An authoritative guide designed for global aerospace, chemical, marine, and defense procurement directors. Discover complete metallurgical properties, international compliance benchmarks, machining guidelines, and direct mill ordering protocols from Almerca Titanium Industry Co., Ltd.
Grade 5 Ti-6Al-4V Titanium Sheet (UNS R56400 / 3.7165) represents the indisputable workhorse of the global titanium industry, accounting for over 50% of total worldwide titanium metal consumption. As an alpha-beta (α-β) dual-phase alloy, Ti-6Al-4V combines the microstructural advantages of both crystal phases: aluminum serves as an alpha-phase stabilizer to enhance elevated temperature strength and oxidation resistance, while vanadium acts as an active beta-phase stabilizer, enabling heat-treatability, deep hardenability, and exceptional structural ductility.
For high-reliability procurement in aerospace airframes, gas turbine components, pressure vessels, and subsea defense assemblies, precise control over interstitial elements (Oxygen, Nitrogen, Hydrogen, Iron, and Carbon) is essential. Oxygen acts as a potent solid-solution strengthener; however, excessive oxygen levels severely degrade low-temperature fracture toughness and impact resistance. Almerca Titanium Industry Co., Ltd. strictly enforces double and triple Vacuum Arc Remelting (VAR) processes to guarantee chemical homogeneity and ultraclean ingot purity.
| Element | Aluminum (Al) | Vanadium (V) | Iron (Fe) | Oxygen (O) | Carbon (C) | Nitrogen (N) | Hydrogen (H) | Titanium (Ti) |
|---|---|---|---|---|---|---|---|---|
| Min % | 5.50% | 3.50% | — | — | — | — | — | Balance |
| Max % (ASTM B265) | 6.75% | 4.50% | 0.40% | 0.20% | 0.08% | 0.05% | 0.015% | Balance |
| AMS 4911 Specification | 5.50 – 6.75% | 3.50 – 4.50% | 0.30% Max | 0.19% Max | 0.08% Max | 0.03% Max | 0.0125% Max | Balance |
The mechanical performance of Grade 5 Ti-6Al-4V titanium sheet is directly determined by its final thermal processing state. The vast majority of structural sheets are specified in the Mill Annealed (MA) condition to maximize ductility and formability, while high-stress load-bearing components utilize Solution Treated and Aged (STA) tempers to achieve yield strengths exceeding 1,100 MPa.
| Mechanical Property | Mill Annealed (ASTM B265 Standard) | Solution Treated & Aged (STA) | Grade 23 (Ti-6Al-4V ELI Comparison) |
|---|---|---|---|
| Tensile Strength (Ultimate, Rm) | ≥ 895 MPa (130,000 psi) | ≥ 1,100 MPa (160,000 psi) | ≥ 860 MPa (125,000 psi) |
| Yield Strength (0.2% Proof, Rp0.2) | ≥ 828 MPa (120,000 psi) | ≥ 1,000 MPa (145,000 psi) | ≥ 795 MPa (115,000 psi) |
| Elongation in 2 inches (50mm) | ≥ 10% (Sheets ≤ 4.75mm) | ≥ 8% | ≥ 12% |
| Hardness (Rockwell C / Brinell) | 30 – 36 HRC (300 HB) | 36 – 42 HRC (360 HB) | 28 – 32 HRC (280 HB) |
| Density | 4.43 g/cm³ (0.160 lb/in³) | 4.43 g/cm³ (0.160 lb/in³) | 4.43 g/cm³ (0.160 lb/in³) |
| Beta Transus Temperature (±15°C) | 995°C (1,823°F) | 995°C (1,823°F) | 995°C (1,823°F) |
| Elastic Modulus (Tension) | 114 GPa (16.5 x 10&sup6; psi) | 118 GPa (17.1 x 10&sup6; psi) | 114 GPa (16.5 x 10&sup6; psi) |
When issuing RFQs for defense or commercial aviation, specifying "ASTM B265 Grade 5" alone is frequently insufficient. ASTM B265 is a general industrial specification allowing up to 0.20% Oxygen and 0.40% Iron. For aerospace structural skin panels or fatigue-critical parts, AMS 4911 must be specified. AMS 4911 mandates tighter interstitial limits (O ≤ 0.19%, Fe ≤ 0.30%, N ≤ 0.03%), requires grain size control (ASTM 5 or finer), and enforces mandatory bend testing (bend factor of 4.5T for gauges up to 1.78mm and 5T up to 4.75mm). At Almerca Titanium Industry Co., Ltd., our stock program natively conforms to dual-certified ASTM B265 / AMS 4911 standards.
Cold-rolled and vacuum annealed thin Grade 5 titanium sheets conforming strictly to AMS 4911, MIL-T-9046, and ABS5183. Engineered with fine, equiaxed microstructure for optimal fatigue life and superplastic forming (SPF).
Hot-rolled, descaled, or sandblasted heavy Grade 5 titanium plates for marine armor, offshore subsea manifolds, and chemical reactors. Supplied with 100% Ultrasonic Testing (UT) per AMS 2631 / ASTM A388 standards.
Net-shape and near-net-shape cut Grade 5 titanium plate blanks processed on multi-axis dynamic waterjet centers. Eliminates Heat Affected Zones (HAZ), reducing down-stream CNC machining costs for buyers by up to 35%.
Almerca Titanium Industry Co., Ltd. operates state-of-the-art cold-rolling mills and hot-plate reversing rolling facilities capable of producing tight-tolerance Grade 5 sheets up to 2,500 mm in width and 6,000 mm in length. Standard surface finishes include Acid Pickled (Descaled), Sandblasted, Cold Rolled Bright Annealed, and Precision Mirror Polished (up to Ra 0.2 μm).
| Thickness Range (mm) | Standard Width Options | Standard Length Options | Thickness Tolerance | Flatness Standard |
|---|---|---|---|---|
| 0.5mm – 1.0mm | 1,000mm / 1,220mm (4 ft) | 2,000mm / 2,440mm (8 ft) | ± 0.04 mm | ASTM B265 Special Flatness (≤ 3mm/m) |
| 1.2mm – 4.75mm | 1,000mm / 1,220mm / 1,500mm | 2,440mm / 3,000mm / 6,000mm | ± 0.08 mm | ASTM B265 Standard Flatness |
| 5.0mm – 25.0mm | 1,500mm / 2,000mm / 2,500mm | 3,000mm / 6,000mm / Custom | ± 0.25 mm | Press Flattened (≤ 2mm/m) |
| 26.0mm – 100mm+ | Up to 2,500 mm | Up to 6,000 mm cut-to-size | -0 / +1.5 mm (Waterjet/Saw Cut) | Precision Ultrasonic Leveling |
A primary friction point in global procurement arises when manufacturing engineers encounter tooling failure, severe elastic recoil (springback), or cracking during downstream fabrication of Grade 5 Ti-6Al-4V sheets. Unlike commercially pure titanium (Grade 1 or Grade 2), Grade 5 exhibits significantly higher room-temperature yield strength and low thermal conductivity (6.7 W/m·K, approximately 1/4th that of carbon steel). Providing actionable engineering parameters drastically reduces scrapped parts and production downtime.
Because heat generated during cutting cannot dissipate rapidly into the titanium workpiece, thermal concentration occurs right at the carbide tool edge. To overcome work-hardening and chip galling, adhere to these shop-floor guidelines:
Room-temperature cold forming of Grade 5 sheet is strictly constrained by its low modulus of elasticity (114 GPa) and high yield ratio (Rp0.2/Rm ≈ 0.93), resulting in extreme tension springback (up to 15° to 25° bend springback). To achieve tight-radius aircraft skin profiles without micro-cracking:
Ti-6Al-4V titanium sheet possesses excellent weldability, provided molten weld pools are completely isolated from atmospheric contamination (Oxygen, Nitrogen, and Hydrogen) at temperatures exceeding 400°C. Weld embrittlement leads to catastrophic brittle failure.
As senior SEO growth directors and supply chain strategists analyze global purchasing inquiries across search engines and AI assistants (Perplexity, ChatGPT, SearchGPT), several macro-level shifts are transforming how procurement teams source Grade 5 Ti-6Al-4V titanium sheets.
With next-generation commercial aircraft (Boeing 787, Airbus A350) utilizing carbon-fiber reinforced polymers (CFRP) for up to 50% of their airframe structure, traditional aluminum skin panels are being systematically replaced by titanium. Because titanium's coefficient of thermal expansion (CTE) matches carbon composite matrix materials seamlessly, galvanically inert Grade 5 Ti-6Al-4V sheets are essential for wing spars, seat tracks, door surrounds, and engine nacelle bulkheads.
Global aerospace original equipment manufacturers (OEMs) and tier-1 machining suppliers are aggressively reducing geopolitical supply vulnerabilities. Purchasing executives are reallocating supply contracts away from concentrated Eastern European suppliers toward fully integrated, AS9100-certified titanium producers in Asia like Almerca Titanium Industry Co., Ltd., ensuring uninterrupted ingot-to-plate continuity.
The historical buy-to-fly ratio (ratio of raw metal purchased to final part mass) for aerospace titanium components frequently exceeded 10:1. The current market demand strongly favors mills offering advanced value-added processing: supplying laser pre-cut blanks, waterjet contours, blanchard surface grinding, and near-net shape forgings. This allows enterprise buyers to lower shipping weight, reduce machining scrap, and optimize cash flow.
Environmental, Social, and Governance (ESG) mandates are driving global buyers to request verifiable low-carbon titanium production. By incorporating Electron Beam Single Hearth Melting (EB-PAM) scrap recycling technology, Almerca Titanium reclaims clean solid titanium solids and turnings, reducing carbon footprints by over 45% compared to conventional primary sponge titanium extraction.
From VAR vacuum melting and forging presses to cold-rolling sheet mills, our full-chain infrastructure eliminates third-party manufacturing delays.
Every single sheet batch is dispatched with complete chemical, mechanical, microstructural, and non-destructive test certificates verified by certified metallurgists.
Maintained standing inventory of over 800 tons of Grade 5, Grade 2, and specialized aerospace sheets guarantees standard order dispatch within 7 to 15 days.
Experienced export logistics team providing seaworthy wooden crate packaging, customs clearance, and DDP/FOB/CIF international shipping terms.
Connect with our chief metallurgical engineers and B2B pricing specialists today. Receive a custom quote, dimensional tolerance review, and mill certificate verification within 4 working hours.
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