Forgings, Fasteners, Boltings, Stud Bolts, Screws, Nuts
ASTM B473 specification covers UNS N08020, UNS N08026, and UNS N08024 bar and wire other than required for reforging.
|UNS||C, max||Mn, max||P, max||S, max||Si, max||Ni||Cr||Mo||Cu||Nb + Ta||N||Fe|
|UNS N08026||0.03||1.00||0.03||0.03||0.50||33.00 to 37.20||22.00 to 26.00||5.00 to 6.70||2.00 to 4.00||...||0.10 to 0.16||remainderA|
|UNS N08020||0.07||2.00||0.045||0.035||1.00||32.00 to 38.00||19.00 to 21.00||2.00 to 3.00||3.00 to 4.00||8 × C-1.00||...||remainderA|
|UNS N08024||0.03||1.00||0.035||0.035||0.50||35.00 to 40.00||22.50 to 25.00||3.50 to 5.00||0.50 to 1.50||0.15 to 0.35||...||remainderA|
|Condition||Diameter or Thickness, in. (mm)||Tensile Strength, min||Yield Strength, min||Elongation in 2 in (50.8 mm), min, %||Reduction of area, min, %|
|Annealed, hot finished or cold finished||All||80||551||35||241||30.0B||50|
|Annealed, strain-hardened||Up to 2 (50.8) incl||90||620||60||415||15||40|
The product of UNS N08020 alloy shall be furnished in the stabilized-annealed condition. The product of UNS N08026 alloy shall be furnished in the solution-annealed condition. The product of UNS N08024 alloy shall be furnished in the annealed condition.
NOTE 2-The recommended annealing temperatures all followed by quenching in water or rapidly cooling by other means are as follows: 1700 to 1850°F (927 to 1010°C) for UNS N08020, 2050 to 2200°F (1121 to 1204°C) for UNS N08026, and 1925 to 1975°F (1052 to 1079°C) for UNS N08024.
|S1||Corrosion Tests for UNS N08020|