Introduction:
In the composition of Nimonic91, nickel element is the main
component, the addition of nickel element improves the corrosion
resistance and high temperature strength of the alloy. Chromium
helps to enhance the oxidation resistance of the alloy, while
cobalt can improve the hardness and red hardness of the alloy. The
titanium element helps to refine the microstructure of the alloy
and improve the strength and toughness of the alloy.
The high temperature performance of Nimonic91 is mainly due to its
special structure. At high temperatures, the crystal structure of
Nimonic91 becomes more stable, which improves its high temperature
strength and creep resistance. In addition, Nimonic91 also has good
fatigue resistance and corrosion resistance, which enables it to be
used in harsh environments for a long time.
Parameter:
Nickel (Ni) : 53-57%
Chromium (Cr) : 18-22%
Titanium (Ti) : 2-3%
Aluminum (Al) : 1-2%
Iron (Fe) : margin
- Physical and mechanical properties
Density: 8.33 g/cm³
Melting point: 1365-1370 ℃
Coefficient of thermal expansion: 12.8μm /m·°C (in the range of
20-100 ℃)
Thermal conductivity: 10.8W /m·K (at 100 ℃)
Tensile strength: 1070-1210 MPa (at room temperature)
Yield strength: 570-740 MPa (at room temperature)
| chemical composition ( % ) |
| Brand | C | Si | Mn | S | P | Cr | Ni | Fe | Cu | Ti | Al | Co | Other |
| Less Than |
| Nimonic90 | 0.13 | 0.8 | 0.4 | 0.015 | 0.02 | 18～21 | Rest | ≤1.5 | ≤0.2 | 2~3 | 1~2 | 15~21 | B≤0.02
Zr≤0.15 |
| Nimonic91 | 0.1 | 1 | 1 | 0.015 | 0.02 | 27～30 | Rest | ≤1 | ≤0.5 | 1.9～2.7 | 0.9～1.5 | 19~21 | Nb0.4～1.1
B0.002~0.01
Zr≤0.1 |
| The minimum mechanical properties of the alloy at room temperature |
| Brand | Heat Treatment | Tensile Strength(RmN/mm²) | Yield Strength(Rp0.2N/mm²) | Elongation(As%) | Brinell Hardness(HB) |
| Nimonic90 | Solid Solution | 820 | 590 | 8 | — |
| Nimonic91 | Solid Solution | 780 | 550 | 7 | — |
| Heat treatment of finished product |
| Alloy Wire supply condition | type | temperature | Time (Hr) | cooling |
| °C | °F |
| anneal | Age hardening | 750 | 1380 | 4 | Air |
| Elastic tempering | Age hardening | 650 | 1200 | 4 | Air |
| Elastic tempering | Age hardening | 600 | 1110 | 16 | Air |
Supply pattern:
1. Application form: Nimonic91 can supply bars, plates, pipes,
wires, forgings and other forms, and can be customized according to
customer needs.
2. Specification range: Nimonic91 has a wide range of
specifications, which can be customized according to user
requirements in various sizes and shapes.
3. Processing technology: Nimonic91 has good processing
performance, and can be processed by forging, heat treatment,
polishing and other processes.
Advantage:
- High temperature resistance: Nimonic 91 maintains high strength and
corrosion resistance in high temperature environments and can
withstand temperatures up to 1100 ° C.
- Oxidation resistance: It has excellent antioxidant properties and
can resist oxidation and corrosion at high temperatures.
- Creep resistance: Nimonic 91 has good creep resistance and can
withstand continuous stress at high temperatures for long periods
of time.
- Heat resistance fatigue: It has excellent heat resistance fatigue
properties, and can maintain high strength and fracture resistance
under high temperature recycling conditions.
- Abrasion resistance: Due to its high hardness, Nimonic 91 has
excellent performance in high-temperature friction and wear
environments.
Specific application areas:
- Aerospace: Nimonic91 is widely used in aero engine components,
turbine blades, combustion chambers and other key components to
improve aircraft performance and safety.
- Marine engine field: Nimonic91 has good corrosion resistance and is
suitable for Marine engine parts with severe seawater corrosion.
- In the field of nuclear energy: Nimonic91 plays an important role
in nuclear energy equipment and can withstand extreme conditions
such as high temperature, high pressure and creep.
- Petrochemical field: Nimonic91 is used in the manufacture of
petrochemical equipment, which can withstand high temperatures and
corrosive media.
contact us
email:victory@dlx-alloy.com
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