EnviB ECO Brasses: CuZn21SiP, CW724R & C69300 – Sustainable, Lead‑Free Solutions
Lebronze alloys is worldwide leader in the design, customization, and production of copper & nickel alloys. Lebronze alloys (LBA) is actively involved in proposing ethical and ecologically sustainable solutions.
In brass applications, lead has been widely used to improve machining operations. Nowadays, there is a growing demand for alternatives to leaded brass all over the world.
To answer this, LBA developed EnviB, a new range of machinable brasses with high environmental performance. EnviB alloys fulfill rules and regulations like RoHs, REACH, California and Federal Drinking Water Act, UBA list, CPSIA and Öko-Tex.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 23.0 °C | 8.3 g/cm³ |
Mechanical
| Property | Temperature | Value |
|---|---|---|
Elastic modulus | 23.0 °C | 100 GPa |
Elongation | 23.0 °C | 10 - 15 % |
Hardness, Brinell | 23.0 °C | 149 - 212 [-] |
Hardness, Rockwell C | 23.0 °C | 0 - 18 [-] |
Hardness, Vickers | 23.0 °C | 150 - 220 [-] |
Tensile strength | 23.0 °C | 600 - 750 MPa |
Yield strength | 23.0 °C | 300 - 670 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 23.0 °C | 2E-5 1/K | for 20-200°C |
Thermal conductivity | 23.0 °C | 35 W/(m·K) |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical conductivity | 23.0 °C | 5.00E+6 S/m |
Specific Electrical conductivity | 8 % IACS |
Chemical properties
| Property | Value | Comment |
|---|---|---|
Lead | 0.09 % | max. |
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- EnviB ECO Brasses: CuZn21SiP, CW724R & C69300 – Sustainable, Lead‑Free Solutions