Titanium Grade 4

Titanium Grade 4 is one of the strongest commercially pure titanium grades, characterized by exceptionally high mechanical strength and good corrosion resistance. Compared to other pure titanium grades, Grade 4 offers higher tensile strength and fatigue resistance, making it the preferred material for applications involving high mechanical loads. Despite its increased strength, it remains relatively lightweight, making it ideal for demanding applications.

Grade 4 titanium is especially well-suited for industrial applications, particularly in environments that require high mechanical performance and a certain level of corrosion resistance. It is resistant to a wide range of chemicals, which makes it a preferred choice in the petrochemical industry, mechanical engineering, and aerospace.

Titanium Grade 4 also offers excellent machinability, although it requires slightly more effort during processing due to its higher strength. Nonetheless, the material remains versatile, with excellent weldability and formability, making it highly efficient for a wide range of applications.

Applications:

• Pressure vessels and heat exchangers for chemical plants
• High-load components in the automotive industry
• Landing gear components for aerospace applications
• Construction components for mechanical engineering
• Medical and surgical tools, dental implants

Physical Properties:

• Density: 4,51 g/cm³
• Specific Heat: 0,52 J/(g·K)
• Thermal Conductivity: 17,2 W/(m·K)
• Modulus of Elasticity: 105 (KN/mm²)
• Electrical Resistivity: 0,47 Ω·mm²/m
• Thermal Expansion: 8,9·10⁻⁶/K
• Beta-Transus Temperature: 949 °C

Mechanical Properties:

• Tensile Strength: 550 MPa min.
• Yield Strength: 483-655 MPa
• Elongation: 15% min.

Heat Treatments:

• Annealing (Soft Annealing): 600 – 700 °C
• Stress Relief Annealing: 450 – 600 °C

Welding:

MIG (Metal Inert Gas)
TIG (Tungsten Inert Gas)
Argon shielding gas welding
Plasma welding
Laser welding
Electron beam welding