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
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
| CDA | ASTM | SAE | AMS | Federal | Military | Other |
|---|---|---|---|---|---|---|
| C69300 | B371 B371M |
Chemical composition
| Cu%1 | Pb% | Sn% | Zn% | Fe% | P% | Ni%2 | Mn% | 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 | 0.20 | Rem. | 0.10 | 0.04- 0.15 | 0.10 | 0.10 | 2.70- 3.40 | |||
Machinability
| Copper alloy UNS No. | Machinability rating | Density (lb/in3 at 68 °F) |
|---|---|---|
| C69300 | 85 | 0.300 |
Mechanical properties
C69300
H02 half hard
Size range: up to 1/2″ inclusive
| Tensile strength, min | Yield strength, at 0.5% extension under load,, min | Elongation, 4x Diameter or Thickness of Specimen, min | Rockwell “B” hardness | Remarks | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | max HRB approx | |
| 85 | 585 | 45 | 310 | 5 | 85 | |
Size range: over 1/2″ to 1″ inclusive
| Tensile strength, min | Yield strength, at 0.5% extension under load,, min | Elongation, 4x Diameter or Thickness of Specimen, min | Rockwell “B” hardness | Remarks | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | max HRB approx | |
| 75 | 515 | 35 | 240 | 10 | 80 | |
Size range: over 1″ to 2 1/2″ inclusive
| Tensile strength, min | Yield strength, at 00.5% extension under load,, min | Elongation, 4x Diameter or Thickness of Specimen, min | Rockwell “B” hardness | Remarks | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | max HRB approx | |
| 70 | 480 | 30 | 205 | 10 | 75 | |
Physical properties
Physical properties provided by CDA | |||||||||||
| US Customary | Metric | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Melting point – liquidus | 1616 °F | 880 °C | |||||||||
| Melting point – solidus | 1571 °F | 855 °C | |||||||||
| Density | 0.3 lb/in3 at 68 °F | 8.3 gm/cm3 at 20 °C | |||||||||
| Specific gravity | 8.3 | 8.3 | |||||||||
| Electrical conductivity | 8% IACS at 68 °F | 0.046 MegaSiemens/cm at 20 °C | |||||||||
| Thermal conductivity | 21.8 Btu/sq ft/ft hr/°F at 68 °F | 37.76 W/m at 20 °C | |||||||||
| Coefficient of thermal expansion 68-212 | 10.3 · 10-6 per °F (68-212 °F) | 17.8 · 10-6 per °C (20-100 °C) | |||||||||
| Coefficient of thermal expansion 68-392 | 10.3 · 10-6 per °F (68-392 °F) | 17.8 · 10-6 per °C (20-200 °C) | |||||||||
| Coefficient of thermal expansion 68-572 | 10.4 · 10-6 per °F (68-572 °F) | 18 · 10-6 per °C (20-300 °C) | |||||||||
| Specific heat capacity | 0.09 Btu/lb/°F at 68 °F | 377.1 J/kg at 20 °C | |||||||||
| Modulus of elasticity in tension | 15200 ksi | 104801 MPa | |||||||||
Fabrication properties
Fabrication properties provided by CDA | |||||||||||
| Technique | Suitability | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Soldering | Excellent | ||||||||||
| Brazing | Good | ||||||||||
| Oxyacetylene welding | Good | ||||||||||
| Gas shielded arc welding | Good | ||||||||||
| Coated metal arc welding | Good | ||||||||||
| Spot weld | Good | ||||||||||
| Seam weld | Good | ||||||||||
| Butt weld | Good | ||||||||||
| Capacity for being cold worked | Poor | ||||||||||
| Capacity for being hot formed | Excellent | ||||||||||
| Forgeability Rating | 95 | ||||||||||
| Machinability rating | 85 | ||||||||||
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. | |||||||||||
| Treatment | Minimum* | Maximum* | Value* | Time** | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stress relief | 0 | ||||||||||
| Solution treatment | 0 | ||||||||||
| Annealing | 932 | 1112 | |||||||||
| Hot treatment | 1202 | 1517 | |||||||||
Common fabrication processes
Forming and bending, machining, shearing
Common fabrication processes provided by CDA
