UNS C37000 (CW607N) Free-Cutting Muntz Metal
Copper Alloys
Property Overview
Density8.1g/cm³
Elastic Modulus100GPa
Tensile Strength380MPa
Yield Strength160MPa
Brinell Hardness90HB
Maximum Service Temperature120°C
Chemical Composition
N
CuZn38Pb1 ( CW607N ) Copper-zinc-lead alloy Chemical composition. Equivalents of CuZn38Pb1 ( CW607N ). Standards.1 Mechanical Properties. Hardness%
RES.
Residuals res. | | 0 to 0.4%
Mechanical
A - Min. elongation Lo = 100mm (%) (R410)
10
A - Min. elongation at fracture (%) (R380)
20
A - Min. elongation at fracture (%) (R410)
15
Elastic (Young's, Tensile) Modulus
100 GPa
R p0.2 0.2% proof strength (MPa) (R380)
160
R p0.2 0.2% proof strength (MPa) (R410)
250
Rm - Tensile strength (MPa) (R380)
380
Rm - Tensile strength (MPa) (R410)
410
Tensile Strength: Ultimate (UTS)
400 MPa
Tensile Strength: Yield (Proof)
160 MPa
Hardness
Brinell hardness (HB): (R380)
90
Brinell hardness (HB): (R410)
120
Thermal
Latent Heat of Fusion
170 J/g
Maximum Temperature: Mechanical
120 °C
Melting Completion (Liquidus)
900 °C
Melting Onset (Solidus)
890 °C
Specific Heat Capacity
380 J/kg-K
Thermal Conductivity
120 W/m-K
Thermal Diffusivity
39 mm 2 /s
Thermal Expansion
21 µm/m-K
Thermal Shock Resistance
13 points
Electrical
Electrical Conductivity: Equal Volume
27 % IACS
Electrical Conductivity: Equal Weight (Specific)
30 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
130 MJ/m 3
Resilience: Unit (Modulus of Resilience)
120 kJ/m 3
Stiffness to Weight: Axial
7.2 points
Stiffness to Weight: Bending
19 points
Strength to Weight: Axial
14 points
Strength to Weight: Bending
15 points
Environmental
Base Metal Price
23 % relative
Embodied Carbon
2.7 kg CO 2 /kg material
Embodied Energy
45 MJ/kg 19 x 10 3 BTU/lb
Embodied Water
320 L/kg 38 gal/lb
Registered Designations & Aliases
C37000CW607NCW607NCuZn38Pb1UNS C37000 (CW607N) Free-Cutting Muntz Metal
Standards
ASTM B124 ASTM B124: Standard Specification for Copper and Copper Alloy Forging Rod, Bar, and Shapes
ASTM B124 ASTM B124: Standard Specification for Copper and Copper Alloy Forging Rod, Bar, and Shapes ASTM B283: Standard Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)
ASTM B283 ASTM B283: Standard Specification for Copper and Copper-Alloy Die Forgings (Hot-Pressed)
EN 12164 EN 12164: 1998 Copper and copper alloys. Rod for free machining 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 12449 EN 12449: 1999 Copper and copper alloys. Seamless, round tubes for general purposes