CuZn31Si1
Copper Alloys
Property Overview
Density8.4g/cm³
Elastic ModulusUnknown
Tensile Strength460MPa
Yield Strength250MPa
Brinell Hardness140HB
Maximum Service TemperatureUnknown
Chemical Composition
SI
CuZn31Si1 ( CW708R ) Complex copper-zinc alloy Chemical composition. Equivalents of CuZn31Si1 ( CW708R ). Standards.1 Mechanical Properties. Hardness%
Mechanical
A - Min. elongation at fracture (%) (R460)
22
A - Min. elongation at fracture (%) (R530)
12
R p0.2 0.2% proof strength (MPa) (R460)
250
R p0.2 0.2% proof strength (MPa) (R530)
330
Rm - Tensile strength (MPa) (R460)
460
Rm - Tensile strength (MPa) (R530)
530
Hardness
Brinell hardness (HB): (H115)
115 - 145
Brinell hardness (HB): (H140)
140
Registered Designations & Aliases
CW708RCuZn31Si1
Standards
EN 12163 EN 12163: 1998 Copper and copper alloys. Rod for general purposes
EN 12449 EN 12449: 1999 Copper and copper alloys. Seamless, round tubes for general purposes