Tantalum Plate (Ta2.5W)

Description

1. Product Overview

The Tantalum Plate (Ta2.5W) is a high-density, refractory metal alloy composed of 97.5% tantalum and 2.5% tungsten, engineered for superior strength and corrosion resistance at extreme temperatures. It is primarily utilized in chemical processing, aerospace propulsion, and high-temperature furnace components where failure is not an option. The key value proposition lies in its exceptional resistance to aggressive mineral acids (including HCl and H₂SO₄ at elevated temperatures) combined with a 40% increase in tensile strength over unalloyed tantalum. Strategically, this alloy addresses the critical market need for durable, long-life materials in corrosive and thermal environments, reducing downtime and total cost of ownership for global industrial operators.

2. Key Specifications & Technical Characteristics

• Chemical Composition: Ta balance (97.5% min.), W 2.5% ±0.5%; impurities (C, O, N, H, Fe, Ni, Si) < 0.1% total

• Purity Level / Grade: ≥ 99.95% pure Ta base (excluding tungsten addition); ASTM B708 Grade R05252 (or equivalent)

• Physical Characteristics:

  • Form: Rolled, flat plate (annealed or stress-relieved)

  • Color: Silver-gray metallic luster

  • Density: 16.6 g/cm³ (theoretical)

  • Melting Point: ~3,020°C (5,468°F)

  • Thickness range: 0.5 mm to 25.4 mm

  • Width/length: Custom up to 1,200 mm × 2,500 mm

• Packaging Options: Vacuum-sealed polybag + desiccant, inside wooden crates with foam interleaving; anti-corrosion VCI paper available for long-term storage

• Shelf Life: Indefinite when stored in dry, room-temperature, non-corrosive environment (≤50% RH)

3. Core Industrial Applications

• Chemical Processing Industry: Lined vessels, heat exchangers, and bayonet heaters handling boiling hydrochloric, sulfuric, or phosphoric acid — outperforms Hastelloy and zirconium by 3–5x in service life.

• Aerospace & Defense: Rocket nozzle throats and leading-edge heat shields for hypersonic vehicles; the 2.5% tungsten addition prevents recrystallization embrittlement above 1,500°C.

• High-Temperature Furnaces: Heating elements, radiation shields, and sintering trays in vacuum or inert gas environments up to 2,400°C — eliminates contamination common with molybdenum or graphite.

• Medical Implant Tooling: Electrodes for capacitive discharge welding of pacemaker casings; provides oxide film stability unmatched by stainless steel.

Performance advantage: Ta2.5W maintains ductility after prolonged thermal cycling, reducing crack-related failures by >60% compared to standard Ta.

4. Competitive Advantages

• Quality Consistency: ISO 9001:2025 certified; each plate is 100% ultrasonic tested for internal flaws and verified via GDMS for trace element control.

• Supply Reliability: Dedicated primary smelter relationship (non-conflict, audited supply chain). Stocked thicknesses from 1.0 mm to 12.7 mm available for 48-hour dispatch.

• Logistics Capability: Global hub distribution (US, EU, Asia) with DDP hazardous material clearance support.

• Price Competitiveness: Volume-based tiered pricing (≥500 kg) at 8–12% below European spot averages due to direct rolling mill integration.

• Sustainability: 82% recycled content eligible for LEED v4 credits; closed-loop scrap buyback program offered.

• Technical Support: Full mill certificates, creep rupture data per ASTM E139, and on-call metallurgical engineering for weld procedure qualification.

5. Commercial & Supply Information

• Minimum Order Quantity (MOQ): 50 kg per single thickness (trail orders); 250 kg for custom dimensions

• BULK 20MT Loading Capacity: 20 metric tons per 20ft standard container (net weight), utilizing palletized stacking with edge protectors — equivalent to approx. 1,200 sheets of 3mm × 600mm × 1,200mm