C69300 Lead Free Brass

C693 Lead-Free Brass has excellent dezincification corrosion resistance and excellent stress corrosion cracking resistance. One if its unique features is that it is corrosion resistant to chemicals found in water and gas. It has high strength equivalent to stainless steel. It also has good machinability, excellent hot forgeability, easily accepts solder and brazing, and has excellent polishing and plating capabilities. C69300 Lead-Free Brass is compliant with the Federal Drinking Water Act, and it also support applications following the U.S. EPA standards for antimicrobial performance.

Common Applications of C69300 Brass:

Plumbing

  • Stop Valves
  • PEX fittings
  • Ball valves
  • Commercial and Residential water faucet parts

Automotive

  • Fluid Connectors
  • Sensor Bodies
  • Thermostat Parts

Industrial

  • Automatic Screw Machine Parts
  • Bolts
  • Condenser Tube Plate
  • Nuts
  • Pneumatic Fittings
  • Pump Parts
  • Screw Machine Products
  • Valve Stems
  • Valve Bodies for Water

Category:

C69300 Product description:

Compliance: C69300 is compliant with key legislation including (1) Federal Safe Drinking Water Act – SDWA, (2) S. 3874 Federal Reduction of Lead in Drinking Water Act, (3) California AB1953, (4) Vermont Act 193, and is NSF/ANSI/CAN 61-2022 compliant

Typical uses

Automotive: fluid connectors, sensor bodies, thermostat parts
Industrial: automatic screw machine parts, bolts, condenser tube plate, nuts, pneumatic fittings, pump parts, screw machine parts, valve bodies for water, valve stems
Marine: marine products, propeller shafts
Plumbing: faucet stems, faucets, plumbing fittings, water meter cases

Similar or equivalent specification

CDAASTMSAEAMSFederalMilitaryOther
C69300B371
B371M

Chemical composition

Cu%1Pb%Sn%Zn%Fe%P%Ni%2Mn%Si%
*Pb content is greater than 0.02%. 1Cu value includes Ag. 2Ni value includes Co.
Single values represent maximums.
73.00-
77.00
0.02*-
0.09
0.20Rem.0.100.04-
0.15
0.100.102.70-
3.40

Machinability

Copper alloy UNS No.Machinability ratingDensity (lb/in3 at 68 °F)
C69300850.300

Mechanical properties

Mechanical properties according to ASTM B371/B371M-19

C69300

H02 half hard

Size range: up to 1/2″ inclusive

Tensile strength, minYield strength, at 0.5% extension under load,, minElongation, 4x Diameter or Thickness of Specimen, minRockwell “B” hardnessRemarks
ksiMPaksiMPa%max HRB approx
8558545310585

Size range: over 1/2″ to 1″ inclusive

Tensile strength, minYield strength, at 0.5% extension under load,, minElongation, 4x Diameter or Thickness of Specimen, minRockwell “B” hardnessRemarks
ksiMPaksiMPa%max HRB approx
75515352401080
Size range: over 1″ to 2 1/2″ inclusive
Tensile strength, minYield strength, at 00.5% extension under load,, minElongation, 4x Diameter or Thickness of Specimen, minRockwell “B” hardnessRemarks
ksiMPaksiMPa%max HRB approx
70480302051075

Physical properties

Physical properties provided by CDA
US CustomaryMetric
Melting point – liquidus1616 °F880 °C
Melting point – solidus1571 °F855 °C
Density0.3 lb/in3 at 68 °F8.3 gm/cm3 at 20 °C
Specific gravity8.38.3
Electrical conductivity8% IACS at 68 °F0.046 MegaSiemens/cm at 20 °C
Thermal conductivity21.8 Btu/sq ft/ft hr/°F at 68 °F37.76 W/m at 20 °C
Coefficient of thermal expansion 68-21210.3 · 10-6 per °F (68-212 °F)17.8 · 10-6 per °C (20-100 °C)
Coefficient of thermal expansion 68-39210.3 · 10-6 per °F (68-392 °F)17.8 · 10-6 per °C (20-200 °C)
Coefficient of thermal expansion 68-57210.4 · 10-6 per °F (68-572 °F)18 · 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 elasticity in tension15200 ksi104801 MPa

Fabrication properties

Fabrication properties provided by CDA
TechniqueSuitability
SolderingExcellent
BrazingGood
Oxyacetylene weldingGood
Gas shielded arc weldingGood
Coated metal arc weldingGood
Spot weldGood
Seam weldGood
Butt weldGood
Capacity for being cold workedPoor
Capacity for being hot formedExcellent
Forgeability Rating95
Machinability rating85

Thermal properties

Thermal properties provided by CDA
*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.
TreatmentMinimum*Maximum*Value*Time**
Stress relief0
Solution treatment0
Annealing9321112
Hot treatment12021517

Common fabrication processes

Forming and bending, machining, shearing

Common fabrication processes provided by CDA