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Bronze Machined Casting, Bronze Parts, Bronze Components

Bronze casting, Bronze Parts, bronze ComponentsBronze Fittings Bronze parts Bronze casting foundry

Bronze casting combined with precision machining offers exceptional versatility in producing high-performance components for various industrial applications. Our manufacturing alloy guide covers Bronze alloy specifications, casting methods, and machining processes used in manufacturing precision components. Our Bronze casting foundry and CNC machine shop churn high quality precision Bronze castings , Bronze parts and Bronze components for international usage. We have been casting and machining various Bronze, Leaded Bronze, Aluminium Bronze, Phosphor Bronze, Manganese Bronze Alloys for 3 decades.

Bronze Alloy Specifications

US Grade (UNS) UK/EU Grade Common Name Composition Properties Applications
C83600 CC480K / LG2 85-5-5-5 Bronze (Gunmetal) 85% Cu, 5% Sn, 5% Pb, 5% Zn Excellent machinability, Good pressure tightness Valves, Pumps, Gears, Electrical connectors, Boat and marine hardware, Hotline clamps, Transformer Ground clamps,  Transformer terminals, Transformer ground connectors, Transformer spades, NEMA spaced Transformer terminals and spades, Spade terminals, Bronze Vise clamps, grounding and Bonding connectors, Bronze connectors for switchgears , Bronze tees, Elbows, Unions, Hex Nipples, Hose nipples, Hose barbs,
C90300 CC333G / LB1 Navy Bronze G 88% Cu, 8% Sn, 4% Zn High strength, Corrosion resistant Marine components, Propellers, Marine valves and seacocks, Hull fittings and through-hull components
C95400 CC331G / AB2 Aluminum Bronze 85% Cu, 11% Al, 4% Fe High strength, Wear resistant Bearings, Worm gears, Bronze Hotline clamps ,Aluminum Bronze Casting for Transformer Connectors and Spades , Transformer ground lugs, Transformer Ground Clamps,
C93200 PB102 / LB2 SAE 660 83% Cu, 7% Sn, 7% Pb, 3% Zn Self-lubricating, Good wear resistance Bushings, Sleeve bearings, Valve fittings,
C86300 CC762S Manganese Bronze 65% Cu, 25% Zn, 5% Al, 3% Mn High strength, Good wear resistance Heavy-duty bearings, Gears, Pipe fittings, hose fittings, bronze fittings for hydralics, Manifolds,
C92200 CC491K / LG4 Navy M Bronze 88% Cu, 6% Sn, 1.5% Pb, 4.5% Zn Good machinability, Corrosion resistant Pumps, Valves, Marine hardware, electrical components, Hardware parts,
C95500 CC333G / AB2 Nickel Aluminum Bronze 81% Cu, 9% Al, 4.5% Ni, 4% Fe Excellent strength and corrosion resistance Marine propellers, Pump impellers, Bronze acorn clamps, Bronze grounding clamps, Transformer Spade terminals, Vise Connectors, Substation Connectors, Electrical hardware, Hotline clams,  Bronze flanges, Flanged nuts,
C87600 CC754S Silicon Bronze 95% Cu, 4% Si, 1% Mn High strength, Excellent corrosion resistance Marine fittings, Thru hulls, Architecture, Vise connectors,  Pipe fittings,  Worm wheels
Spur gears, Helical gears, Gear blanks, Bevel gears
C91300 CC482K Tin Bronze 91% Cu, 9% Sn High wear resistance, Low friction Gears, Bearings, Bronze Bushings, Hose Nipples, Hose barbs, hose fittings, Electrical connectors, Wedge connectors, Lay in Lugs, Lay in connectors, Lay in clamps,
C96400 CC334G Copper-Nickel Bronze 70% Cu, 30% Ni Superior corrosion resistance Marine valves, Pump components, Bronze Flanges, Pipe flanges,  Sealing rings, Bronze washers, Pipe fittings,
C95800 CC335G Nickel Aluminum Bronze 81% Cu, 9% Al, 5% Ni, 4% Fe High strength at elevated temperatures Aerospace components, Propellers, Valve bodies, Gate valve components,
Globe valve parts, Ball valve seats ,Valve stems and guides
C90700 CC497K Tin Bronze 89% Cu, 11% Sn High strength, Good bearing properties Heavy-duty bearings, Worm wheels
C94700 CC493K Nickel-Tin Bronze 86% Cu, 8% Sn, 4% Ni, 2% Zn Excellent wear resistance Steam fittings, Valve seats,  Pump casings, Pump Impellers
Wear rings, Pump shaft sleeves, Stuffing box bushings, Pump end covers,
C95200 CC330G Aluminum Bronze 88% Cu, 10% Al, 2% Fe Good strength and ductility Bearings, Gears, Bushings, Transformer grounding clamps , Bus bar components, Terminal connectors, Cable glands, Junction box components, transformer tank connectors, Grounding and bonding connectors, Grounding clamps, Earthing clamps,
C95900 CC333G Nickel Aluminum Bronze 78% Cu, 13% Al, 5% Ni, 3% Fe Maximum strength and hardness Heavy-duty marine applications

Bronze Casting Methods

Bronze Sand Casting, Bronze Green Sand Casting

Most common method for bronze components, offering:

  • Suitable for large components up to several tons
  • Complex geometries possible
  • Cost-effective for low to medium production runs
  • Typical tolerance: ±0.5mm per 25mm

Bronze Investment Casting (Lost Wax Casting)

Preferred for precision components:

  • Excellent surface finish
  • High dimensional accuracy
  • Complex internal passages possible
  • Typical tolerance: ±0.1mm per 25mm

Bronze Centrifugal Casting

Ideal for cylindrical components:

  • Dense, high-quality castings
  • Excellent concentricity
  • Suitable for bushings and sleeves
  • Typical tolerance: ±0.25mm per 25mm

Bronze Continuous Casting

For bar stock and tubes:

  • Consistent material properties
  • Good for high-volume production
  • Excellent material yield
  • Typical tolerance: ±0.2mm per 25mm

CNC Machining Operations

Operation Description Typical Tolerances Surface Finish
CNC Turning For cylindrical components, facing, threading ±0.025mm Ra 0.8-3.2µm
CNC Milling Flat surfaces, pockets, profiles ±0.05mm Ra 1.6-6.3µm
Drilling Holes, bores, tapping ±0.1mm Ra 3.2-12.5µm
Boring Precision internal diameters ±0.02mm Ra 0.4-1.6µm

Machining Parameters for Bronze

  • Cutting Speed: 60-120 m/min
  • Feed Rate: 0.1-0.5 mm/rev
  • Depth of Cut: Up to 5mm
  • Tool Material: Carbide or HSS
  • Cooling: Flood coolant recommended

Quality Control Measures

  • Chemical composition analysis
  • Mechanical property testing
  • Non-destructive testing (NDT)
  • Dimensional inspection
  • Surface finish measurement
  • Pressure testing where applicable

Applications for Bronze Cast machined parts and Bronze machined Components

  • Marine components and fittings 9
  • Marine Grade Casting, Pump impellers in AB1 and AB2 , ALBC 1 , ALBC 2 , ALBC 3 , ALBC 4
  • Industrial valve bodies and trim
  • Bearing bushings and wear plates
  • Pump components
  • Gears and worm wheels
  • Architectural hardware

Design Considerations

  • Draft angles: Minimum 1° for external surfaces, 2° for internal surfaces
  • Wall thickness: Minimum 3mm recommended
  • Corner radii: Minimum 3mm to prevent stress concentration
  • Machining allowance: 2-3mm on critical surfaces
  • Parting line location: Consider for optimal casting quality

Check our Bronze Shell molding parts and castings  and Gunmetal Casting LG2 Casting CDA 836 Bronze Casting

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