Copper C36000 Free-Cutting Brass vs High-leaded brass C34200
Property comparison of Copper C36000 Free-Cutting Brass and High-leaded brass C34200, both copper alloy.
| Property | Copper C36000 Free-Cutting Brass | High-leaded brass C34200 | Difference |
|---|---|---|---|
| Yield strength | 124 MPa | 117 MPa | -6% |
| Tensile strength | 338 MPa | 338 MPa | 0% |
| Elongation | 53 % | 52 % | -2% |
| Elastic modulus | 117,000 MPa | 105,000 MPa | -10% |
| Shear modulus | 44,000 MPa | 40,000 MPa | -9% |
| Poisson ratio | 0.34 | 0.32 | -6% |
| Density | 8,490 kg/m³ | 8,500 kg/m³ | 0% |
| Thermal conductivity | 115 W/m·K | 115 W/m·K | 0% |
| Specific heat | 385 J/kg·K | 385 J/kg·K | 0% |
| Coefficient of thermal expansion | 0.000021 1/K | 0.00002 1/K | 0% |
| Melting point | 885 °C | 885 °C | 0% |
Difference is High-leaded brass C34200 relative to Copper C36000 Free-Cutting Brass. Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- grade
- C36000
- standard
- ASTM
- grade
- —
- standard
- ANSI
About brass copper alloys
Brass is the copper-zinc alloy family. C26000 (cartridge brass, 70/30) is the standard for deep drawing, ammunition cases, and decorative work. Higher-zinc brasses such as C36000 (free-cutting) are the standard for screw-machine work. Lead-free brass is increasingly required for potable-water service.
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