C35300
High-Leaded Brass
High-leaded brass supplied as plate, sheet, and strip for machined flat parts. A long-standing choice for engraving stock and instrument work.
Tensile Strength
49–74 ksi
Yield Strength
17–60 ksi
Machinability
90 / 100
Density
0.306 lb/in³
Chemical Composition
| Element | Min % | Max % |
|---|---|---|
| Copper (Cu) | 60 | 63 |
| Zinc (Zn) | — | Remainder |
| Lead (Pb) | 1.5 | 2.5 |
| Iron (Fe) | — | 0.15 |
Physical Properties
| Density | 0.306 lb/cu in |
|---|---|
| Specific Gravity | 8.47 |
| Melting Point (Solidus) | 1630°F |
| Melting Point (Liquidus) | 1660°F |
| Electrical Conductivity | 26% IACS |
Mechanical Properties
| Tensile Strength | 49–74 ksi |
|---|---|
| Yield Strength | 17–60 ksi |
| Elongation | 7–52% |
| Hardness | 30–80 Rockwell B |
| Machinability Rating | 90 |
Thermal Properties
| Thermal Conductivity | 67 Btu/ft·hr·°F |
|---|---|
| Coefficient of Expansion | 11.3 × 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
- Gears and pinions
- Clock and instrument plates
- Screw machine products
- Engraving plates
- Wheels and pinions
- Hardware components
Applicable Specifications
- ASTM B121
- ASTM B453
- SAE J461
- SAE J463
Frequently Asked Questions
Common questions about C35300 High-Leaded Brass specifications, applications, and material properties.