ASTM B166 Specification

Scope

This specification2 covers nickel-chromium-iron alloys (UNS N06600, N06601, N06603, N06690, N06693, N06025, and N06045)* and nickel-chromium-cobalt-molybdenum alloy (UNS N06617) in the form of hot-finished and cold-worked rounds, squares, hexagons, rectangles, 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 Composition

ElementComposition Limits, %
Alloy N06600Alloy N06601Alloy N06617Alloy N06690Alloy N06693Alloy N06025Alloy N06045Alloy N06603
Nickel72.0 min58.0-63.044.5 min58.0 minremainderAremainderA45.0 minremainderA
Chromium14.0-17.021.0-25.020.0-24.027.0-31.027.0-31.024.0-26.026.0-29.024.0-26.0
Cobalt10.0-15.0
Molybdenum8.0-10.0
Iron6.0-10.0remainder3.0 max7.0-11.02.5-6.08.0-11.021.0-25.08.0-11.0
Manganese1 .0 max1.0 max1.0 max0.5 max1.0 max0.15 max1.0 max0.15 max
Aluminum1.0-1.70.8-1.52.5-4.01.8-2.42.4-3.0
Cartlon0.15 max0.10 max0.05-0.150.05 max0.15 max0.15-0.250.05-0.120.20-0.40
Copper0.5 max1.0 max0.5 max0.5 max0.5 max0.1 max0.3 max0.50 max
Silicon0.5 max0.5 max1.0 max0.5 max0.5 max0.5 max2.5-3.00.50 max
Sulfur0.015 max0.015 max0.015 max0.015 max0.01 max0.010 max0.010 max0.010 max
Titanium0.6 max1.0 max0.1-0.20.01-0.25
Phosphorus0.020 max0.020 max0.20 max
Zirconium0.01-0.100.01-0.10
Yttrium Boron0.006 max0.05-0.120.01-0.15
Nitrogen
Niobium0.5-2.5
Cerium0.03-0.09

Note :

A. Element shall be determined arithmetically by difference.

Mechanical Properties for Rod and Wire, Annealed Condition

Condition and Diameter or Distance Between Parallel Surfaces, in. (mm)Tensile Strength, min, psi (MPa)Yield Strength (0.2 % offset), min, psi (MPa)Elongation in 2 in. or 50 mm or 4D, min,%
UNS N06600:
Cold-worked (as worked):   
Rounds:   
Under 1⁄2 (12.7)120 000 (825)90 000 (620)7A
1⁄2 to 1 (12.7 to 25.4), incl110 000 (760)85 000 (585)10
Over 1 to 21⁄2 (25.4 to 63.5), incl105 000 (725)80 000 (550)12
Squares, hexagons, and rectangles:   
1⁄4 (6.4) and under100 000 (690)80 000 (550)5A
Over 1⁄4 to 1⁄2 (6.4 to 12.7), excl95 000 (655)70 000 (480)7
Hot worked (as worked):   
Rounds:   
1⁄4 to 1⁄2 (6.4 to 12.7), incl95 000 (655)45 000 (310)20
Over 1⁄2 to 3 (12.7 to 76.2), incl90 000 (620)40 000 (275)25
Over 3 (76.2)85 000 (585)35 000 (240)30
Squares, hexagons, and rectangles:   
All sizes85 000 (585)35 000 (240)20
Rings and disksB
Cold-worked (annealed) or hot-worked (annealed):   
Rods and bars, all sizes80 000 (550)35 000 (240)30A
Rings and disksC
Forging Quality:   
All sizesDDD
UNS N06601:
Cold-worked (annealed) or hot-worked (annealed):   
All products, all sizes80 000 (550)30 000 (205)30
Forging Quality:DDD
UNS N06617:
Cold-worked (annealed) or hot-worked (annealed):   
All products, all sizes95 000 (655)35 000 (240)35
Forging Quality:DDD
UNS N06690:
Cold-worked (as worked):   
Rounds:   
Under 1⁄2 (12.7)120 000 (825)90 000 (620)7A
1⁄2 to 1 (12.7 to 25.4), incl110 000 (760)85 000 (585)10
Over 1 to 21⁄2 (25.4 to 63.5), incl105 000 (725)80 000 (550)12
Squares, hexagons, and rectangles:   
1⁄4 (6.4) and under100 000 (690)80 000 (550)5A
Over 1⁄4 to 1⁄2 (6.4 to 12.7), excl95 000 (655)70 000 (480)7
Hot worked (as worked):   
Rounds:   
1⁄4 to 1⁄2 (6.4 to 12.7), incl95 000 (655)45 000 (310)20
Over 1⁄2 to 3 (12.7 to 76.2), incl90 000 (620)40 000 (275)25
Over 3 (76.2)85 000 (585)35 000 (240)30
Squares, hexagons, and rectangles:   
All sizes85 000 (585)35 000 (240)20
Rings and disksB
Cold-worked (annealed) or hot-worked (annealed):   
Rods and bars, all sizes85 000 (586)35 000 (240)30A
Rings and disksC
Forging Quality:   
All sizesDDD
UNS N06693:
Cold-worked (annealed) or hot-worked (annealed):   
Rods and bars, all sizes100 000 (690)50 000 (345)30
Forging Quality:   
All sizesDDD
UNS N06603:
Cold-worked (annealed) or hot-worked (annealed):   
All products, all sizes94 000 (650)43 000 (300)25
Forging Quality:   
All sizesDDD
UNS N06025:   
Cold-worked (annealed) or hot-worked (annealed):   
All products, all sizes98 000 (680)39 000 (270)30
Forging Quality:   
All sizesDDD
UNS N06045:   
Cold-worked (annealed) or hot-worked (annealed):   
All products, all sizes90 000 (620)35 000 (240)35
Hot-worked (Annealed):E   
Rods and bars, all sizes75 000 (517)30 000 (207)30
Forging Quality:   
All sizesDDD

Note :

A. Not applicable to diameters or cross sections under 3⁄32 in. (2.4 mm).
B. Hardness B75 to B100, or equivalent.
C. Hardness B75 to B95, or equivalent.
D. Forging quality is furnished to chemical requirements and surface inspection only. No mechanical properties are required.
E. High-temperature annealed condition.

Mechanical Properties of Cold-Worked Wire in Coil (Alloys N06600 and N06690 Only)

Condition and Size, in, (mm)Tensile Strength, psi (MPa)Wrapping Test
MinMax
Annealed Under 0.032 (0.81)80 000 (552)115 000 (793)The wire shall be wrapped eight consecutive
turns in a closed helix (pitch approximately
equal to the diameter of the wire) around a
mandrel as follows:
(1) For all annealed and regular temper wire
and for spring temper wire 0.229 in. (5.82
mm) and less: Same as diameter of wire.
(2) For spring temper wire over 0.229 in.
(5.82 mm): Twice the diameter of wire.
The wire shall withstand the wrapping test
without fracture or development of a pebbled
or orange-peel surface.
0.032 (0.81) and over80 000 (552)105 000 (724)
Cold-worked, regular temper, all sizes120 000 (827)
Cold-worked, spring temper165 000 (1138)
Up to 0.057 (1.45), incl185 000 (1276)
Over 0.057 (1.45) to 0.114 (2.90), incl175 000 (1207)
Over 0.114 (2.90) to 0.229 (5.82), incl170 000 (1172)
Over 0.229 (5.82) to 0.329 (8.36), incl165 000 (1138)
Over 0.329 (8.36) to 0.375 (9.53), incl160 000 (1103)
Over 0.375 (9.53) to 0.500 (12.7), incl155 000 (1069)
Over 0.500 (12.7) to 0.563 (14.3), incl140 000 (965)

Note :

A. Properties are not applicable to wire after straightening and cutting.