ASTM B863-Titanium and Titanium Alloy Wire

Standard Specification for Titanium and Titanium Alloy Wire

ASTM B863 covers titanium and titanium alloy wire for industrial, medical, and aerospace use. The wire may be supplied in straight lengths, spools, or coils, and is used for:

Welding filler metal

Springs

Mesh and filters

Fasteners

Medical devices

Additive manufacturing (as feedstock wire)

Applicable Grades (UNS Designations)

Additional alloys may be available on agreement.

Dimensions and Tolerances

Wire diameter range:

Typically 0.1 mm-6.35 mm (0.004”-0.25”)

Tolerances:

As per Table 1 in the standard, or agreed with purchaser.

Typical:

±0.013 mm (±0.0005″) for small diameter

±0.05 mm (±0.002″) for larger diameter

Ovality ≤ 50% of total tolerance

Wire form:

Straightened wire (cut to length)

Coil wire or spooled wire (plastic, steel, or fiber spools)

Manufacturing & Surface Finish

Wire may be drawn, rolled, or ground.

Surface finish:

Pickled, bright-drawn, or abrasively cleaned.

Free from cracks, inclusions, and contamination.

Surface oxidation is removed unless otherwise specified.

Mechanical Properties (Typical Minimums)

Mechanical properties depend on:

Wire diameter

Heat treatment (annealed or cold-worked)

Testing Requirements

Chemical analysis: Must conform to the grade-specific standard (e.g., ASTM B348 for Gr 5)

Tensile testing: Representative samples

Bend test (optional): Wire must withstand bending without cracking

Surface inspection: Free from harmful defects

Grain size: For some medical or high-spec applications

Marking and Certification

Each wire coil/spool must be marked with:

ASTM B863

Grade

Heat number

Size and length/weight

Manufacturer ID

Mill Test Report (MTR) includes:

Chemical composition

Mechanical properties

Heat treatment (if applicable)

Surface condition

Typical Applications

Aerospace: Lock wire, spring wire, fasteners

Welding: TIG welding filler wire

Medical: Surgical wire, orthodontics, implant devices

Chemical          : Mesh, screen filters, corrosion-resistant fasteners

Additive Manufacturing: Wire feedstock for wire-based 3D printing

Related Standards

ASTM F67: CP Ti for surgical implants (wire, bar)      

ASTM F136: Ti-6Al-4V ELI for surgical implants 

AWS A5.16: Titanium welding wire     

ASTM B348: Bar and billet – source for wire      

ISO 24034: Equivalent ISO standard for Ti wire