Forgings, Fasteners, Boltings, Stud Bolts, Screws, Nuts
ASTM B335 specification covers rod of nickel-molybdenum alloys (UNS N10001, N10665, N10675, N10629, and N10624)* as shown in Table 1, for use in general corrosive service.
The following products are covered under this specification:
Rods 5⁄16 to 3⁄4 in. (7.94 to 19.05 mm) excl in diameter, hot or cold finished, solution annealed and pickled or mechanically descaled.
Rods 3⁄4 to 31⁄2 in. (19.05 to 88.9 mm) incl in diameter, hot or cold finished, solution annealed, ground or turned.
| Composition Limits, % | Element | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UNS | Ni | Mo | Fe | Cr | C, max | Si, max | S, max | Mn, max | P, max | S, max | Vanadium | Ni + Mo | Al | Nb, max | Cu, max | Ta, max | Ti, max | W, max | Zr, max | Mg, max |
| UNS N10001 | remainderA | 26.0-30.0 | 4.0-6.0 | 1.0 max | 0.05 | 1.0 | 2.5 | 1.0 | 0.04 | 0.03 | 0.2-0.4 | ... | ... | ... | ... | ... | ... | ... | ... | ... |
| UNS N10665 | remainderA | 26.0-30.0 | 2.0 max | 1.0 max | 0.02 | 0.10 | 1.0 | 1.0 | 0.04 | 0.03 | ... | ... | ... | ... | ... | ... | ... | ... | ... | ... |
| UNS N10675 | 65.0 min | 27.0-32.0 | 1.0-3.0 | 1.0-3.0 | 0.01 | 0.10 | 3.0 | 3.0 | 0.030 | 0.010 | 0.20 max | 94.0-98.0 | 0.50 max | 0.20 | 0.20 | 0.20 | 0.20 | 3.0 | 0.10 | ... |
| UNS N10629 | remainderA | 26.0-30.0 | 1.0-6.0 | 0.5-1.5 | 0.01 | 0.05 | 2.5 | 1.5 | 0.04 | 0.01 | ... | 0.1-0.5 | 0.5 | ... | ||||||
| UNS N10624 | Bal | 21.0-25.0 | 5.0-8.0 | 6.0-10.0 | 0.01 | 0.10 | 1.0 | 1.0 | 0.025 | 0.01 | ... | ... | 0.5 | ... | 0.5 | ... | ... | ... | ... | ... |
| UNS | Thickness, in. (mm) | Tensile Strength, min, psi (MPa) |
Yield Strength (0.2 % Offset), min, psi (MPa) |
Elongation in 2 in. (50 mm) or 4DA , min % |
Rockwell Hardness, max |
|---|---|---|---|---|---|
| N10001 | 5⁄16 to 11⁄2 (7.94 to 38.1) incl | 115 000 (795) | 46 000 (315) | 35 | . . . |
| Over 11⁄2 to 31⁄2 (38.1 to 88.9) incl | 100 000 (690) | 46 000 (315) | 30 | . . . | |
| N10665 | 5⁄16 to 31⁄2 (7.94 to 88.9) incl | 110 000 (760) | 51 000 (350) | 40 | . . . |
| N10675 | 5⁄16 to 31⁄2 (7.94 to 88.9) incl | 110 000 (760) | 51 000 (350) | 40 | . . . |
| N10629 | 5⁄16 to 31⁄2 (7.94 to 88.9) incl | 110 000 (760) | 51 000 (350) | 40 | 100 HRB |
| N10624 | 5⁄16 to 31⁄2 in. (7.94 to 88.9 mm), incl | 104 000 (720) | 46 000 (320) | 40 | 100 HRB |