Titanium Alloy (Ti-6Al-4V GRADE 5)

Description

1. Product Overview

Ti-6Al-4V Grade 5 is the globally benchmarked alpha-beta titanium alloy, recognized as the workhorse of high-performance metallurgy for aerospace, medical, and marine engineering. Its primary industrial use lies in manufacturing critical structural components—airframe fasteners, turbine blades, surgical implants, and deep-sea pressure vessels—where an exceptional strength-to-weight ratio and corrosion resistance are non-negotiable. The key value proposition is operational reliability under extreme conditions: superior fatigue life and fracture toughness at up to 400°C, combined with biocompatibility. Strategically, securing a compliant, traceable source of Grade 5 alloy mitigates supply chain risk and enables engineering teams to down-gauge weight without compromising safety margins.

2. Key Specifications & Technical Characteristics

• Chemical Composition (per ASTM B348 / AMS 4928):

  • Aluminum (Al): 5.5–6.75%

  • Vanadium (V): 3.5–4.5%

  • Iron (Fe): ≤ 0.25% max

  • Oxygen (O): ≤ 0.20% max

  • Titanium (Ti): Balance

• Purity / Grade:
  Grade 5 (UNS R56400) | Certified to ASTM F136 (medical), AMS 4911 (aerospace sheet/plate), MIL-DTL-46077 (military)

• Physical Characteristics (as delivered – mill annealed):

  • Form: Round bars (diameter 6mm–250mm), flat sheets (0.5mm–50mm), forged billets

  • Color: Metallic silver-gray

  • Density: 4.43 g/cm³

  • Tensile strength: min 895 MPa

  • Yield strength (0.2% offset): min 825 MPa

  • Elongation: min 10%

• Packaging Options:

  • Anti-corrosion VCI paper + polypropylene wrap, wooden spools for wire, export-grade plywood crates (ISPM 15 compliant)

• Shelf Life:
  Indefinite under dry, covered storage (no humidity >60%). No chemical degradation; surface passivation preserved for 24 months from mill test report (MTR) date.

3. Core Industrial Applications

• Aerospace & Defense
  Use case: Fan blades, landing gear linkages, hydraulic tubing.
  Advantage: Outperforms 7075-T6 aluminum in fatigue life by 4x at 300°C. Reduces airframe weight 35–40% vs. stainless steel.

• Medical Implants & Surgical Tools
  Use case: Hip stems, bone screws, dental abutments, spinal rods.
  Advantage: Superior osseointegration and MRI compatibility (non-magnetic). No toxic vanadium-ion release compared to lower-grade alloys.

• Marine & Offshore Engineering
  Use case: Propeller shafts, ROV pressure hulls, subsea valve bodies.
  Advantage: Pitting resistance equivalent to super-duplex stainless steel at 60% lower density. Zero crevice corrosion in seawater up to 50°C.

• Motorsport & High-Performance Automotive
  Use case: Connecting rods, exhaust valves, suspension rocker arms.
  Advantage: Maintains creep resistance where heat-treated 4340 steel softens. Enables unsprung mass reduction of 8–12 kg per corner.

4. Competitive Advantages

• Quality Consistency:
  Every melt is vacuum-arc remelted (VAR) double-melted. All shipments include a certified MTR with full chemistry, mechanicals, and ultrasonic inspection (class A1). Batch-to-batch CV (coefficient of variation) <2% for Al and V content.

• Supply Reliability:
  Multiple melt sources (US, EU, Asia qualified). 98.7% on-time delivery over 28 months. Safety stock held in Rotterdam, Houston, and Shanghai.

• Logistics Capability:
  In-house cutting, chamfering, and custom-length sawing. Traceability maintained from ingot to individual bar via laser-etch UID.

• Price Competitiveness:
  Tier-1 volume enables pricing 9–12% below average spot market for same AMS-certified material. No premium for smaller diameters (6mm–25mm).

• Sustainability & Documentation:
  72% recycled titanium content available upon request. Full REACH and RoHS compliance. Conflict-free sourcing declaration provided.

• Technical Support:
  In-house metallurgists available for weld procedure qualification (GTAW, EBW, friction stir). Free failure analysis consultation with qualifying orders.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ):
  BULK 20MT (mixed diameters permitted; one mill heat maximum for same chemistry lot)

• Loading Capacity (MT per container):

  • 20-ft standard container: 20 MT (net, palletized) – fully utilized per MOQ

  • 40-ft high-cube container: 24 MT (net) – use only for combined orders with other titanium grades (additional certification fees apply)

Lead time from mill order: 6–8 weeks for first 20MT; 4 weeks for repeat orders under supply agreement.