Titanium Grade 6 Plates | Ti‑5Al‑2.5Sn High-Temperature Plates for Demanding Seawater & Chemical Service
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A coastal power plant had already upgraded condenser tube sheets to commercially pure titanium to combat seawater corrosion, but the high‑temperature exhaust ducting on a nearby chemical waste‑heat boiler still relied on heavy 310 stainless plates that warped and cracked after repeated thermal cycles. When the engineering team re‑designed the hottest duct sections and support plates in Titanium Grade 6 Plates (Ti‑5Al‑2.5Sn, UNS R54520), finite‑element checks showed weight reductions of more than 40% versus stainless alongside creep resistance up to roughly 425 °C and oxidation resistance reported up to about 480 °C, and inspection data over successive outages confirmed dimensional stability and clean surfaces where the old steel plates had buckled and scaled.
Titanium Grade 6 is the alpha‑titanium alloy Ti‑5Al‑2.5Sn, containing around 5% aluminium and 2–3% tin with the balance titanium, designed to offer medium strength, very good weldability and fabricability, and excellent microstructural stability at elevated temperatures. The alloy carries UNS designation R54520 with EN or DIN numbers such as 3.7115, and product forms including strip, sheet and plate are commonly produced to specifications such as ASTM B265 Grade 6 and AMS 4910 or 4918 for aerospace and industrial service. Typical data show tensile strengths reported between roughly 820–900 MPa, yield strengths near 750–827 MPa and elongation close to 15–18%, providing a useful combination of strength and ductility for plate components in hot, corrosive environments.
For procurement heads, corrosion and mechanical engineers, fabricators, OEMs and hardware or industrial supply stores serving chemical, oil & gas, marine, pharma and power‑generation projects, Titanium Grade 6 plates occupy a valuable middle ground between commercially pure titanium (Grades 2–4) and high‑strength Ti‑6Al‑4V Grade 5. Grade 6’s alpha microstructure and composition give it excellent thermal stability and oxidation resistance, with sources indicating service temperatures up to about 480 °C, creep resistance to around 800 °F (≈425 °C) and good corrosion resistance in seawater and many chemical environments, especially where both elevated temperature and mechanical loads must be carried.
Aurico Alloys LLP can support these requirements as an affordable, authentic Titanium Grade 6 Plates supplier, manufacturer and stockist in India with export capability abroad, supplying plate aligned to UNS R54520 / 3.7115 ranges and ASTM B265 Grade 6 mechanical requirements together with EN 10204 test certificates for global chemical, oil & gas, marine, pharma and power clients.
High-quality Titanium Grade 6 Plates ready for industrial use.
Specification Overview
| Supplier & Role | Aurico Alloys LLP – Titanium Grade 6 Plates supplier, stockist, exporter in India to abroad |
|---|---|
| Alloy Description | Alpha titanium alloy Ti‑5Al‑2.5Sn (Grade 6) with medium strength, high‑temperature stability and very good weldability |
| UNS / Werkstoff / EN | UNS R54520, EN/DIN 3.7115 and related designations for wrought products |
| Main Plate Standards | ASTM B265 / ASME SB‑265 Grade 6 for strip, sheet and plate; associated specifications such as AMS 4910 and AMS 4918 for aerospace products |
| Thickness Range | 4.75 mm – 150 mm |
| Density | ≈4.55 g/cm³, slightly higher than CP grades but still far below steel |
| Service Temperature | High service temperature reported around 480 °C with creep resistance up to about 800 °F (≈425 °C) and oxidation resistance cited up to about 1200 °F (≈650 °C) |
| Corrosion Focus | Excellent corrosion resistance in many chemical and marine environments, including seawater, due to stable oxide film and alpha‑phase stability |
UNS & Equivalent Grades
| Property | Value |
|---|---|
| UNS number | R54520 |
Identifiers and physical constants for Titanium Grade 6. A dash means no such designation is published for this grade.
How Titanium Grade 6 Compares
| Alloy | Designation | Standards / Numbers | Key Characteristics |
|---|---|---|---|
| Titanium Grade 6 | Ti‑5Al‑2.5Sn | UNS R54520, 3.7115, ASTM B265 Grade 6, AMS 4910/4918 | Medium‑strength alpha alloy with excellent weldability, high‑temperature stability and good corrosion resistance |
| Titanium Grade 5 (comparison) | Ti‑6Al‑4V | UNS R56400, ASTM B265 Grade 5 | Higher strength but lower maximum service temperature than Grade 6; often used where strength dominates over temperature |
| Titanium Grade 2 / 3 / 4 (comparison) | CP titanium | UNS R50400 / R50550 / R50700, ASTM B265 Grades 2–4 | Excellent corrosion resistance but lower strength and high‑temperature performance; Grade 6 chosen where elevated temperature and load are significant |
Stock & Product Availability
As a Titanium Grade 6 Plates stockist, Aurico Alloys LLP can supply plate and sheet thicknesses suitable for hot ducting, heat‑exchanger covers, burner decks, structural panels, pressure parts and seawater‑exposed components in chemical, oil & gas, marine, pharma and power plants, within the dimensions normally covered by ASTM B265 Grade 6. Plates are typically delivered in annealed condition to provide the specified medium strength with good toughness and formability, and services such as cut‑to‑size, profile cutting and edge preparation help fabricators and OEMs reduce machining and fit‑up time.
Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | — | 0.08 |
| Oxygen (O) | — | 0.20 |
| Nitrogen (N) | — | 0.03 |
| Hydrogen (H) | — | 0.015 (product analysis - ingot analysis for all other elements) |
| Iron (Fe) | — | 0.50 |
| Aluminium (Al) | 4.0 | 6.0 |
| Tin (Sn) | 2.0 | 3.0 |
| Other elements (each) | — | 0.1 |
| Other elements (total) | — | 0.4 |
| Titanium (Ti) | — | Balance (determined by difference) |
Composition limits for Titanium Grade 6. These are specification limits for the grade, not measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Mechanical & Physical Properties
| Property (Room Temperature, Typical Plate) | Typical Value – Titanium Grade 6 |
|---|---|
| Density | ≈4.55 g/cm³ |
| Ultimate Tensile Strength | ≈820–900 MPa depending on condition |
| Yield Strength (0.2% offset) | ≈750–827 MPa in wrought plate |
| Elongation | ≈15–18% in 50 mm gauge length |
| Modulus of Elasticity | ≈110 GPa |
| Melting Point | ≈1600 °C |
| Thermal Conductivity | ≈17 W/m·K at room temperature |
| Creep & Oxidation Behaviour | Creep resistance up to about 800 °F (≈425 °C) and oxidation resistance up to around 1200 °F (≈650 °C) noted in producer data |
| Corrosion Behaviour | Excellent corrosion resistance in many chemical and marine environments, including seawater, due to stable alpha structure and protective oxide film |
Applications & Benefits
- Chemical & Oil & Gas: Titanium Grade 6 plates are used in hot ducting, heat‑exchanger covers, pressure components and structural supports exposed to combined temperature, stress and corrosive media where CP titanium’s strength margin is limited and stainless steels can suffer scaling and rapid corrosion.
- Marine & Power Generation: In high‑temperature seawater and exhaust‑gas‑contact components such as turbine casings, exhaust ducting, hot seawater boxes and structural panels, Ti‑5Al‑2.5Sn provides a balance of medium strength, thermal stability and seawater corrosion resistance that extends life and reduces weight versus steel.
- Pharma & High‑Purity Systems: Grade 6 plate supports corrosive high‑temperature cleaning, waste‑treatment and support structures where both cleanliness and stability under thermal cycling are required, complementing CP titanium in cooler wetted equipment.
FAQ & Search Trends
Global Export Destinations
We ship worldwide from Mumbai. See every destination we export to on our export markets page.
Domestic Supply Network
We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.
Conclusion
Titanium Grade 6 Plates from Aurico Alloys LLP, supplied to UNS R54520 / 3.7115 chemistry ranges and ASTM B265 Grade 6 mechanical property requirements, give chemical, oil & gas, marine, pharma and power‑generation users a medium‑strength, lightweight and thermally stable titanium plate option that outperforms many stainless steels and lower‑strength titanium grades in hot, corrosive service are your most critical high‑temperature seawater, exhaust and process zones still relying on heavier, less stable plates instead of optimised Titanium Grade 6 plates?