplied, to order, in the forms of sheet, plate, and bar.
Pipe nipples are sometimes referred to as barrel nipples which unless otherwise stated, are tapered NPT threaded at each end with an unthreaded section in the middle. Nipples that are threaded on both ends are commonly referred to as T.B.E which stands for threaded both ends. When looking at the lengths of the nipple, the length is specified by the overall length including the threads.
Alloy N/UNS N10003 of Chemical composition and mechanical properties