820Mpa GH4090 High Temperature Alloy Wire Nimonic 90 Spring Wire

Product Specification

Iron Nickel Cobalt Alloy Wire 4J29 Kovar Wire Precision Alloy Wire With Good Weldability

Product Introduction

Nimonic 90 Wire is a high performance nickel-based high temperature alloy wire with excellent high temperature strength and creep resistance. This alloy is mainly composed of elements such as nickel, chromium, and cobalt, and an appropriate amount of titanium and aluminum are added as strengthening elements. It achieves aging strengthening by forming intermetallic compounds, thereby significantly improving the overall performance of the alloy. Nimonic 90 Wire is capable of operating stably at temperatures up to 920°C (1688°F), maintaining good mechanical properties and creep resistance, while also offering excellent resistance to oxidation and corrosion. Its density is generally between 8.1 - 8.3 g/cm³, its melting point is approximately between 1300℃ - 1350℃, it has a low coefficient of thermal expansion, and can maintain dimensional stability in high temperature environments.

Parameter

Specific Applications

1. Aerospace: Widely used in the manufacture of key components of jet engines, such as turbine blades, turbine discs, combustion chamber components, nozzles, injection pipes, etc. These components need to work under extreme thermal and mechanical stresses. Nimonic 90 Wire can meet the requirements of high temperature strength and corrosion resistance.
2. Gas turbine field: Used to manufacture high temperature and high stress components such as blades, rotor discs, and burners of gas turbines. Its corrosion resistance and high temperature strength make it an ideal choice for key components of gas turbines.
3. Chemical and energy industries: Used to manufacture key equipment such as high temperature furnace tubes, reactors, catalyst carriers, valves, pipelines, etc., which can operate stably for a long time in harsh high temperature corrosion environments.

Advantages and Characteristics

• High temperature strength and creep resistance: Nimonic 90 Wire can maintain good mechanical properties and creep resistance at temperatures up to 920°C (1688°F), and can work stably for a long time in high temperature environments.
• Excellent oxidation resistance and corrosion resistance: Elements such as chromium and aluminum in the alloy can form a dense oxide film, which makes it have good oxidation resistance and corrosion resistance in high temperature atmospheres, and can be used for a long time in harsh environments without being corroded.
• High tensile strength and hardness: It has a high tensile strength of up to 950 MPa, can withstand temperatures up to 650°C, and has good toughness and machinability.

Processing performance:

1. Hot Working Temperature Range: Nimonic 90 Wire can be hot worked in the temperature range of 1050-1200°C (1922-2192°F). In this temperature range, the alloy exhibits good hot working properties and is able to effectively avoid cracking and deformation during processing.
2. Dynamic Recrystallization (DRX): At 1130°C, Nimonic 90 undergoes dynamic recrystallization, which is the key mechanism for maintaining good ductility and toughness at high temperatures. The peak power dissipation efficiency of dynamic recrystallization is about 38% and occurs at a strain rate of 0.1 s⁻¹.

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Q&A

What is Nimonic 90 Wire made of?
Nimonic 90 Wire is an age-hardened nickel-based deformable high-temperature alloy with a high cobalt content and a variety of strengthening elements, suitable for applications in high-temperature environments.

What is the corrosion resistance of Nimonic 90 Wire?
Nimonic 90 Wire performs well in high-temperature oxidizing environments. Due to the presence of chromium, the chromium oxide protective film formed on the surface of the alloy can resist oxidation at high temperatures. In gas environments containing corrosive elements such as sulfur, the alloy also has a certain degree of corrosion resistance.

What are the main application areas of Nimonic 90 Wire?
Nimonic 90 Wire is widely used in aerospace, gas turbines, petrochemicals and other fields, such as turbine blades, turbine discs, high-temperature fasteners, clamps, seals and elastic elements.

What is the processing performance of Nimonic 90 Wire?
Nimonic 90 Wire has good processing performance and can be processed by conventional mechanical processing methods such as turning, milling, drilling, etc.