Inconel X-750 Nuts
2.4669, N07750
Inconel X-750 Nuts are fasteners manufactured from alloy containing nickel and cobalt as base element containing chromium with additions of titanium and aluminium. Inconel X-750 Fasteners have highly resistant to chemical corrosion and oxidation and has high stress-rupture strength and low creep rates under high stresses at temperatures up to 1500°F (816°C). TorqBolt is an eminent Inconel X-750 fastener supplier in India.
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Alloy x750 Hex Nuts Properties
Inconel X-750 Chemical Requirements
| Composition Limits, % | Element | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UNS | C | Mn | Si | P | S | Cr | Co | Mo | Nb + Ta | Ti | Al | Zr | B | Fe | Cu | Ni | Ta | Nb | W | V |
| UNS N07750 (Formerly Grade 688) | 0.08 max | 1.00 max | 0.50 max | ... | 0.01 max | 14.00-17.00 | 1.00 maxA | ... | 0.70-1.20 | 2.25-2.75 | 0.40-1.00 | ... | ... | 5.00-9.00 | 0.50 max | 70.00 min | ... | ... | ... | ... |
Inconel X-750 Mechanical Requirements
Tensile and Hardness Requirements
| UNS | Heat Treatment | Tensile Strength, min, psi (MPa) |
Yield Strength (0.2 % offset), min, psi (MPa) |
Elongation in 2 in. (50 mm) or 4D, min, % |
Reduction of Area, min, % |
Brinell or (Rockwell C) Hardness |
|---|---|---|---|---|---|---|
| ASTM B637 UNS N07750 Type 1 | solution at 2100°F (1149°C) + stabilize + precipitation harden | 140 000 (965) | 90 000 (620) | 8 | ... | 262 min (26 Rc min) |
| ASTM B637 UNS N07750 Type 2C | solution at 1800°F (982°C) + precipitation harden | 170 000 (1170) | 115 000 (790) | 18 | 18 | 302 to 363 (32-40 Rc) |
| ASTM B637 UNS N07750 Type 2D | solution at 1800°F (982°C) + precipitation harden | 170 000 (1170) | 115 000 (790) | 15 (10)E | 15 (12)E | 302 to 363 (32-40 Rc) |
| ASTM B637 UNS N07750 Type 3 | solution anneal at 2000°F (1093°C) + precipitation harden | 160 000 (1103), min 185 000 (1276), max | 100 000 (689), min 130 000 (896), max | 20 | 20 | 267 to 363, Bm (27-40, Rc) |
Stress Rupture Requirements
| UNS | Heat Treatment | Test Temperature, °F (°C) |
Stress, psi (MPa)B | Minimum Hours | Elongation in 2 in. or 50 mm (or 4D), min, % |
|---|---|---|---|---|---|
| ASTM B637 UNS N07750 Type 1 | solution at 2100°F (1149°C) + stabilize + precipitation harden | 1350 (732) | 45 000 (310) | 100 | 5 (3 if hours exceed 136) |