ASTM B265 — Titanium Sheet, Strip, and Plate Standard
Complete guide to ASTM B265 specification for titanium and titanium alloy sheet, strip, and plate. Grades covered, chemical composition, mechanical properties, and certification requirements.
TLDR
ASTM B265 is the primary standard governing titanium and titanium alloy sheet, strip, and plate products. It covers dimensions, chemical composition, mechanical properties, and testing requirements for all commercially available titanium grades.
Quick Answer
What is ASTM B265?
ASTM B265 is the international specification for titanium and titanium alloy sheet, strip, and plate. It defines the chemical composition limits, mechanical property requirements, dimensional tolerances, and testing procedures for all common titanium grades in flat-rolled forms. Compliance with ASTM B265 is typically required for aerospace, medical, and industrial applications where material traceability and performance verification are mandatory.
Scope
ASTM B265 covers titanium and titanium alloy sheet, strip, and plate in the following conditions: annealed, cold-worked, and heat-treated. The standard defines thickness ranges from 0.4 mm to 100 mm and covers multiple grades of commercially pure titanium and titanium alloys, including Grade 1 through Grade 38.
Key parameters covered:
- Thickness: 0.4 mm (0.016 in) to 100 mm (4.000 in)
- Width: Up to 3000 mm, depending on thickness
- Length: As specified by the purchaser
- Forms: Sheet (thin), strip (coiled), plate (thick)
Key Requirements
Chemical Composition
The standard specifies maximum allowable limits for interstitial elements (Fe, O, C, N, H) and alloying elements (Al, V, Mo, Zr, etc.) for each grade. Certification through mill test reports (MTR) is required to verify composition.
Mechanical Properties
| Property | Requirement |
|---|---|
| Tensile Strength | Grade-dependent (345–1170 MPa) |
| Yield Strength (0.2% offset) | Grade-dependent (275–1100 MPa) |
| Elongation | Grade-dependent (10–24% in 2 in) |
| Bend Test | Required for sheet and strip under 1.8 mm |
Testing Requirements
- Tensile testing — Per ASTM E8/E8M at room temperature
- Bend testing — For sheet and strip under 1.8 mm thickness
- Ultrasonic inspection — Optional, per ASTM E2375 for aerospace applications
- Chemical analysis — Per ASTM E120 or equivalent methods
- Dimensional inspection — Thickness, width, length, flatness, and edge condition
Surface Quality
- No cracks, seams, or laminations
- Surface defects removable within dimensional tolerance
- Pickled, ground, or blast-cleaned surface permissible depending on finish specification
Typical Applications
- Aerospace: Fuselage skins, bulkheads, wing ribs, firewalls, engine nacelles
- Medical: Implant plate blanks, surgical instrument stock, dental implant bar stock
- Chemical Processing: Reaction vessel liners, heat exchanger plates, column trays
- Marine: Seawater piping, propeller blade stock, hull sheathing
- Industrial: Heat exchanger tube sheets, pressure vessel plate, electrode stock
- Architectural: Titanium-clad roofing panels, facade sheets, structural cladding
Related Materials
- Grade 2 Titanium — Commercially pure, most commonly specified CP grade for sheet applications
- Grade 5 Titanium (Ti-6Al-4V) — Highest strength alpha-beta alloy in sheet/plate form
- Grade 23 Titanium (Ti-6Al-4V ELI) — Extra-low interstitial version for medical implant plate
Related Services
- Titanium CNC Machining — Precision machining of sheet and plate components to print
- Titanium Milling — Large-format plate milling for structural aerospace and industrial parts
- Titanium Turning — Turning of bar and billet sourced to ASTM B265-compliant material
- Wire EDM — Precision cutting of plate blanks for medical and aerospace applications