Nimonic 90 Nickel-Based Superalloy

Date: 2026年4月24日 Categories: News Views: 56

Our company specializes in the production and supply of high-quality Nimonic 90, a premium nickel-chromium-cobalt precipitation-hardening superalloy designed for extreme high-temperature and high-stress industrial applications. All Nimonic 90 products are manufactured in strict compliance with international standards such as AMS 5829, DIN 2.4632, UNS N07090 and GOST requirements, ensuring exceptional performance and consistent quality in the most demanding operating environments.

Product Description

Nimonic 90 is a high-purity nickel-based superalloy renowned for its outstanding high-temperature strength, creep
resistance, and oxidation resistance. Developed as a precipitation-hardening alloy, it achieves its superior mechanical properties through precise heat treatment—including solution treatment and aging—which precipitates nano-scale γ' phase (Ni₃(Ti,Al)) to enhance strength and stability. The alloy is produced via vacuum induction melting (VIM) combined with electroslag remelting (ESR) for high cleanliness and uniform material composition, followed by precision processing to ensure accurate dimensions, smooth surfaces, and freedom from defects, suitable for various forming and machining needs.

Core Advantages

  • Exceptional High-Temperature Performance: Maintains excellent mechanical strength and structural integrity at continuous operating temperatures up to 850°C, with short-term resistance up to 950°C, making it ideal for extreme thermal environments.
  • Superior Creep & Fatigue Resistance: Exhibits outstanding creep rupture strength and fatigue resistance at elevated temperatures, minimizing deformation and ensuring long service life in high-stress applications such as turbine components.
  • Excellent Oxidation & Corrosion Resistance: Resists high-temperature oxidation and corrosion from various aggressive media, including chemical reagents and industrial exhaust, suitable for harsh industrial conditions.
  • Precise Manufacturing & Customization: Strict dimensional control meets the assembly requirements of high-precision equipment; we offer customizable specifications according to customer needs, supporting diverse application scenarios.

Key Technical Parameters

Nimonic 90 features consistent physical and mechanical properties that align with global standards, ensuring reliability in critical applications:
  • Chemical Composition (Typical): Ni (balance), Cr (18.0–21.0%), Co (15.0–21.0%), Ti (2.0–3.0%), Al (1.0–2.0%), C (≤0.13%), Fe (≤1.50%).
  • Physical Properties: Density 8.18 g/cm³, Melting point 1315–1345°C, Thermal conductivity 13.4 W/(m·K).
  • Mechanical Properties (Aged): Tensile strength ≥820 MPa, Yield strength ≥590 MPa, Elongation ≥8%, Hardness 280–320 HV.
  • Heat Treatment: Solution treatment at 1080–1120°C (2–4 hours, air-cooled); Aging treatment at 700–800°C (16–20 hours, air-cooled).

Application Fields

Nimonic 90 is widely used in high-end industrial fields where extreme temperature and stress resistance are critical, serving as key components for:
  • Aerospace Industry: Gas turbine blades, combustion chambers, turbine discs, and high-temperature fasteners for aircraft engines, leveraging its high-temperature strength and creep resistance.
  • Energy Industry: Gas turbine components, heat exchangers, and high-temperature bolts in thermal power plants and nuclear reactors, ensuring stable operation under harsh thermal conditions.
  • Petrochemical & Chemical Industry: High-temperature reactor components, valve stems, and drilling tools, resisting corrosion and thermal degradation in aggressive environments.
  • Automotive & Motorsport: Turbocharger rotors and high-performance engine valves, adapting to high-boost pressure and high-temperature operating conditions.

Quality Assurance

All Nimonic 90 products undergo rigorous quality inspection before leaving the factory, including chemical composition analysis, mechanical performance testing (tensile, hardness, creep), dimensional accuracy verification, and surface defect detection. We provide a complete set of quality certification documents, including material test reports and compliance certificates, to ensure each product meets international standards and customer application requirements, supporting seamless integration into industrial production systems.
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