718 l High Temperature Aerospace Alloys l Product Line 718 alloy is a high strength nickel base superalloy used from cryogenic temperatures up to long term service at 1200°F.  The 718 alloy is readily fabricated and may be welded in either the annealed or precipitation (age) hardened condition. Inventory Form AMS DIN G.E. PWA ASME ASTM Plate Sheet Bar Welding Products Sheet/plate Bar Wire 5596 5662 5832 2.4668 B50TF14A B50TF15A SB-637 B 670 B 637  VIEW 718 DATA SHEET   GET A QUOTE ON 718