C46400
Naval Brass
Excellent corrosion resistance for marine applications. The tin addition provides dezincification resistance in seawater.
Tensile Strength
55–88 ksi
Yield Strength
25–66 ksi
Machinability
30 / 100
Density
0.304 lb/in³
Chemical Composition
| Element | Min % | Max % |
|---|---|---|
| Copper (Cu) | 59 | 62 |
| Tin (Sn) | 0.5 | 1 |
| Zinc (Zn) | — | Remainder |
| Lead (Pb) | — | 0.2 |
| Iron (Fe) | — | 0.1 |
Physical Properties
| Density | 0.304 lb/cu in |
|---|---|
| Specific Gravity | 8.41 |
| Melting Point (Solidus) | 1630°F |
| Melting Point (Liquidus) | 1650°F |
| Electrical Conductivity | 26% IACS |
Mechanical Properties
| Tensile Strength | 55–88 ksi |
|---|---|
| Yield Strength | 25–66 ksi |
| Elongation | 15–50% |
| Hardness | 30–80 Rockwell B |
| Machinability Rating | 30 |
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
- Propeller shafts
- Valve stems
- Condenser plates
- Structural applications
- Welding rod
- Aircraft turnbuckles
Applicable Specifications
- ASTM B21
- ASTM B124
- ASTM B283
- SAE J461
- SAE J463
Frequently Asked Questions
C46400 Naval Brass is commonly used for marine hardware, propeller shafts, valve stems, and condenser plates, structural applications. Excellent corrosion resistance for marine applications. The tin addition provides dezincification resistance in seawater.
C46400 has a machinability rating of 30 (on a scale where free-cutting brass C36000 = 100). This indicates moderate machinability, requiring appropriate tooling and cutting parameters.
C46400 has a tensile strength range of 55–88 ksi. This moderate strength is suitable for general industrial applications.
Yes, C46400 offers excellent corrosion resistance. It performs well in various industrial environments.
C46400 is a wrought alloy. It is available as bar stock, rod, plate, sheet, and tube.