Brass C360
Brass C360 – Free-Machining Brass: The Universal Machinability Reference Standard
Brass C360 is the definitive free-machining brass alloy and serves as the machinability reference standard (rating 100) against which all other metals are compared. Its composition of 61.5% copper, 35.5% zinc, and 3% lead produces short, brittle chips that prevent built-up edge on cutting tools, enabling very high production rates in screw machine operations at excellent surface finish quality.
Key Properties
- Machinability Rating: 100 — the industry reference standard
- Tensile Strength: 385 MPa
- Hardness: 120 HB
- Density: 8.50 g/cm³
- Composition: 61.5% Cu / 35.5% Zn / 3% Pb
- Standards: ASTM B16 / CDA 360
Common Applications
High-volume screw machine parts, pipe fittings, valves, couplings, nuts, inserts, and any precision-turned component where maximum throughput and excellent surface finish are required.
Material properties
| Material name | Brass C360 |
|---|---|
| Type | Brass & Bronze |
| Standard code | ASTM B16 / CDA 360 |
| Tensile strength (MPa) | 385 |
| Yield strength (MPa) | 310 |
| Fatigue strength (MPa) | 138 |
| Elongation (%) | 25 |
| Hardness (Brinell) | 120 |
| Density (g/cm³) | 8.5 |
| Electrical resistivity (µΩ·in) | 6.2 |
| Thermal conductivity (W/m·K) | 115 |
| Melting range (°C) | 885–900 |
| Weldability | Poor |
| Formability | Fair |
| Shear modulus | 37 |
| Industry code | brass_360 |