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General characteristics
The high strength, low weight ratio and outstanding corrosion resistance inherent to titanium and its alloys has led to a wide and diversified range of successful applications which demand high levels of reliable performance in surgery and medicine as well as in aerospace, automotive, chemical plant,power generation, oil and gas extraction, sports, and other major industries.In the majority of these and other engineering applications titanium has replaced heavier, less serviceable or less cost-effective materials.
Designing with titanium taking all factors into account has resulted in eliable,economic and more durable systems and components, which in many situations have substantially exceeded performance and service life expectations.
Titanium is available in different grades, unalloyed or alloyed.
Special characteristics
Unalloyed Commercially Pure (CP) Titanium is available in four different grades, 1, 2, 3 and 4, which are used based on the corrosion resistance, ductility and strength requirements of the specific application. Grade 1 has the highest formability,while Grade 4 has the highest strength and moderate formability.
CP Titanium users utilize its excellent corrosion resistance, formability and weldable characteristics in many critical applications.
Titanium Grade 2 is stronger than Grade 1and equally corrosion-resistant against most applications.Titanium Grade 2 has numerous applications in the medical industry.Biocompatibility of Titanium Grade 2 is excellent, especially when direct contact with tissue or bone is required.
Applications
Titanium Grade 2 is typically used for:
Powder Specification
The Arcam Titanium Grade 2 powder has a particle size between 45 and 100 microns. This limit on the minimum particle size ensures safe handling of the powder.
Please refer to the Arcam MSDS (Material Safety Data Sheet)for more information about the handling and safety of the Arcam Titanium Grade 2.
Chemical Specification
Arcam Titanium Titanium Grade 2,
Grade 2, Typical Required*
Carbon, C 0,005% <0,08%
Iron, Fe 0,05% <0,3%
Oxygen, O 0,19% <0,25%
Nitrogen, N 0,004% <0,03%
Hydrogen, H 0,0009% <0,015%
Titanium, Ti Balance Balance
*ASTM F67 (Unalloyed Titanium for Surgical Implant Applications)
Lattice skull implant
manufactured with
Arcam EBM.
Mechanical Properties
Arcam Titanium Titanium Grade 2,
Grade 2, Typical Required*
Yield Strength (Rp 0,2) 540 MPa 275 MPa
Ultimate Tensile Strength (Rm) 570 MPa 345 MPa
Elongation 21% >20%
Reduction of Area 55% >30%
*ASTM F67 (Unalloyed Titanium for Surgical Implant Applications)
The mechanical properties of materials produced in the EBM process are comparable
to wrought annealed materials and are better than cast materials
Post Processing
Heat Treatment
Hot Isostatic Pressing (HIP) is recommended for fatigue-loaded components.
The following HIP parameters are recommended:
Machining
Titanium Grade 2 parts manufactured in the EBM process feature good machinability and can be machined as stock parts. The following factors contribute to efficient machining of Titanium Grade 2 parts:
Welding
Titanium Grade 2 may be welded by a wide variety of conventional fusion and solid-state processes, although its chemical reactivity typically requires special measures and procedures.
