Nimonic 75
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Specification, Chemical & Mechanical Performance
Nimonic 75 is an 80/20 nickel-chromium alloy with controlled additions of titanium and carbon. First introduced in the 1940s for turbine blades in the prototype Whittle jet engines, it is now mostly used forsheet applications calling for oxidation and scaling resistance coupled with medium strength at high operating temperatures. It is still used in gas turbine engineering and also for industrial thermal processing,furnace components and heat-treatment equipment.
Nimonic 75 Trade Name: W.NR 2.4951; W.NR 2.4630; UNS N060750; Nimonic Alloy 75;
Nimonic 75 Chemical composition:
| Alloy | % | Ni | Cr | Fe | Mn | Si | Cu | Ti | C |
| Nimonic 75 | Min. | Bal | 18.9 | 0.2 | 0.08 | ||||
| Max. | 21.0 | 5.0 | 1.0 | 1.0 | 0.5 | 0.6 | 0.15 |
Nimonic 75 Physical properties:
| Density | 8.37 g/cm3 |
| Melting point | 1340℃-1380 ℃ |
Nimonic 75 alloy mechanical properties in the room temperature:
| Alloy Status | Tensile strength Rm N/mm² |
Yield strength
RP0.2 N/mm² |
Elongation A5 % |
| Solution Treatment | 920 | 550 | 25 |
Nimonic 75 Specificaiton:
| Rod | Wire | Froging | Pipe | Sheet | Strip | Fittings |
| BSHR 5, BS HR504, DIN 17752, AECMA PrEN2306, AECMA PrEN2307, AECMA PrEN2402, ISO 9723-25 | BS HR403,
DIN 17751, AECMArEN2294, ISO 6207
|
BS HR 203, DIN17750,ISO 6208
AECMA PrEN2293, AECMA PrEN2302, AECMA PrEN2411,
|
DIN 17742,
AECMA PrEN230 |
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Nimonic 75 Applications Fileds:
Alloy 75 is most commonly used for sheet metal fabrications which require oxidation and scaling resistanc together with medium strength at high operating temperature. Alloy 75 is also used in gas turbine engines, for components of industria furnaces, for heat treating equipment and fixtures, and in nuclear engineering.
This alloy might be used in any environment that requires resistance to heat and corrosion but where the mechanical properties of the metal must be retained.
