Table of Contents
- Tungsten Round / Hex / Square Bars Overview
- Technical Specifications
- Tungsten Materials and Key Properties
- Types of Tungsten Bars: Round, Hexagon & Square Profiles
- Key Advantages of Tungsten Bars
- Key Applications of Tungsten Round, Hex & Square Bars
- Quality Testing & Inspection
- Global Export Markets
- Frequently Asked Questions
- Contact Aurum Overseas
Tungsten Round / Hex / Square Bars Supplier & Exporter
Aurum Overseas is a trusted Tungsten Round / Hex / Square Bars Supplier stocking high-purity refractory metal stock. Built for extreme thermal environments, vacuum furnace heating elements, radiation shielding, balance weights, and electrical contact assemblies, our inventory handles extreme heat without melting or structural deformation.
As a certified Tungsten Round / Hex / Square Bars Exporter, we supply pure tungsten (99.95% min purity) and dense tungsten heavy alloy profiles. Choose from centerless ground Tungsten Round / Hex / Square Bars, square billets, and hex stock available in standard lengths or custom cut-to-size pieces.
As a leading Tungsten Bars Exporter, we supply refractory bar stock for aerospace defense, medical radiography, semiconductors, and furnace construction across the USA, Canada, Mexico, Germany, United Kingdom, France, Italy, Netherlands, Belgium, Spain, Poland, UAE, Saudi Arabia, Qatar, Kuwait, Oman, and Bahrain.
Technical Specifications
| Technical Parameter | Specification Details |
|---|---|
| Material Standard Specifications | ASTM B760 (Tungsten Plate, Sheet, and Rod), ASTM B777 (Tungsten Heavy Alloy Bar Stock) |
| Material Purity Grades | Pure Tungsten (99.95% W min), W-Ni-Fe (Tungsten-Nickel-Iron), W-Ni-Cu (Tungsten-Nickel-Copper), W-Cu (Tungsten-Copper) |
| Available Profiles | Round (Bar & Rod), Hexagon (Hex Bar), Square (Square Bar & Billet) |
| Density Range | 18.0 g/cm³ to 19.3 g/cm³ |
| Melting Point | 3,422 °C (6,192 °F) — Highest among all pure metals |
| Diameter / Cross-Section Size | 1.0 mm to 150 mm (0.04" to 6.0") |
| Length Options | 100 mm to 2,000 mm, Custom Cut-to-Length |
| Surface Finishes | Bright Polished, Forged |
| Dimensional Tolerances | ISO h7, h8, h9, h10 standards |
| Thermal Conductivity | 173 W/m·K at room temperature |
Tungsten Materials and Key Properties
| Alloy | Key Properties | Primary Role |
|---|---|---|
| Pure Tungsten (99.95% W) | Highest melting point (3,422 °C), low thermal expansion; brittle at room temperature. | High-vacuum heat zones & electrodes |
| W-Ni-Fe Alloy (Magnetic) | High density (up to 18.5 g/cm³), excellent strength, easy to machine. | Aerospace counterweights & balance blocks |
| W-Ni-Cu Alloy (Non-Magnetic) | High density, non-magnetic, zero magnetic field interference. | Medical radiation collimators & MRI shielding |
Types of Tungsten Bars: Round, Hexagon & Square Profiles
Aurum Overseas supplies high-purity pure tungsten and tungsten heavy alloy bars in round, hexagon, and square profiles for extreme thermal and radiation applications.
Tungsten Round Bars
Tungsten Hexagon Bars
Tungsten Square Bars
Key Advantages of Tungsten Bars
Unmatched Temperature Resistance
Retains solid structural integrity up to 3,422 °C, preventing sag or collapse in extreme thermal systems.
Exceptional Mass Density
Provides high mass per unit volume (19.3 g/cm³), making it compact and effective for vibration dampening and balance weights.
Superior Radiation Attenuation
Absorbs gamma rays and X-rays far more effectively than lead, requiring thinner shielding barriers in medical and nuclear equipment.
Low Thermal Expansion
Maintains tight dimensional stability under severe heating and cooling cycles, reducing thermal fatigue and mechanical stress.
Key Applications of Tungsten Round, Hex & Square Bars
| Industry Sector | Primary Components | Benefits |
|---|---|---|
| Aerospace & Defense | Flight control counterweights, rotor dampeners, balance blocks | Provides high mass in constrained airframe spaces for optimal balance. |
| Medical Radiography | X-ray collimators, isotope containers, radiation shields | High-density attenuation shields healthcare workers without toxic lead hazards. |
| High-Temp Furnaces | Vacuum heating elements, support hearth rails, hot-zone rods | Resists deformation, sagging, and chemical attack in inert/vacuum heating cycles. |
| Electronics & Lighting | Ion source electrodes, glass sealing rods, EDM electrodes | High electrical conductivity and thermal resistance under continuous arc discharge. |
| Semiconductor Tooling | Ion implantation parts, wafer processing contacts | Extreme purity prevents micro-chip contamination during high-energy processing. |
Quality Testing & Inspection
Every order supplied by your Tungsten Round / Hex / Square Bars Supplier is supported by standard quality documentation and material inspection practices:
- Mill Test Certificates: All shipments are accompanied by standard EN 10204 3.1 Mill Test Certificates verifying chemical purity, binder ratios, and density measurements.
- Density & Purity Verification: Batches undergo precise mass-volume testing to confirm theoretical density alongside chemical composition checks.
- Dimensional & Visual Inspection: Pre-dispatch verification ensures strict adherence to outer diameter, squareness, hex flat dimensions, and surface finish tolerances.
Global Export Markets
As an established Tungsten Round / Hex / Square Bars Exporter, Aurum Overseas supplies fully certified high-purity tungsten and tungsten heavy alloy bars to global aerospace, medical, and high-temperature engineering centers:
USA
Canada
Mexico
Germany
United
Kingdom
France
Italy
Netherlands
Belgium
Spain
Poland
UAE
Saudi
Arabia
Qatar
Kuwait
Oman
Bahrain
Frequently Asked Questions
Tungsten handles continuous temperatures above 2,000 °C in vacuum or inert gas environments without melting, outgassing, or losing structural rigidity.
Pure tungsten requires grinding, EDM, or warm machining due to its high hardness. Heavy tungsten alloys can be turned, drilled, and threaded using conventional carbide tools.
W-Ni-Fe offers higher strength and ductility but is magnetic. W-Ni-Cu is non-magnetic, making it ideal for medical imaging and magnetic-sensitive sensors.
Yes, we provide precision diamond-wheel cut-to-length services for all round, square, and hex tungsten profiles based on your specifications.
Contact Aurum Overseas
Aurum Overseas supplies certified pure tungsten and tungsten heavy alloy round, hex, and square bars for high-temperature furnace construction, radiation shielding, and precision aerospace components.
Contact our technical sales team for stock availability, custom cutting, or formal quotes: