UNS C68400 Silicon-Manganese Brass
Brass
Property Overview
Density7.9g/cm³
Elastic Modulus110GPa
Tensile Strength540MPa
Yield Strength310MPa
Brinell Hardness150HB
Maximum Service Temperature130°C
Chemical Composition
NI
0 to 0.5%
MN
0.2 to 1.5%
SI
1.5 to 2.5%
P
0.030 to 0.3%
CU
59 to 64%
AL
0 to 0.5%
B
0.0010 to 0.030%
PB
0 to 0.090%
RES.
Residuals res. | | 0 to 0.5%
RESIDUALS RES.
0 to 0.5%
SN
0 to 0.5%
ZN
28.6 to 39.3%
FE
0 to 1.0%
Mechanical
Elastic (Young's, Tensile) Modulus
110 GPa
Elongation at Break
18 %
Poisson's Ratio
0.31
Shear Modulus
41 GPa
Shear Strength
330 MPa
Tensile Strength: Ultimate (UTS)
540 MPa
Tensile Strength: Yield (Proof)
310 MPa
Hardness
Brinell Hardness
150
Physical
Density
7.9 g/cm 3
Thermal
Latent Heat of Fusion
210 J/g
Maximum Temperature: Mechanical
130 °C
Melting Completion (Liquidus)
840 °C
Melting Onset (Solidus)
820 °C
Specific Heat Capacity
400 J/kg-K
Thermal Conductivity
66 W/m-K
Thermal Diffusivity
21 mm 2 /s
Thermal Expansion
20 µm/m-K
Thermal Shock Resistance
18 points
Electrical
Electrical Conductivity: Equal Volume
87 % IACS
Electrical Conductivity: Equal Weight (Specific)
99 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
81 MJ/m 3
Resilience: Unit (Modulus of Resilience)
460 kJ/m 3
Stiffness to Weight: Axial
7.5 points
Stiffness to Weight: Bending
20 points
Strength to Weight: Axial
19 points
Strength to Weight: Bending
19 points
Environmental
Base Metal Price
23 % relative
Embodied Carbon
2.7 kg CO 2 /kg material
Embodied Energy
47 MJ/kg
Embodied Energy
47 MJ/kg 20 x 10 3 BTU/lb
Embodied Water
320 L/kg
Embodied Water
320 L/kg 38 gal/lb
Registered Designations & Aliases
C68400UNS C68400 Silicon-Manganese Brass