Brass & Bronze Centrifugal Casting — High-Integrity Cylindrical Components
Brass Parts India is an established manufacturer of Brass Centrifugal Castings and Bronze Centrifugal Castings in India. Our centrifugal casting process produces high-density, porosity-free cylindrical and ring-shaped components with superior mechanical properties — ideal for demanding industrial and engineering applications.
What is Centrifugal Casting?
Centrifugal casting is a process where molten metal is poured into a rotating mould. The centrifugal force pushes the metal against the mould walls, producing a dense, homogeneous casting free from porosity, shrinkage, and inclusions. Lighter impurities migrate to the inner bore and are machined away.
Types of Centrifugal Casting
Horizontal Centrifugal Casting
Ideal for long cylindrical tubes, pipes, sleeves, and bushings with excellent wall thickness uniformity. Produces dense outer surfaces with clean inner bore after machining.
Vertical Centrifugal Casting
Used for ring-shaped, flanged, and disc-shaped components — bronze bushings, flanged bearing shells, valve bodies, and pulley blanks.
Brass Alloys for Centrifugal Casting
- High Tensile Brass (HTB1 / CW721R): Outstanding strength and wear resistance for heavy-duty bushings and gears.
- Naval Brass (CW712R / CZ112): Excellent seawater corrosion resistance for marine bushings and pump sleeves.
- Manganese Brass: High strength and toughness for worm gears and heavy machinery.
- Aluminium Brass: Good corrosion resistance for heat exchanger tubes and condensers.
Bronze Alloys for Centrifugal Casting
- Phosphor Bronze (CC481K / SAE 65): Most widely used — excellent anti-friction and wear resistance for heavy-duty bearings.
- Leaded Phosphor Bronze (CC483K / SAE 660): Self-lubricating; for moderate-load bushings and bearings.
- Gunmetal / Red Bronze (CC491K / LG2): Excellent pressure tightness; for valve bodies, pump casings, marine fittings.
- Tin Bronze (CC480K / SAE 62): High load capacity for gear teeth, worm wheels, bearing shells.
- Aluminium Bronze (CC333G / AB2): Outstanding strength and cavitation resistance for propellers and subsea components.
Key Advantages
- Dense, porosity-free castings with superior mechanical properties
- Fine grain structure due to rapid solidification under centrifugal force
- Higher tensile strength and fatigue resistance vs. static castings
- Cost-effective for cylindrical and ring-shaped components
- Slag and inclusions segregate to inner bore (machined away)
- Suitable for bimetallic castings (e.g., bronze over steel shaft)
Applications
- Bearings & Bushings: Plain bearings, thrust washers, flanged bushings for all industrial machinery
- Marine Industry: Propeller shaft bearings, stern tube bearings, sea-water pump impellers
- Steel & Rolling Mills: Rolling mill bearings, pinion stand bushings, back-up roll chocks
- Mining & Construction: Excavator arm bushings, crusher bearings, conveyor idler bearings
- Pumps & Compressors: Wear rings, impeller bushings, cylinder liners
- Power Generation: Turbine bushings, hydraulic turbine guide bushings
Technical Specifications
| Parameter | Specification |
|---|---|
| Casting Method | Horizontal & Vertical Centrifugal Casting |
| Weight Range | 0.5 kg to 500 kg per piece |
| Outside Diameter | 25 mm to 1500 mm |
| Length / Height | Up to 3000 mm (horizontal); up to 500 mm (vertical) |
| Wall Thickness | 10 mm to 200 mm |
| Quality Standards | ISO 9001:2015 | BS 1400 | ASTM B505 | DIN 1705 |
Frequently Asked Questions
Q1. What makes centrifugal casting better than sand casting for bushings?
Centrifugal casting eliminates porosity, shrinkage voids, and gas inclusions, resulting in higher tensile strength, better fatigue resistance, and improved wear performance — translating to significantly longer bushing service life.
Q2. Which bronze alloy is best for heavy-duty bushings?
Phosphor Bronze (CC481K / SAE 65) is preferred for high-load, slow-speed applications. For higher speeds with moderate loads, Leaded Phosphor Bronze (SAE 660) with self-lubricating properties is recommended.
Q3. Can you supply centrifugal castings in machined condition?
Yes. We supply in as-cast, semi-machined (OD/ID rough turned), or fully machined condition. In-house CNC turning and boring can machine to finished dimensions including keyways, lubrication grooves, flanges, and threads.
Q4. Do you provide material test certificates (MTC)?
Yes. Full MTCs with chemical composition (spectrometer) and mechanical properties (tensile, hardness, elongation) are provided with every batch. Third-party inspection by Lloyd’s, Bureau Veritas, DNV-GL, or ABS can be arranged.
Q5. What is the size range for centrifugal castings?
We produce castings from 25 mm OD (small bore bushings) up to 1500 mm OD (large industrial rings), weighing under 1 kg to over 500 kg per piece.
Related Terms
Bronze centrifugal casting India | Phosphor bronze bushing casting | Horizontal centrifugal casting | Gunmetal LG2 casting | Aluminium bronze casting | Centrifugally cast bronze tube | Bronze bearing casting manufacturer | Tin bronze casting India | HTB centrifugal casting | SAE 65 bronze casting | ASTM B505 casting | Bronze casting exporter India
Contact Brass Parts India for a competitive quotation on brass and bronze centrifugal castings. We respond within 24 hours.
