Chemical Composition

Identification Symbol	Grade	Elements	Composition %
Alloy 201	26 chromium, 6 nickel, 3.5 molybdenum with nitrogen and copper 255	Nickel, minA	99.0
		Copper, max	0.25
		Iron, max	0.40
		Manganese, max	0.35
		Carbon, max	0.02
		Silicon, max	0.35
		Sulfur, max	0.01

Mechanical Properties

Condition and Diameter or Distance Between Parallel Surfaces, in. (mm)	Tensile Strength, min, psi (MPa)	Yield Strength (0.2 % offset), min. psi (MPa)A	Elongation in 2 in. or 50 mm or 4D,min %
Hot-worked::
Hot-worked:	50 000 (345)	10 000 (70)	40C
Annealed:
All products, all sizes	50 000 (345)	10 000 (70)	40B