PMI STEEL Inconel 718 Bar - High-Temperature Nickel Alloy 718 for Aerospace, Oil & Gas

PMI STEEL Inconel 718 Bar is a nickel alloy providing resistance to high temperatures and corrosion. It is used in aerospace, oil and gas, nuclear energy, and marine engineering industries. With a high tensile strength of ≥ 1200 MPa, it is for components that must endure extreme conditions.

The alloy is weldable, heat treatable, and provides exceptional durability. It is manufactured by PMI STEEL in China.

Product Description

Material Properties

1. High-Temperature Resistance and Strength: Inconel 718 maintains its strength at temperatures up to 700°C, exhibiting excellent creep and fatigue resistance, allowing it to remain stable under prolonged temperature fluctuations.
   
2. Corrosion Resistance: This material shows exceptional resistance to various corrosive media, such as oxidizing acids and chlorides, providing excellent durability in harsh environments.
   
3. Weldability: Inconel 718 has superior weldability, allowing for effective connections with other materials, making it suitable for the manufacture of complex structural components.
   
4. Heat Treatment Performance: The alloy can achieve the desired mechanical properties through heat treatment, and further optimization of the processing can enhance its characteristics.

Main Chemical Composition

The typical chemical composition of PMI Inconel 718 is as follows:

• Nickel (Ni): 50.0% - 55.0%
  
• Chromium (Cr): 17.0% - 21.0%
  
• Iron (Fe): Balance
  
• Molybdenum (Mo): 2.8% - 3.3%
  
• Niobium (Nb): 0.5% - 2.5%
  
• Titanium (Ti): 0.65% - 1.15%

Mechanical Properties

Under standard heat treatment conditions, the mechanical properties of PMI Inconel 718 are:

• Tensile Strength: ≥ 1200 MPa
  
• Yield Strength: ≥ 1000 MPa
  
• Elongation: ≥ 12%
  
• Strain Rate: Up to 0.20%/1000h at high temperatures (at 650°C)

Physical Properties

• Density: Approximately 8.19 g/cm³
  
• Melting Point: 1260 - 1320°C
  
• Thermal Conductivity: 11.4 W/m·K
  
• Coefficient of Thermal Expansion: 13.0 x 10⁻⁶/K (from room temperature to 100°C)
  
• Electrical Resistivity: Approximately 6.9 μΩ·m