BlueBrass® 42e
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MAB42E is a RoHS comliant, lead-free copper alloy with good machinability, high strength, and excellent ductility. Lead content is limited in order to comply with a growing range of legislative and regulatory guidelines. MAB42E is targeted for electronic applications, however the alloy is recommended for any machined brass part requiring lead-free product.
Mechanical Properties
Round Rod
| TEMPER NAME | TEMPER CODE | TENSILE STRENGTH | YIELD STRENGTH | ELONGATION | MILL LIMITS |
| range, ksi (MPa) |
range, ksi (MPa) |
range, % | |||
| Per client specification, or as needed to replace leaded or other alloy | 65 (450) - 109 (750) | 29 (200) - 100 (690) | 35 - 7 | 0.0394 - .3150" (1 - 8mm) |
|
Round Wire
| TEMPER NAME | TEMPER CODE | TENSILE STRENGTH | YIELD STRENGTH | ELONGATION | MILL LIMITS |
| min, ksi (MPa) | min, ksi (MPa) @ 0.2% |
min, % | |||
| Per client specification, or as needed to replace leaded or other alloy | 65 (450) - 109 (750) | 29 (200) - 100 (690) | 35 - 7 | 0.0100 - .2362" (.25 - 6mm) |
|
Physical Properties
| Melting Point (Liquidus) | 1650°F | 900°C |
| Annealing Range (min - max) | 900 - 1075 °F | 480 - 580 °C |
| Density | 0.306 lb/cu in | 8.40 gm/cu cm |
| Electrical Resistivity (Annealed) | 41.5 Ω·cir-mil/ft @ 68 °F | 6.9 µΩ·cm @ 20 °C |
| Electrical Conductivity (Annealed) | 25% IACS @ 68°F | 0.145 MS/cm @ 20°C |
| Thermal Conductivity | 65 Btu/sq ft/ft·hr/°F @ 68 °F | 113 W/m·K @ 20 °C |
| Coefficient of Thermal Expansion | 0.0000111°F (68-572°F) | 0.0000200°C (20-300°C) |
| Modulus of Elasticity (Tension) | 15,500 ksi | 105,000 MPa |
For a full size version of product specifications, including chemical composition in both US and Metric units, please download the PDF.