A1 Metallics

Brass Casting

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Brass Casting, Brass Machined Castings

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Brass Casting & Machined Components From INDIA

A1metallics is a leading manufacturer from India with casting foundry offering Brass casting, Bronze casting, Copper casting along with high-end machining capabilities.

With over 3 decades of specialized expertise in brass casting and precision machining, we offer comprehensive manufacturing solutions for complex brass components. Our state-of-the-art foundry facility is equipped with both sand and gravity die casting capabilities, handling castings from 100 grams to 50 kilograms with exceptional dimensional accuracy. We maintain precise control over chemical compositions across various brass grades including CZ 114 C36000 C83600, C85800, and specialized red brass alloys.We offer Brass Screw machine parts, Brass CNC machined parts, Brass CNC machined components from castings as well as bars.

Our advanced machining center features multiple CNC machines including 4-axis latest CNC turning centers, enabling us to achieve tolerances up to ±0.02mm. We specialize in high-precision machining of intricate components for electrical, marine, and industrial applications. Our in-house metallurgical laboratory ensures consistent quality through spectrographic analysis, mechanical testing, and dimensional inspection using CMM equipment. From prototype development to high-volume production runs, we deliver cast and machined brass components that meet international standards including ASTM, BS, DIN, and JIS specifications.We offer a wide range of Brass Castings, Machined casting, Cast and Machined Brass Parts, Cast and Machined Brass Components.  We also make components from CDA 360 C36000 Brass free machining as well as casting grades. We also offer Gunmetal )red Brass) fittings and castings.

Brass Alloy Standards & Compositions

Red Brass Alloys

Standard/Grade Composition Properties & Applications
C83600 Cu 85%, Sn 5%, Pb 5%, Zn 5% High corrosion resistance, plumbing fixtures
C83400 Cu 81%, Sn 3%, Pb 7%, Zn 9% Excellent castability, valve bodies
C83800 Cu 83%, Sn 4%, Pb 6%, Zn 7% High pressure resistance, steam fittings
C83500 Cu 86%, Sn 5%, Pb 5%, Zn 4% Superior wear resistance, bearings

British Standards (BS)

BS Number Composition Properties
CZ121 (BS 2874) Cu 58%, Zn 39%, Pb 3% Free cutting brass, excellent machinability
CZ114 (BS 2874) Cu 57%, Zn 41%, Pb 2% High-grade casting brass
PB102 (BS 2872) Cu 63%, Zn 35%, Pb 2% High tensile brass, good for hot pressing
HTB1 (BS 2875) Cu 59%, Zn 39%, Sn 1%, Pb 1% High tensile brass casting
SCB3 (BS 1400) Cu 87%, Sn 7%, Pb 3%, Zn 3% Sand casting brass, high strength

US Standards (ASTM/UNS)

UNS Number Composition Properties
C85800 Cu 57%, Zn 40%, Pb 2%, Sn 1% High-strength yellow brass casting
C85200 Cu 72%, Zn 27%, Pb 1% High copper brass for electrical
C85500 Cu 59%, Zn 38%, Sn 1%, Pb 2% General purpose casting brass
C84400 Cu 81%, Zn 9%, Sn 2%, Pb 8% Semi-red brass, good machinability
C84800 Cu 76%, Zn 16%, Sn 3%, Pb 5% Semi-red brass, pressure tight

German Standards (DIN)

DIN Number Composition Properties
CuZn40Pb2 Cu 58%, Zn 40%, Pb 2% Standard casting brass
CuZn33Pb2 Cu 65%, Zn 33%, Pb 2% High copper content casting brass
CuZn35Pb2 Cu 63%, Zn 35%, Pb 2% Medium-duty machining brass
CuZn37Pb0.5 Cu 62.5%, Zn 37%, Pb 0.5% Low-lead architectural brass
RG5 Cu 85%, Sn 5%, Zn 5%, Pb 5% Red brass for pressure applications

Japanese Standards (JIS)

JIS Number Composition Properties
CAC203 Cu 58%, Zn 39%, Pb 3% High-grade casting brass
CAC406 Cu 84%, Sn 4%, Pb 6%, Zn 6% Bronze casting alloy
CAC201 Cu 62%, Zn 36%, Pb 2% General purpose brass casting
CAC502 Cu 88%, Sn 6%, Zn 4%, Pb 2% High-strength red brass
CAC704 Cu 80%, Sn 10%, Pb 10% High-tin red brass for bearings

European Standards (EN)

EN Number Composition Properties
CW617N Cu 58%, Zn 40%, Pb 2% Standard European brass
CW614N Cu 57%, Zn 39%, Pb 3% Free-machining brass
CW612N Cu 63%, Zn 35%, Pb 2% Forging brass
CC491K Cu 85%, Sn 5%, Zn 5%, Pb 5% Red brass casting alloy
CC493K Cu 87%, Sn 7%, Pb 4%, Zn 2% High-grade gunmetal

Casting Methods

  • Sand Casting
    • Green sand casting
    • Dry sand casting
    • Shell molding
    • CO2 process
  • Die Casting
    • Hot chamber die casting
    • Cold chamber die casting
    • Gravity die casting
  • Investment Casting
    • Lost wax process
    • Shaw process
  • Continuous Casting
    • Horizontal continuous casting
    • Vertical continuous casting
  • Centrifugal Casting
    • True centrifugal casting
    • Semi-centrifugal casting

Typical Components & Applications

Plumbing & Valves

  • Ball valves
  • Gate valves
  • Pipe fittings
  • Water meters
  • Pressure regulators Water Mixers,

Electrical Components

  • Terminal blocks
  • Cable glands
  • Switchgear components
  • Bus bars
  • Electrical Connectors, Terminal bars

Industrial Equipment

  • Pump components
  • Gear housings
  • Bearing cages
  • Bushings

Marine Applications

  • Propellers
  • Ship fittings
  • Marine hardware
  • Underwater components

Machining Specifications

General Tolerances

Dimension Range Standard Tolerance Precision Tolerance
Up to 10mm ±0.1mm ±0.02mm
10-30mm ±0.2mm ±0.05mm
30-100mm ±0.3mm ±0.1mm

Surface Finish

Process Achievable Ra (μm)
Turning 0.8-3.2
Milling 1.6-6.3
Grinding 0.2-1.6
Polishing 0.1-0.4

Machining Equipment

  • CNC Turning Centers
    • 2-axis lathes
    • Multi-axis turning centers
    • Swiss-type machines
  • CNC Machining Centers
    • 3-axis vertical mills
    • 4/5-axis machining centers
    • High-speed machining centers
  • Grinding Equipment
    • Surface grinders
    • Cylindrical grinders
    • Centerless grinders

Surface Finishing Methods

  • Mechanical Finishing
    • Polishing
    • Buffing
    • Shot blasting
    • Vibratory finishing
  • Chemical Finishing
    • Bright dipping
    • Chemical polishing
    • Passivation
  • Plating
    • Chrome plating
    • Nickel plating
    • Gold plating

Quality Control & Testing

  • Chemical composition analysis
  • Mechanical property testing
  • Dimensional inspection
  • Non-destructive testing
  • Pressure testing
  • Hardness testing
  • Metallographic examination

BRASS COMPARISON

China Germany Europe International USA Japan
GB Symbol No. Symbol No. Symbol No. No. JIS
TU2 OF-Cu 2.004 Cu-OFE CW009A Cu-OF C10100 C101H
SF-Cu 2.007 Cu-HCP CW021A C10300
T2 E-Cu58 2.0065 Cu-ETP CW004A Cu-ETP C11000 C1100
TP2 SF-Cu 2.009 Cu-DHP CW024A Cu-DHP C12200 C1220
TP1 SW-Cu 2.0076 Cu-DLP CW023A Cu-DLP C12000 C1201
H96 CuZn5 2.022 CuZn5 CE500L CuZn5 C21000 C2100
H90 CuZn10 2.023 CuZn10 CW501L CuZn10 C22000 C2200
H85 CuZn15 2.024 CuZn15 CW502L CuZn15 C23000 C2300
H80 CuZn20 2.025 CuZn20 CW503L CuZn20 C24000 C2400
H70 CuZn30 2.0265 CuZn30 CW505L CuZn30 C26000 C2600
H65 CuZn36 2.0335 CuZn36 CW507L CuZn36 C27700 C2700
H63 CuZn37 2.0321 CuZn37 CW508L CuZn37 C27200 C2720
HPb63-3 CuZn36Pb1.5 2.0331 CuZn35Pb1 CW600N CuZn35Pb1 C34000 C3501

Additional Alloy Types:

QBe2 CuBe2 CuBe2 C17200 C1720
ZQSn5-5-5 GB-CuSn5ZnPb GCuPbSn5Zn C83600 BCin6

Sand Casting Capabilities:

  • Maximum Size: 1,500 mm × 1000 mm × 500 mm
  • Weight Range: 0.5 kg – 500 kg
  • Annual Capacity: 5,000 tons – 6,000 tons

We also offer from our foundry- High quality Copper castings  and Bronze casting and LG2 Bronze Gunmetal castings.

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