Material
Brass C280 (Muntz Metal, CW509L)
Brass C280 (Muntz metal) is a 60/40 copper-zinc brass with higher strength than 70/30 brasses and excellent hot-forming behavior, suited to hot-forged parts, condenser plates, and large fasteners.
Manufacturing processes
CNC
About
C280 (Muntz metal, 60/40 brass, CuZn40, CW509L) is about 59–63% copper and 37–41% zinc. Its alpha-beta structure gives higher strength than the 70/30 brasses and excellent hot forming, but limited cold forming and susceptibility to dezincification.
Conductivity is about 28% IACS and machinability is about 40% of free-cutting brass.
Brass C280 is commonly used for hot-forged parts, condenser tubes and plates, and large nuts and bolts.
Technical Details
- Accuracy
- ±0.2% (lower limit of ±0.13 mm)
- Density
- 8 g/cm³
- Min. wall thickness
- -
Technical Properties
- Tensile strength
- 330 - 610 MPa
- Tensile elongation
- 10 - 45%
- Embossing
- min. 0.3 mm
- Engraving
- min. 0.3 mm
- Warping risk
- N/A