Manufacturer of Custom Machined Parts

Cast C84400

This group of alloys is typically found in plumbing applications. C84400 is the most widely used alloy in the semi-leaded red brass family, known for its reasonable cost with good machining and casting properties. The lead content ensures pressure tightness. Red brass is also used for low-cost bearing materials under low loads.

Information

PRODUCT DESCRIPTION: Leaded Semi-Red Brass
SOLIDS: 1/2" to 13" O.D.
TUBES: 1” to 16” O.D.
RECTANGLES: Up to 20”
STANDARD LENGTHS: 144”
SHAPE/FORM: semi-finished, mill stock or near-net shapes, anode, bar stock, billet/bloom, squares, hex, plate, profile or structural shape, flats/rectangular bar

Typical Uses

ARCHITECTURE: ornamental fixtures
BUILDERS HARDWARE: cases for dead bolt locks, dead bolt locks, door hardware for prisons, hardware
BUILDING: cooling equipment, heating equipment
CONSUMER: musical instruments
ELECTRICAL: electrical equipment
INDUSTRIAL: low-pressure fittings, pump fixtures, valve bodies for the water industry, valve seat, valves, valves for water meters
MARINE: boat parts, marine hardware, nuts for transducers
PLUMBING: fixtures, pipe fittings

Similar or Equivalent Specification

CDAASTMSAEAMSFederalMilitaryOther
C84400B505 B505M
B271 B271M
B584
WW-U-516Valve Metal

Chemical Composition

Cu%1Pb%Sn%Zn%Fe%P%Ni%1,2Al%S%Sb%Si%
78.00-82.006.00-8.002.30-3.507.00-10.000.401.501.000.0050.080.250.005

Chemical Composition according to ASTM B505/B505M-18

¹In determining Cu min., Cu may be calculated as Cu + Ni. ²Ni value includes Co.
Note: Cu + Sum of Named Elements, 99.5% min. Single values represent maximums.

Machinability

Copper Alloy UNS No.Machinability RatingDensity (lb / in³ at 68°F)
C84400900.314

Mechanical Properties

Tensile Strength, minYield Strength, at 0.5% Extension Under Load, minElongation, in 2 in. or 50 mm minBrinell Hardness (500 kg load)Remarks
ksiMPaksiMPa%typical BHN
30207151031655

Chemical Composition according to ASTM B505/B505M-18

Physical Properties

 US CustomaryMetric
Melting Point - Liquidus1840 °F 1004 °C
Melting Point - Solidus1549 °F 843 °C
Density0.314 lb/in³ at 68 °F 8.69 gm/cm³ at 20 °C
Specific Gravity8.698.69
Electrical Conductivity16.4% IACS at 68 °F 0.095 MegaSiemens/cm at 20 °C
Thermal Conductivity41.8 Btu/sq ft/ft hr/°F at 68 °F 72.4 W/m at 20 °C
Coefficient of Thermal Expansion 68-57210 · 10-6 per °F (68-572 °F)17.3 · 10-6 per °C (20-300 °C)
Specific Heat Capacity0.09 Btu/lb/°F at 68 °F377.1 J/kg at 20 °C
Modulus of Elastic in Tension13000 ksi89600 MPa
Magnetic Permeability11

Fabrication Properties

TechniqueSuitability
SolderingExcellent
Brazing*Good
Oxyacetylene WeldingNot Recommended
Gas Shielded Arc WeldingNot Recommended
Coated Metal Arc WeldingFair
Machinability Rating90

Thermal Properties

TreatmentValue*Time**
Stress Relief500
Solution Treatment0

*Temperature is measured in Fahrenheit. **For Stress Relief, Solution Treatment and Annealing - Time is measured in hours/inch of thickness. For Precipitation Heat Treatment - Time is measured in hours.

Ready for a Quote?

Randall Bearings has a team of experts ready to assist you in selecting the proper materials and manufacturing your custom part.

Scroll to Top