High purity: ≥99.95% tungsten for stable high-temperature performance and low thermal expansion.
Precision customization: diameter 0.8–100 mm; forging/machining/polishing options; small-batch sampling.
Process control & QA: powder metallurgy with chemical/physical/surface/metallography tests; low impurities (single ≤0.01%, total ≤0.05%).
High density: 18.2–19.3 g/cm³ for radiation/thermal applications in electronics and furnace systems.
Electronics: semiconductor ion-implant parts, lighting components.
High-temperature furnaces: refractory parts for extreme heat.
Welding: GTAW/resistance welding electrodes with stable arc behavior.
Chemical composition test
Physical properties (density, thermal expansion)
Surface inspection (forging/polishing quality)
Metallography (microstructure uniformity)
Packaging: pearl-cotton protection + export wooden cases; anti-collision packing.
Shipping: global courier or sea freight; lead times aligned with your schedule.
LuminaTitanium offers high-purity (≥99.95%) tungsten bars produced via powder metallurgy. The bars combine low thermal expansion with high thermal conductivity and are available in customizable sizes and finishes for electronics, high-temperature furnaces, and welding electrodes.
| Parameter | Details | Value |
|---|---|---|
| Material | Pure tungsten | High-temp stability; low thermal expansion |
| Purity | Minimum | ≥99.95% |
| Diameter | Range | 0.8–100 mm |
| Condition | Processing states | Forging / Machining / Polishing |
| Density | Typical | 18.2–19.3 g/cm³ |
| Technology | Route | Powder metallurgy |
| Surface | Options | Black / Polished (as ordered) |
| Impurities | Limits | Single ≤0.01%; total ≤0.05% |
| Diameter (mm) | Black Bar Tolerance (%) | Polished Bar Tolerance (mm) | Length Tolerance (mm) |
|---|---|---|---|
| 0.8–3.0 | ±2 | ±0.03 | L≤50 ±0.5 ; 50<> ±1 |
| 3.0–6.5 | ±2 | ±0.05 | 100<> ±2 |
| 6.5–13.5 | ±2 | ±0.08 | 300<> ±3 |
| 13.5–25.0 | ±2 | ±0.15 | 500<> ±5 |
| 25.0–50 | ±2 | ±0.25 | 1000<> ±10 |
| 50–100 | ±2 | ±0.30 | — |
Note: “<>” follows the original spec notation. Please confirm exact length ranges when ordering.
Purity & spec: e.g., ≥99.95% tungsten; powder-metallurgy route (if required)
Dimensions & tolerance: diameter × length; black/polished; tolerance class/length tolerance segments
Condition & surface: forging/machining/polishing; roughness/straightness targets
Testing & QA: chemical/physical/thermal expansion; metallography; acceptance criteria
Documentation: MTC EN 10204 3.1; inspection reports; RoHS/REACH (as applicable)
Quantity & packaging: lot size; anti-collision packing; export wooden cases
Logistics & terms: target lead time; Incoterms; destination & carrier
Notes: end-use (electronics/furnace/welding) for tailored recommendations
