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GH2903/GH903/N09903/Incoloy903 Top-Performing High Temperature Alloy Bar For Industrial Components

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City:changzhou
Province/State:jiangsu
Country/Region:china
Contact Person:MrChangfeng Ye
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GH2903/GH903/N09903/Incoloy903 Top-Performing High Temperature Alloy Bar For Industrial Components

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Brand Name :Senphus
Model Number :GH2903/GH903/N09903/Incoloy903
Certification :ISO9001
Place of Origin :China
MOQ :TBD
Payment Terms :T/T,D/P
Supply Ability :30 Tons per day
Delivery Time :7 days
Packaging Details :Packed with waterproof paper or weave bag, into pallets or wooden case. Special packaging requirements can also be accommodated.
Place of Orig :China
Type :High temperture Alloy Bar
Density :8.14 g/cm³
Melting range :1320–1380°C (2408–2516°F)
Thermal Conductivity :11.3 W/m·K (at 100°C)
Specific Heat Capacity :0.46 J/g·K (460 J/kg·K)
Modulus of Elasticity :180 GPa
Poisson’s Ratio :0.29
Coefficient of Thermal Expansion :12.5 × 10⁻⁶ /°C (20–1000°C range)
Electrical Resistivity :1.2 µΩ·m
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GH2903/GH903/N09903/Incoloy903 Top-Performing High Temperature Alloy Bar For Industrial Components


GH2903 (also known as GH903, N09903, or Incoloy 903) is a high-performance iron-nickel-cobalt alloy designed for applications requiring high strength, excellent fatigue resistance, and superior oxidation resistance at elevated temperatures. It features a well-balanced composition of nickel, iron, cobalt, titanium, and niobium, providing exceptional mechanical properties and stability under thermal cycling conditions.

Commonly used in aerospace, gas turbines, and high-stress mechanical components, GH2903 offers outstanding creep resistance and dimensional stability, making it ideal for jet engine components, turbine disks, and fasteners. The alloy is precipitation-hardened to enhance its strength and durability while maintaining good weldability and machinability.

GH2903 bars are available in various sizes and forms, meeting industry standards for high-temperature applications. Its ability to withstand extreme environments makes it a preferred choice for critical aerospace and power-generation applications, ensuring reliability and long service life in demanding operational conditions.


Chemical Composition Wt.% % Fe Nb P Co Ni Al Ti C Mn Si S Mo B Al
Min   2.7   14 36   1.35         5  0.005 0.7
Max Bal. 3.5 0.015 17 39 0.5 1.75 0.05 0.2 0.2 0.015 6.5 0.01 1.15


Physical Constants Density(g/cm³) 8.1
Melting Range(℃) 1350–1400°C (2462–2552°F)



GH2903/GH903/N09903/Incoloy903 Alloy Bar key features:

The GH2903 (GH903) / N09903 / Incoloy 903 Alloy Bar is a high-performance nickel-iron-cobalt-based superalloy known for its excellent mechanical and thermal properties. Here are its key features:

1. High Strength & Toughness

  • Maintains high strength and toughness at elevated temperatures.
  • Excellent fatigue and creep resistance.

2. Thermal Stability

  • Designed for high-temperature applications, especially in aerospace and industrial gas turbines.
  • Minimal thermal expansion, making it suitable for precision applications.

3. Corrosion & Oxidation Resistance

  • Good oxidation resistance in high-temperature environments.
  • Resistant to stress corrosion cracking.

4. Good Workability & Weldability

  • Can be forged, machined, and welded with proper techniques.
  • Suitable for precision manufacturing and complex shapes.


Incoloy 903 (GH2903, GH903, N09903) is a high-strength, nickel-iron-cobalt-based superalloy designed for applications requiring excellent thermal stability, high strength, and good corrosion resistance. It is often used in aerospace, power generation, and other high-performance industries.


Applications of Incoloy 903 Alloy Bar:

1.Aerospace Industry

  • Components in jet engines and gas turbines
  • Turbine discs and shafts
  • High-temperature structural parts

2.Power Generation

  • Steam and gas turbine components
  • Generator rotors and shafts
  • High-performance heat exchangers

3.Automotive & Motorsport

  • High-performance engine components
  • Turbocharger shafts and turbine wheels

4.Industrial Applications

  • High-temperature fasteners and springs
  • Chemical processing equipment
  • Heavy-duty mechanical parts requiring thermal stability

5.Marine & Defense

  • Naval propulsion systems
  • High-temperature resistant hardware

GH2903/GH903/N09903/Incoloy903 Top-Performing High Temperature Alloy Bar For Industrial ComponentsGH2903/GH903/N09903/Incoloy903 Top-Performing High Temperature Alloy Bar For Industrial ComponentsGH2903/GH903/N09903/Incoloy903 Top-Performing High Temperature Alloy Bar For Industrial Components

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