CuZn40Mn1Pb1
Copper Alloys
Property Overview
Density8.3g/cm³
Elastic ModulusUnknown
Tensile Strength390MPa
Yield Strength200MPa
Brinell Hardness110HB
Maximum Service TemperatureUnknown
Chemical Composition
PB
CuZn40Mn1Pb1 ( CW720R ) Complex copper-zinc alloy Chemical composition. Equivalents of CuZn40Mn1Pb1 ( CW720R ). Standards.1 Mechanical Properties. Hardness%
Mechanical
A - Min. elongation at fracture (%) (R390)
20
A - Min. elongation at fracture (%) (R440)
18
R p0.2 0.2% proof strength (MPa) (R390)
200
R p0.2 0.2% proof strength (MPa) (R440)
250
Rm - Tensile strength (MPa) (R390)
390
Rm - Tensile strength (MPa) (R440)
440
Hardness
Brinell hardness (HB): (R390)
110
Brinell hardness (HB): (R440)
120
Registered Designations & Aliases
CW720RCuZn40Mn1Pb1
Standards
EN 12164 EN 12164: 1998 Copper and copper alloys. Rod for free machining purposes
EN 12165 EN 12165: 1998 Copper and copper alloys. Wrought and unwrought forging stock
EN 12166 EN 12166: 1998 Copper and copper alloys. Wire for general purposes
EN 12167 EN 12167: 1998 Copper and copper alloys. Profiles and rectangular bar for general purposes
EN 12168 EN 12168: 1998 Copper and copper alloys. Hollow rod for free machining purposes
EN 12420 EN 12420: 1999 Copper and copper alloys. Forgings