Aluminium Products

Product Details:

A pure tungsten block is a solid, dense piece of tungsten metal, characterized by its high melting point, exceptional strength, and remarkable density. Tungsten (chemical symbol W), is a transition metal known for being one of the toughest and most heat-resistant elements, with a range of industrial and scientific applications due to its unique properties.

Key Characteristics:

·        High Density: Tungsten has one of the highest densities of any metal, approximately 19.3 g/cm³. This means a pure tungsten block is very heavy for its size, making it useful for applications requiring high mass in compact forms.

·        High Melting Point: Tungsten has the highest melting point of any element, at 3,422°C (6,192°F). This allows pure tungsten blocks to withstand extremely high temperatures without losing their structural integrity.

·        Hardness and Strength: Tungsten is incredibly strong and hard, with a hardness rating of about 7.5 on the Mohs scale. This makes it resistant to wear, scratching, and other forms of mechanical stress. It is also known for its ability to retain strength at elevated temperatures.

·        Corrosion Resistance: Pure tungsten is highly resistant to oxidation and corrosion, even at high temperatures. It is not prone to rusting or tarnishing, making it ideal for use in harsh chemical environments.

·        Electrical and Thermal Conductivity: Tungsten has good electrical conductivity, though not as high as metals like copper or silver. Its high thermal conductivity also makes it ideal for dissipating heat in industrial and scientific applications.

Applications:

·        Aerospace and Defense: Tungsten is used in various high-performance components like rocket nozzles, military armor-piercing projectiles, and heavy-duty aerospace parts.

·        Radiation Shielding: Tungsten's high density makes it an effective material for radiation shielding, particularly in X-ray machines, nuclear reactors, and medical equipment.

·        Heavy Machinery: Tungsten blocks are used in counterweights and ballast for cranes, aircraft, and other machinery due to their density.

·        Industrial Tools: Tungsten is used in the production of cutting tools, dies, and drills, especially in industries that require materials with high hardness and wear resistance.

Product Details:

COPPER PB4 ROUND BAR

Copper PB4 Round Bars are high-performance copper-based alloy bars that primarily consist of copper (Cu) and lead (Pb), known for their excellent machinability, corrosion resistance, and wear resistance. PB4, as per BS 1400 (British Standard), is a phosphor bronze alloy typically containing around 85–89% copper, 4–6% tin, and up to 4% lead. The addition of lead improves the machinability without significantly compromising the mechanical properties.

These round bars are commonly used in applications that require good strength, durability, and excellent bearing properties. The presence of tin enhances corrosion resistance and strength, while lead ensures easy cutting and improved surface finish during machining.

Key Properties:

• Material Grade: PB4 (BS 1400 Standard)

• Composition: Cu, Sn (Tin), Pb (Lead), trace elements

• Form: Solid Round Bar

• Machinability: Excellent due to lead content

• Corrosion Resistance: High, especially in marine and industrial environments

• Thermal and Electrical Conductivity: Good

• Finish: Typically available in bright, turned, or polished finish

Applications:

• Bushes and bearings

• Valve components

• Worm gears

• Pump parts

• Thrust washers

• Heavy-duty sliding and rotating machinery parts

Standards Compliance:

• BS 1400 PB4

• Equivalent international grades (on request)

Advantages:

• High wear resistance and strength

• Good thermal conductivity

• Excellent machinability

• Suitable for both dry and lubricated conditions

Copper PB4 Round Bars are ideal for precision engineering applications where dimensional stability and high mechanical strength are critical. Available in a wide range of diameters and lengths, these bars can be customized to meet specific project or industry requirements.

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