Chemical Composition

Identification Symbol	Grade	Elements	Composition %
UNS C63000	26 chromium, 6 nickel, 3.5 molybdenum with nitrogen and copper 255	Aluminum	9.0–11.0 max
		Copper, incl silver	remainder
		Iron	2.0–4.0 max
		Nickel, incl cobalt	4.0–5.5
		Manganese	1.5
		Silicon	0.25
		Tin	0.20
		Zinc, max	0.30
		Lead, max	-
		Arsenic, max	-
		Phosphorus, max	-

Mechanical Properties

Diameter or Distance Between Parallel Surfaces,A in. [mm]	Tensile Strength, min ksi [MPa]	Yield Strength, min ksi [MPa], at 0.5 % Extension Under Load	Elongation in 4 3 Diameter or Thickness of Specimen min, %B
over 1⁄2 [12] to 1 [25], incl	100 [690]	50 [345]	5
over 1 [25] to 2 [50], incl	90 [620]	45 [310]	6
over 2 [50] to 3 [80], incl	85 [585]	42.5 [295]	10