EN CC761S (CuZn16Si4-C) Silicon Brass
Copper Alloys
Property Overview
Density8.3g/cm³
Elastic Modulus110GPa
Tensile Strength500MPa
Yield Strength340MPa
Brinell Hardness150HB
Maximum Service Temperature170°C
Chemical Composition
NI
0 to 1.0%
MN
0 to 0.2%
SI
3.0 to 5.0%
P
0 to 0.030%
S
CuZn16Si4-C ( CC761S ) Copper-zinc alloy Chemical composition. Equivalents of CuZn16Si4-C ( CC761S ). Standards.1 Mechanical Properties. Hardness%
CU
78 to 83%
AL
0 to 0.1%
PB
0 to 0.8%
SB
0 to 0.050%
SN
0 to 0.3%
ZN
8.9 to 19%
FE
0 to 0.6%
Mechanical
A - Min. elongation at fracture (%) (GM) or (GZ)
8
A - Min. elongation at fracture (%) (GS)
10
Elastic (Young's, Tensile) Modulus
110 GPa
Elongation at Break
8.7 %
Poisson's Ratio
0.33
R p0.2 0.2% proof strength (MPa) (GM) or (GZ)
300
R p0.2 0.2% proof strength (MPa) (GS)
230
Rm - Tensile strength (MPa) (GM) or (GZ)
500
Rm - Tensile strength (MPa) (GS)
400
Shear Modulus
42 GPa
Tensile Strength: Ultimate (UTS)
540 MPa
Tensile Strength: Yield (Proof)
340 MPa
Hardness
Brinell Hardness
150
Brinell hardness (HBW): (GM) or (GZ)
130
Brinell hardness (HBW): (GS)
100
Physical
Density
8.3 g/cm 3
Thermal
Latent Heat of Fusion
260 J/g
Maximum Temperature: Mechanical
170 °C
Melting Completion (Liquidus)
960 °C
Melting Onset (Solidus)
910 °C
Specific Heat Capacity
410 J/kg-K
Thermal Conductivity
27 W/m-K
Thermal Diffusivity
8.0 mm 2 /s
Thermal Expansion
18 µm/m-K
Thermal Shock Resistance
19 points
Electrical
Electrical Conductivity: Equal Volume
40 % IACS
Electrical Conductivity: Equal Weight (Specific)
43 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
41 MJ/m 3
Resilience: Unit (Modulus of Resilience)
530 kJ/m 3
Stiffness to Weight: Axial
7.4 points
Stiffness to Weight: Bending
19 points
Strength to Weight: Axial
18 points
Strength to Weight: Bending
18 points
Environmental
Base Metal Price
27 % relative
Embodied Carbon
2.7 kg CO 2 /kg material
Embodied Energy
45 MJ/kg
Embodied Energy
45 MJ/kg 19 x 10 3 BTU/lb
Embodied Water
300 L/kg
Embodied Water
300 L/kg 36 gal/lb
Registered Designations & Aliases
CC761SCuZn16Si4-CCuZn16Si4-CEN CC761S (CuZn16Si4-C) Silicon Brass
Standards
EN 1982 EN 1982: 2008 Copper and copper alloys. Ingots and castings
EN 1982 EN 1982: Copper and copper alloys - Ingots and castings