C48200
Naval Brass, Medium Leaded
Naval brass with a lead addition for improved machinability. The tin content gives dezincification resistance in seawater service.
Tensile Strength
56–75 ksi
Yield Strength
25–53 ksi
Machinability
50 / 100
Density
0.305 lb/in³
Chemical Composition
| Element | Min % | Max % |
|---|---|---|
| Copper (Cu) | 59 | 62 |
| Zinc (Zn) | — | Remainder |
| Tin (Sn) | 0.5 | 1 |
| Lead (Pb) | 0.4 | 1 |
| Iron (Fe) | — | 0.1 |
Physical Properties
| Density | 0.305 lb/cu in |
|---|---|
| Specific Gravity | 8.44 |
| Melting Point (Solidus) | 1630°F |
| Melting Point (Liquidus) | 1650°F |
| Electrical Conductivity | 26% IACS |
Mechanical Properties
| Tensile Strength | 56–75 ksi |
|---|---|
| Yield Strength | 25–53 ksi |
| Elongation | 15–43% |
| Hardness | 55–80 Rockwell B |
| Machinability Rating | 50 |
Thermal Properties
| Thermal Conductivity | 67 Btu/ft·hr·°F |
|---|---|
| Coefficient of Expansion | 11.8 × 10⁻⁶ /°F |
| Specific Heat | 0.09 Btu/lb·°F |
Fabrication Properties
Soldering
Brazing
Oxyacetylene Welding
Gas Shielded Arc
Coated Metal Arc
Cold Working
Hot Forming
Typical Applications
- Marine hardware
- Valve stems
- Screw machine products
- Fittings and fasteners
- Condenser plates
- Pump shafts
Applicable Specifications
- ASTM B21
- SAE J461
- SAE J463
Frequently Asked Questions
Common questions about C48200 Naval Brass, Medium Leaded specifications, applications, and material properties.