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When your project demands a material that refuses to corrode, bend to pressure, or add unnecessary weight, standard steel and aluminum fall short. Engineers, makers, and fabricators working on aerospace components, marine hardware, medical fixtures, and high-performance DIY builds need a sheet metal that performs at the extremes — and that's exactly where Grade 5 titanium sheet plate delivers.
This listing includes one piece of Grade 5 (GR5, Ti-6Al-4V) titanium flat sheet plate, measuring 150 × 150 mm (approximately 5.91 × 5.91 inches) in your choice of 4 mm or 5 mm thickness. The plate features a mill-finish surface with clean, straight-cut edges. At 4 mm thick, the piece weighs approximately 406 g (0.90 lb); at 5 mm, approximately 508 g (1.12 lb).
Typical use cases include custom bracket fabrication for titanium bicycle components, heat shield blanks for motorsport and exhaust applications, corrosion-resistant backing plates for marine hardware installations, and raw stock for CNC machining titanium alloy parts in small-batch production runs.
Grade 5 (GR5) is the most widely used titanium alloy, combining 6% aluminum and 4% vanadium for a tensile strength of approximately 950 MPa — roughly twice that of commercially pure titanium and comparable to many alloy steels at a fraction of the weight.
At a density of ~4.43 g/cm³, titanium is about 43% lighter than steel while maintaining structural integrity under high stress — making it the go-to choice for weight-critical aerospace, motorsport, and medical applications.
Grade 5 titanium forms a stable, self-healing oxide layer that resists saltwater, acids, and most industrial chemicals — ideal for marine environments, chemical processing fixtures, and outdoor structural components.
Retains mechanical properties up to approximately 300–400 °C (572–752 °F), making it suitable for exhaust heat shields, engine bay brackets, and other thermal management applications where aluminum would soften.
The 150 × 150 mm format is a practical starting size for CNC routing, waterjet profiling, and TIG welding projects. Mill-finish surface provides a consistent baseline for further finishing, anodizing, or coating.
Available in 4 mm and 5 mm thicknesses to match your design tolerances. Select the thickness that suits your load requirements and machining allowances — both cut from the same GR5 alloy stock.
| Material | Titanium Alloy Grade 5 (GR5 / Ti-6Al-4V) |
|---|---|
| Dimensions | 150 × 150 mm (5.91 × 5.91 in) |
| Thickness | See variant options (4 mm or 5 mm) |
| Quantity | 1 piece per order |
| Surface Finish | Mill finish (as-rolled) |
| Tensile Strength | ≥ 895 MPa (130 ksi) |
| Yield Strength | ≥ 828 MPa (120 ksi) |
| Density | ~4.43 g/cm³ |
| Max Service Temp. | ~300–400 °C (572–752 °F) |
| Approximate Weight (4mm) | ~406 g (0.90 lb) |
| Approximate Weight (5mm) | ~508 g (1.12 lb) |
| Edge Condition | Straight cut |
| Alloy Standard | ASTM B265 / AMS 4928 equivalent |
Choose 4 mm if your application requires lighter weight or if you have tighter machining allowances — it's well-suited for brackets, heat shields, and decorative structural parts. Choose 5 mm when you need additional rigidity, greater material removal during CNC machining, or higher load-bearing capacity. Both thicknesses are cut from the same GR5 alloy stock and offer identical material properties.
Grade 5 (Ti-6Al-4V) has a tensile strength of approximately 950 MPa, which is comparable to many medium-carbon and alloy steels. However, titanium achieves this at roughly 43% less weight than steel, giving it a significantly superior strength-to-weight ratio. It is not as hard as hardened tool steel, but for structural and load-bearing applications it outperforms most aluminum alloys.
No. Grade 5 titanium forms a passive titanium dioxide (TiO₂) oxide layer on its surface that is self-healing and highly resistant to saltwater, chlorine, dilute acids, and most atmospheric conditions. It is widely used in marine hardware, offshore equipment, and coastal architectural applications for this reason. No additional coating or plating is required for corrosion protection in most environments.
Titanium can be cut with fiber laser, waterjet, or carbide-tipped tooling. It is machinable on CNC mills and lathes using sharp carbide inserts, low cutting speeds, and adequate coolant to prevent work hardening. TIG welding is the recommended joining method — use pure argon shielding gas and back-purge the weld zone to prevent oxidation. Avoid using standard HSS tooling without proper speeds and feeds, as titanium work-hardens quickly.
Yes. Grade 5 titanium can be anodized to produce a range of interference colors (gold, blue, purple, green) without dyes — the color is produced by varying the oxide layer thickness through voltage control. The mill-finish surface on this plate provides a consistent starting point for anodizing, bead blasting, or polishing. No pre-treatment coating is applied, so the surface is ready for your finishing process.
This 150 × 150 mm GR5 titanium plate is well-suited for: custom aerospace bracket fabrication, exhaust heat shields and motorsport components, marine hardware backing plates, medical device prototyping, knife and blade blanks, architectural accent pieces, and small-batch CNC machining projects. Its compact format makes it ideal for prototyping and one-off parts where a full sheet would be wasteful.
This plate is produced from Grade 5 Ti-6Al-4V alloy stock equivalent to ASTM B265 (titanium strip, sheet, and plate) and AMS 4928 standards. If you require a certified material test report (MTR) or mill certificate for your application, please contact us before ordering to confirm availability.
