ASTM B865

This specification covers nickel-copper-aluminum alloy(UNS N05500) in the form of rounds, squares, hexagons, or rectangles, and forgings and forging stock, manufactured either by hot working or cold working, and cold-worked wire.The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

Chemical Properties

Nickel^A	Aluminum	Carbon	Iron	Manganese	Silicon	Titanium	Sulfur	Copper
63.0 min	2.30–3.15	0.18 max	2.0 max	1.5 max	0.50 max	0.35–0.85	0.010 max	27.0–33.0

Note : A The nickel content shall be determined arithmetically by difference.

Mechanical Properties Unaged^A (Bar, Rod, Forgings)

Form	Condition	Hardness
Form	Condition	Brinell 3000 kg, max	Rockwell, max
Rounds,^B hexagons, squares, rectangles, and forgings	Hot-worked	245	C23
Hexagons	Cold-worked	260	C26
Rounds: 1⁄4 (6.4 mm) to 1 in. (25.4 mm), incl	Cold-worked	280	C29
Over 1 (25.4 mm) to 3 in. (76.2 mm), incl	Cold-worked	260	C26
Over 3 (76.2 mm) to 4 in. (101.6 mm), incl	Cold-worked	240	C22
Rounds, hexagons, squares, rectangles, and forgings	Hot-worked or coldworked and annealed	185	B90

Note:
A No tensile tests are required except as provided for in 9.2.3. B Rounds over 41⁄4 in. (108.0 mm) in diameter shall have hardness of 260 BHN,max.

Mechanical Properties Age-Hardened^A (Bar, Rod, and Forgings)

Form	Condition	Maximum Section Thickness, in. (mm)	Tensile Strength, min, ksi (MPa)	Yield Strength^B, 0.2 % offset, min, ksi (MPa)	Elongation^B in 2 in. or 4D, min,%	Hardness
Form	Condition	Maximum Section Thickness, in. (mm)	Tensile Strength, min, ksi (MPa)	Yield Strength^B, 0.2 % offset, min, ksi (MPa)	Elongation^B in 2 in. or 4D, min,%	Brinell 3000 kg, max	Rockwell, max
Rounds,^B hexagons, squares, rectangles, and forgings	Hot-worked and age-hardened	All sizes	140 (965)	100 (690)	20.0	265	27
Rounds	Cold-worked and age-hardened	1⁄4 (6.4) to 1 (25.4), incl	145 (1000)	110 (760)	15.0	300	32
		over 1 (25.4) to 3 (76.2), incl	140 (965)	100 (690)	17.0	280	29
		over 3 (76.2) to 4 (101.6), incl	135 (930)	95 (655)	20.0	255	25
Hexagons	Cold-worked and age-hardened	1⁄4 (6.4) to 2 (50.8), incl	140 (965)	100 (690)	15.0	265	27
Rounds, hexagons, squares,rectangles, and forgings	Annealed and age-hardened^F	Up to 1 (25.4)	130 (895)	90 (620)	20.0	250	24
Rounds, hexagons, squares,rectangles, and forgings	Annealed and age-hardened^F	1 (25.4) and over	130 (895)	85 (585)	20.0	250	24