Titanium Grade 2 round bars are widely used across industries that require strong, lightweight, and corrosion resistant materials. As a commercially pure titanium grade, Titanium Gr 2 offers an excellent balance of mechanical strength, ductility, and long term corrosion resistance.
Because of these characteristics, Grade 2 round bars are often selected for chemical processing, marine, and industrial engineering applications where reliability and service life are critical.
What Is Titanium Grade 2?
Titanium Grade 2 is classified as commercially pure titanium with higher strength than Grade 1 while maintaining excellent formability and corrosion resistance. It is the most commonly used grade among commercially pure titanium materials.
The alloy is identified under UNS R50400 and is typically supplied in annealed condition for round bar applications.
Standards and Specifications
Titanium Grade 2 round bars are produced in accordance with internationally recognized standards that control chemical composition, mechanical properties, and dimensional tolerances.
Common specifications include:
ASTM B348 – Titanium and titanium alloy bars and billets
ASME SB-348 – Pressure equipment applications
UNS R50400 – Material designation
These standards ensure consistent quality and predictable performance.
Chemical Composition
Based on published specifications, Titanium Grade 2 typically contains:
Titanium: balance
Oxygen: maximum approximately 0.25 percent
Iron: maximum approximately 0.30 percent
Carbon: maximum approximately 0.08 percent
Nitrogen and hydrogen in controlled low limits
This controlled chemistry contributes to excellent corrosion resistance and stable mechanical properties.
Mechanical Properties
Titanium Gr 2 round bars provide a reliable combination of strength and ductility.
Typical characteristics include:
Moderate tensile strength
Good yield strength
Excellent elongation
High impact toughness
These properties allow the bars to be machined and fabricated without difficulty.
Corrosion Resistance
Titanium Grade 2 exhibits outstanding corrosion resistance due to the formation of a stable titanium oxide film on the surface.
It performs well in:
Seawater and marine atmospheres
Chloride rich environments
Oxidizing acids
Wet chlorine and chlorine dioxide
Many industrial chemical solutions
This makes it a strong alternative to stainless steel in corrosive services.
Machinability and Fabrication
Titanium Grade 2 round bars can be machined using appropriate tooling and cutting parameters.
Key considerations include:
Lower cutting speeds compared to carbon steel
Sharp tools and proper cooling
Good weldability with inert gas shielding
With correct practices, fabrication is straightforward.
Size Range and Supply Condition
Titanium Grade 2 round bars are commonly supplied in:
Annealed condition
Hot rolled or cold drawn form
Typical size range:
From small diameters up to large forged bars depending on production capability
Cut lengths are available as per customer requirement.
Applications of Titanium Grade 2 Round Bars
Titanium Gr 2 round bars are widely used in:
Chemical processing equipment
Heat exchangers and condensers
Marine hardware
Desalination plants
Power generation components
Aerospace ground equipment
Medical and industrial tooling
Advantages of Titanium Grade 2 Round Bars
Excellent corrosion resistance
High strength to weight ratio
Long service life
Good machinability and weldability
Low maintenance requirements
Conclusion
Titanium Grade 2 round bars offer dependable performance in corrosive and demanding environments. Their combination of durability, light weight, and corrosion resistance makes them a preferred choice for long term industrial applications.