Chemical Composition

Grade Symbol	Elements	Composition %
Alloy 825	Nickel	38.0–46.0
	Copper	1.5–3.0
	Iron	22.0 minA
	Manganese	1.0 max
	Carbon	0.05 max
	Silicon	0.05 max
	Sulfur	0.03
	Chromium	19.5–23.5
	Aluminum	0.2 max
	Titanium	0.6–1.2
	Columbium(Nb) +tantalum	-
	Molybdenum	2.5–3.5
	Phosphorus	-
	Tungsten	-
	Cobalt, max	-
	Vanadium, max	-
	Nitrogen	-
	Boron	-
	Lanthanum	-
	Aluminum + Titanium	-
	Nickel + Molybdenum	-
	Columbium(Nb) max	-
	Tantalum	-
	Zirconium, max	-
	Cerium	-
	Yttrium	-

Mechanical Properties

Maximum Section Thickness, in. (mm)	Tensile Strength, min ksi [MPa]	Yield Strength, min ksi [MPa]	Elongation in 2 in. or 50 mm, min, %
-	85 (586)	35 (241)	30