NIMONIC® Alloy 81 is a high-temperature alloy with excellent high-temperature strength and corrosion resistance. It is composed of nickel, chromium, iron and other elements, which will be introduced in detail below.
1. Definition
NIMONIC® Alloy 81 is a high-temperature alloy with excellent high-temperature strength and corrosion resistance, composed of nickel, chromium, iron and other elements.
2. Chemical composition
The chemical composition of NIMONIC® Alloy 81 is as follows:
Nickel (Ni): ≥70%
Chromium (Cr): 18-21%
Iron (Fe): ≤5%
Silicon (Si): ≤1%
Manganese (Mn): ≤1%
Carbon (C): 0.1-0.15%
Sulfur (S): ≤0.015%
Phosphorus (P): ≤0.02%
3. Production standards
The production standards of NIMONIC® alloy 81 include AMS 5540, BS HR1, BS HR201, DIN 17742, AFNOR NC 20TA, etc.
4. Corrosion resistance
NIMONIC® Alloy 81 has excellent corrosion resistance and performs well in a variety of corrosive media, especially under high temperature and high stress conditions. It can resist the erosion of various corrosive media such as oxidation, sulfidation, and chlorination, and has excellent resistance to stress corrosion cracking and intergranular corrosion.
5. High temperature resistance
NIMONIC® Alloy 81 has excellent high-temperature strength and corrosion resistance, and can work at high temperatures for a long time, with the maximum operating temperature reaching 815°C.
6. Typical application scope
NIMONIC® Alloy 81 is widely used in aviation, aerospace, energy, chemical, petrochemical and other fields. It is widely used in aircraft engines, gas turbines, turbochargers, combustion chambers, high-temperature components, refinery units, steam turbines, nuclear reactors and other equipment.
7. Thermal processing
NIMONIC® Alloy 81 is easy to process at high temperatures and can be hot-processed by forging, hot rolling, hot extrusion, etc. to prepare parts of different shapes.
8. Cold processing
NIMONIC® Alloy 81 performs well in cold working and can be cold worked by cold drawing, cold rolling, etc. to prepare parts of different shapes.
9. Heat treatment
NIMONIC® Alloy 81 can be heat treated through annealing, solution, aging, etc. to improve the mechanical properties and corrosion resistance of the material.
10. Machining
NIMONIC® Alloy 81 can be machined by drilling, milling, turning, cutting, etc. However, care needs to be taken to avoid overheating and overcutting to avoid damaging the material’s properties.
11. Welding
NIMONIC® Alloy 81 can be welded by TIG, MIG, SMAW, etc. It is necessary to pay attention to the selection of appropriate welding materials and welding processes to ensure the quality and performance of the welded joints.
12. Recommended welding materials
It is recommended to use ERNiCr-3 welding wire for welding.
13. Material specific gravity
NIMONIC® Alloy 81 has a specific gravity of 8.19 g/cm³.
14. Mechanical properties
The mechanical properties of NIMONIC® Alloy 81 are as follows:
Tensile strength: ≥930 MPa
Yield strength: ≥420 MPa
Elongation: ≥25%
Hardness: ≤HB321
15. Available product range
The product range available for NIMONIC® Alloy 81 includes pipes, plates, rods, flanges, fittings, etc. During the production and sales process, attention needs to be paid to issues such as quality control, delivery time management, and customer service to meet customer needs.
Tianjin Anton Metal Manufacture Co., Ltd. is a company specializing in the production of various nickel-based alloys, Hastelloy alloys and high-temperature alloy materials. The company was established in 2001 with a registered capital of 16.8 million, specializing in the production and sales of alloy materials. Anton Metal’s products are widely used in aerospace, chemical industry, electric power, automobile, nuclear energy and other fields, and can also provide customized alloy material solutions according to customer needs. If you need to know the price consultation of alloy materials or provide customized alloy material solutions, please feel free to contact the sales staff.
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ANTON METAL｜ Your specialty metals manufacturer
Email: dominic@antonmetal.com
Phone: +8613132148618(wechat/whatsapp)
Post time: Sep-09-2023
