High-purity 3N5 (99.95%) / 4N (99.99%) Warm/Cold-Rolled & Stress-Relieved High-Purity tungsten (w) foil, sheet, plate & evaporation ribbon (W, CAS 7440-33-7) engineered for ultra-high-temperature vacuum furnaces, crystal growth, semiconductor processing, and corrosive environments.
Consolidated by powder metallurgy, vacuum arc remelting (VAR), or electron-beam melting and stress-relieved for high-temperature dimensional stability, our High-Purity tungsten (w) foil, sheet, plate & evaporation ribbon (W, CAS 7440-33-7) products deliver reliable performance in vacuum, inert-gas, and reducing furnace atmospheres.
Cross-rolled to fine laminar microstructure and chemically cleaned, tungsten foil and sheet serve as inner-layer radiation heat shields above 1,800 °C, setter trays, X-ray collimators, and resistive evaporation ribbons. Every shipment includes the producing mill's chemical purity Certificate of Analysis (reporting metallic and interstitial O, N, C, H trace levels in ppm) and pre-shipment dimensional verification.
| Property / Metric | Nominal Reference Value (Grade Dependent) |
|---|---|
| Composition & CAS # | W (CAS 7440-33-7) |
| Purity / Alloy Grade | 3N5 (99.95%) / 4N (99.99%) Warm/Cold-Rolled & Stress-Relieved |
| Density | 19.25 g/cm³ |
| Melting Point | 3,422 °C |
| Available Mill & Machined Forms | Foil 0.025–0.5 mm; Sheet 0.5–3.0 mm; Plate 3.0–25 mm (Alkali-Cleaned or Ground) |
Reference values reflect typical sintered, fused, or wrought grades. Exact batch test figures are confirmed on your written quotation and accompanying lot Certificate of Analysis.
Specify W purity or alloy grade (3N5 (99.95%) / 4N (99.99%) Warm/Cold-Rolled & Stress-Relieved), form and dimensions (Foil 0.025–0.5 mm; Sheet 0.5–3.0 mm; Plate 3.0–25 mm (Alkali-Cleaned or Ground)), surface finish (rolled, ground, electropolished, or chemically cleaned), and quantity.
Include target quantity, destination country/postal code for express air freight calculation, and any special cleanroom bagging or certification requests.
Prepare High-Purity Tungsten (W) Foil, Sheet, Plate & Evaporation Ribbon RFQ ↗Complementary furnaceware, substrates, PVD consumables, and refractory hardware frequently ordered together.
TB-W-CMPUltra-high-melting-point (3,422 °C) 99.95%+ pure tungsten crucibles, centerless-ground rods, rolled sheets, wire, and hot-zone elements for extreme vacuum thermal systems.
TB-MO-SHHigh-purity 3N5 (99.95%) / 4N (99.99%) Cross-Rolled & Annealed High-Purity molybdenum (mo) foil, sheet, plate & discs (Mo, CAS 7439-98-7) engineered for ultra-high-temperature vacuum furnaces, crystal growth, semiconductor processing, and corrosive environments.
TB-TA-SHHigh-purity 3N5 (99.95%) / 4N (99.99%) Annealed Ductile Grade High-Purity tantalum (ta) foil, sheet, rod, wire & capillary tubing (Ta, CAS 7440-25-7) engineered for ultra-high-temperature vacuum furnaces, crystal growth, semiconductor processing, and corrosive environments.
TB-PVD-BT99.95% pure tungsten, molybdenum, and tantalum resistive thermal evaporation boats, baffled box sources, and stranded tungsten wire baskets/coils.
Submit your purity grade, geometry, quantity, and documentation requirements. Every order includes the producing mill's batch Certificate of Analysis (COA) and pre-shipment dimensional verification.