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Description
Alloy X-750 alloy has good corrosion resistance and oxidation resistance below 980 ℃, high strength below 800 ℃, good relaxation resistance at 540 ℃, good formability and welding performance, and excellent mechanical properties in low temperature environment. X-750 alloy is mainly used to make springs, bolts, turbine blades, grinding wheels and high-pressure vessels working at high temperature.
Product Features
X750 is a Nickel-Chromium alloy made precipitation hardenable by additions of Al and Ti, having creep-rupture strength at high temperatures to about 700°C (1290°F). It is widely used for high temperature conditions but is not as strong as Nimonic 90.
Dimensional Data
Similar Grade of Special Steel Nickel Alloy High Quality Inconel X-750
| GB/T | UNS | JIS | TRADEMARK | W.NR |
| GH4145 | N07750 | NCF750B | ALLOY X-750 | 2.4669 |
Chemical Composition Of Inconel X-750
| YASCO | % | Ni | Cr | Fe | Nb | Co | C | Mn | Si | S | Cu | Al | Ti |
| ALLOY 750 | MIN | 70 | 14 | 5 | 0.7 | _ | _ | _ | _ | _ | _ | 0.4 | 2.25 |
| MAX | _ | 17 | 9 | 1.2 | 1 | 0.08 | 1.0 | 0.5 | 0.01 | 0.5 | 1.0 | 2.75 |
Heat Treatment of Finished Parts
| Condition as supplied by Alloy Wire | Type | Temperature | Time (Hr) | Cooling | |
| °C | °F | ||||
| Spring Temper | Age Harden | 650 | 1200 | 4 | Air |
| Spring Temper (3 Part) | Anneal | 1150 | 2100 | 20 | Air |
| Stabalize | 843 | 1550 | 24 | Air | |
| Age Harden | 704 | 1300 | 20 | Air | |
| No. 1 Temper | Age Harden | 730 | 1350 | 16 | Air |
Normal Temperature Mechanical Properties
| Melting Range | Densiity | Alloy and Condition | Tensile Strength | Yield Strength | Elongation | Hardness |
| Rm N/ mm³ | RPO. 2N/ mm³ | A5% | HB | |||
| 1395-1425℃ | 8.25G/Cm³ | Solution Treatment | ≥1170 | ≥790 | ≥10% | 302-363 |
