INDUSTRIAL
Power Plants, Chemical Industry, Mineral Oil Distillation Plants
| Element | Percentage (%) |
| Ni (Nickel) | 63.0 min |
| Cu (Copper) | 28.0 – 34.0 |
| Fe (Iron) | 2.5 max |
| Mn (Manganese) | 2.0 max |
| C (Carbon) | 0.3 max |
| Si (Silicon) | 0.5 max |
| S (Sulfur) | 0.024 max |
| Density | 8.82 g/cm³ (0.32 lb/in³) at 20°C |
ASTM B164
MONEL 400 / UNS N04400 / 2.4360 & 2.4361
| Heat Treatment | Tensile Strength
min, psi (MPa) |
Yield Strength
min, (0.2% offset) psi (MPa) |
Elongation
in 2 in. or 50 mm (or 4 D), min, % |
| Hot/cold worked (Annealed): Rod and Bar, all sizes | 70,000 (480) | 25,000 (170) | 35 |
| Cold-worked (as worked): Rounds under ½ | 110,000 (760) | 55,000 (380) | 8 |
| Cold-worked (as worked): Hexagons under 1/2 | 85,000 (585) | 30,000 (207) | 20 |
| Cold-worked (Stress-relieved): Rounds under 1/2 | 84,000 (580) | 50,000 (345) | 10 |
| Cold-worked (Stress-relieved): Rounds 1/2 to 3 1/2 | 84,000 (580) | 55,000 (380) | 10 |
| Cold-worked (Stress-relieved): Rounds over 3 1/2 to 4 | 84,000 (580) | 50,000 (345) | 20 |
| Cold-worked (Stress-relieved): Hexagons 2 and under | 80,000 (552) | 50,000 (345) | 20 |
| Cold-worked (Stress-relieved): Hexagons over 2 to 3 1/8 | 87,000 (600) | 60,000 (415) | 20 |
| Cold-worked (Stress-relieved): Hexagons over 2 1/8 to 4 | 75,000 (517) | 40,000 (276) | 30 |
| Hot-worked (Stress-relieved): Rounds up to 12 | 80,000 (552) | 40,000 (276) | 30 |
| Hot-worked (Stress-relieved): Rounds over 12 to 14 | 75,000 (517) | 40,000 (276) | 30 |
| Hot-worked (Stress-relieved): Hexagons 2 1/8 and under | 85,000 (585) | 55,000 (380) | 25 |
Bright annealed / annealed
Wooden case
Annealed / Stress-Relieved
The soft annealing should be performed at temperatures of 700 to 900°C (1,292 to 1,652°F), preferably at about 825°C (1,517°F).
Stress-relief annealing at about 550 to 650°C (1,022 to 1,202°F) should then occur, in order to prevent stress corrosion cracking.