UNS C44500 (CW707R) Admiralty Brass
Other
Property Overview
Density8.3g/cm³
Elastic Modulus110GPa
Tensile Strength340MPa
Yield Strength120MPa
Brinell HardnessUnknown
Maximum Service Temperature140°C
Chemical Composition
P
0.020 to 0.1%
CU
70 to 73%
AS
CuZn30As ( CW707R ) Cupper alloy Chemical composition. Equivalents of CuZn30As ( CW707R ). Standards.1 Mechanical Properties. Hardness%
PB
0 to 0.070%
RES.
Residuals res. | | 0 to 0.4%
RESIDUALS RES.
0 to 0.4%
SN
0.9 to 1.2%
ZN
25.2 to 29.1%
FE
0 to 0.060%
Mechanical
A - Min. elongation at fracture (%) (R340)
45
Elastic (Young's, Tensile) Modulus
110 GPa
Poisson's Ratio
0.32
R p0.2 0.2% proof strength (MPa) (R340)
130
Rm - Tensile strength (MPa) (R340)
340
Shear Modulus
41 GPa
Tensile Strength: Ultimate (UTS)
350 MPa
Tensile Strength: Yield (Proof)
120 MPa
Hardness
Vickers hardness ( HV): (H075) (R340)
75 - 105
Physical
Density
8.3 g/cm 3
Thermal
Latent Heat of Fusion
180 J/g
Maximum Temperature: Mechanical
140 °C
Melting Completion (Liquidus)
940 °C
Melting Onset (Solidus)
900 °C
Specific Heat Capacity
380 J/kg-K
Thermal Conductivity
110 W/m-K
Thermal Diffusivity
35 mm 2 /s
Thermal Expansion
20 µm/m-K
Thermal Shock Resistance
12 points
Electrical
Electrical Conductivity: Equal Volume
25 % IACS
Electrical Conductivity: Equal Weight (Specific)
27 % IACS
Other
GC
Continuous casting
GM
Permanent mould casting
GP
Pressure die casting
GS
Sand casting
GZ
Centrifugal casting
H
Material condition designated by the minimum value of hardness requirement for the product with mandatory hardness requirements
R
Material condition designated by the minimum value of tensile strength requirement for the product with mandatory tensile strength and elongation requirements
Calculated
Resilience: Unit (Modulus of Resilience)
65 kJ/m 3
Stiffness to Weight: Axial
7.2 points
Stiffness to Weight: Bending
19 points
Strength to Weight: Axial
12 points
Strength to Weight: Bending
13 points
Environmental
Base Metal Price
26 % relative
Embodied Carbon
2.7 kg CO 2 /kg material
Embodied Energy
46 MJ/kg
Embodied Energy
46 MJ/kg 20 x 10 3 BTU/lb
Embodied Water
330 L/kg
Embodied Water
330 L/kg 39 gal/lb
Registered Designations & Aliases
C44500CW707RCW707RCuZn30AsUNS C44500 (CW707R) Admiralty Brass
Standards
ASTM B111 ASTM B111: Standard Specification for Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock
EN 12451 EN 12451: 1999 Copper and copper alloys. Seamless, round tubes for heat exchangers