Blog
  2. ASTM
  3. Bar Stock
  4. ASTM B865 Specification

ASTM B865 Specification

Forgings, Fasteners, Boltings, Stud Bolts, Screws, Nuts

Scope

ASTM B865 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.

Related Specifications of ASTM B865

ASTM B865 Chemical Composition

Element NiA Al C Fe Mn Si Ti S Cu
Composition Limits, % 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
Product (check) analysis variations, under
min or over max, of the specified limit of element, %		 0.45 0.20 0.01 0.05 0.04 0.03 0.03 min 0.04 max 0.003 0.15 min 0.20 max
  • A The nickel content shall be determined arithmetically by difference.

ASTM B865 Mechanical Requirements

UnagedA (Bar, Rod, Forgings)

Form Condition Hardness
Brinell 3000 kg, max Rockwell, max
Rounds,B hexagons, squares, rectangles, and forgings Hot-worked 245 C23
Hexagons Cold-worked 260 C26
Rounds:      
⁄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
  • 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.

Age-HardenedA (Bar, Rod, and Forgings)

Form Condition Maximum Section Thickness, in. (mm) Tensile Strength, min, ksi (MPa) Yield StrengthB, 0.2 % offset, min, ksi (MPa) ElongationB in 2 in. or 4D, min,% HardnessC
Brinell 3000 kg, min Rockwell C, min
RoundsD, hexagons, squares, rectangles, and forgingsE Hot-worked and agehardened 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 agehardened 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-hardenedF Up to 1 (25.4) 130 (895) 90 (620) 20.0 250 24
1 (25.4) and over 130 (895) 85 (585) 20.0 250 24
  • A. Age hardening heat treatment: Age hardening shall be accomplished by holding at an aim temperature of 1100°F (595°C) for 8 to 16 h followed by furnace cooling to 900°F (480°C) at a rate of 15 to 25°F (10 to 15°C) per hour and then air cooling. An alternate procedure consists of holding at 1100°F (595°C) for up to 16 h, furnace cooling to 1000°F (540°C), holding for approximately 6 h, furnace cooling to 900°F (480°C), holding for approximately 8 h, and air cooling to room temperature. (Mill age-hardened products have been precipitation heat treated by the manufacturer and further thermal treatment normally is not required. Hot-worked, cold-worked, or annealed material is normally age hardened by the purchaser after forming or machining.)
    B. Not applicable to subsize tensile specimens less than 0.250 in. (6.4 mm) in diameter.
    C. Hardness values are given for information only and are not the basis for acceptance or rejection.
    D. Rounds over 41⁄4 in. (108.0 mm) in diameter shall have an elongation in 2 in. (50.8 mm) or 4D of 17 %, min.
    E. When specified, for forged rings and discs, hardness measurements may be utilized in lieu of tensile test.
    F. Applicable to both hot-worked and cold-worked material.

Tensile Strength

Condition and Size, in. (mm) Tensile Strength, min, ksi (MPa)
Cold-worked, as-worked, all sizes 110-155 (760-1070)A
Cold-worked and annealed, all sizes 110 (760)B
Cold-worked, spring temper, as-drawn 0.057 (1.45) and lessC 165 (1140)
Over 0.057 to 0.114 (1.45 to 2.90), incl 155 (1070)
Over 0.114 to 0.229 (2.90 to 5.82), incl 150 (1035)
Over 0.229 to 0.312 (5.82 to 7.92), incl 145 (1000)
Over 0.312 to 0.375 (7.92 to 9.52), incl 135 (930)
Over 0.375 to 0.437 (9.52 to 11.10), incl 125 (860)
Over 0.437 to 0.563 (11.10 to 14.30), incl 120 (825)
Cold-worked, annealed, and age-hardened,D all sizes 130 (895)
Cold-worked, as drawn, age-hardened,D all sizes 155 (1070)
Cold-worked, spring temper, and age-hardenedD Up to 0.114 (2.90), incl 180 (1240)
Over 0.114 to 0.375 (2.90 to 9.52), incl 170 (1170)
Over 0.375 to 0.563 (9.52 to 14.30), incl 160 (1105)
  • A Maximum and minimum.
    B Maximum.
    C Applicable to material in coil. For material in straightened and cut lengths, deduct 15 ksi (105 MPa) from above values.
    D Age hardening heat treatment:
    Age hardening shall be accomplished by holding at an aim temperature of 1100°F (595°C) for 8 to 16 h followed by furnace cooling to 900°F (480°C) at a rate of 15 to 25°F (10 to 15°C) per hour and then air cooling. An alternate procedure consists of holding at 1100°F (595°C) for up to 16 h, furnace cooling to 1000°F (540°C), holding for approximately 6 h, furnace cooling to 900°F (480°C), holding for approximately 8 h, and air cooling to room temperature.
    (Mill age-hardened products have been precipitation heat treated by the manufacturer and further thermal treatment is not normally required. Hot-worked, cold-worked, or annealed material is normally age hardened by the purchaser after forming or machining.)
 

ASTM B865 Certifications

  • EN 10204 3.1
  • EN 10204 3.2
  • PED 2014/68/EC
  • MERKBLATT AD 2000 W2/W7/W10
  • API 20 E BSL 1/ BSL 2
  • NACE MR 0175
  • NACE MR 0103

ASTM B865 Supplementary Requirements

S1 Special End Uses