UNS C92200 (CB498K) Navy-M Leaded Bronze
Copper Alloys
Property Overview
Density8.7g/cm³
Elastic Modulus110GPa
Tensile Strength220MPa
Yield Strength140MPa
Brinell Hardness70HB
Maximum Service Temperature170°C
Chemical Composition
NI
0 to 1.0%
SI
0 to 0.0050%
P
0 to 1.5%
S
0 to 0.050%
CU
86 to 90%
AL
0 to 0.0050%
B
CuSn6Zn4Pb2-B ( CB498K ) Copper-tin-lead alloy Chemical composition. Equivalents of CuSn6Zn4Pb2-B ( CB498K ). Standards.1 Mechanical Properties. Hardness%
PB
1.0 to 2.0%
RES.
Residuals res. | | 0 to 0.7%
RESIDUALS RES.
0 to 0.7%
SB
0 to 0.25%
SN
5.5 to 6.5%
ZN
3.0 to 5.0%
FE
0 to 0.25%
Mechanical
A - Min. elongation at fracture (%) (GM) or (GZ) or (GC)
12
A - Min. elongation at fracture (%) (GS)
15
Compressive (Crushing) Strength
180 MPa
Elastic (Young's, Tensile) Modulus
110 GPa
Elongation at Break
25 %
Fatigue Strength
76 MPa
Poisson's Ratio
0.34
R p0.2 0.2% proof strength (MPa) (GS) or (GM)
110
R p0.2 0.2% proof strength (MPa) (GZ) or (GC)
110
Rm - Tensile strength (MPa) (GS) or (GM)
220
Rm - Tensile strength (MPa) (GZ) or (GC)
240
Shear Modulus
41 GPa
Tensile Strength: Ultimate (UTS)
280 MPa
Tensile Strength: Yield (Proof)
140 MPa
Hardness
Brinell hardness (HBW): (GM) or (GZ) or (GC)
70
Brinell hardness (HBW): (GS)
65
Rockwell B Hardness
65
Physical
Density
8.7 g/cm 3
Thermal
Latent Heat of Fusion
190 J/g
Maximum Temperature: Mechanical
170 °C
Melting Completion (Liquidus)
990 °C
Melting Onset (Solidus)
830 °C
Solidification (Pattern Maker's) Shrinkage
1.6 %
Specific Heat Capacity
370 J/kg-K
Thermal Conductivity
70 W/m-K
Thermal Diffusivity
21 mm 2 /s
Thermal Expansion
19 µm/m-K
Thermal Shock Resistance
9.9 points
Electrical
Electrical Conductivity: Equal Volume
14 % IACS
Electrical Conductivity: Equal Weight (Specific)
14 % IACS
Other
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: Ultimate (Unit Rupture Work)
58 MJ/m 3
Resilience: Unit (Modulus of Resilience)
87 kJ/m 3
Stiffness to Weight: Axial
6.9 points
Stiffness to Weight: Bending
18 points
Strength to Weight: Axial
8.9 points
Strength to Weight: Bending
11 points
Environmental
Base Metal Price
32 % relative
Embodied Carbon
3.2 kg CO 2 /kg material
Embodied Energy
52 MJ/kg
Embodied Energy
52 MJ/kg 22 x 10 3 BTU/lb
Embodied Water
360 L/kg
Embodied Water
360 L/kg 43 gal/lb
Registered Designations & Aliases
C92200CB498KCB498KCuSn6Zn4Pb2-BUNS C92200 (CB498K) Navy-M Leaded Bronze
Standards
ASTM B271 ASTM B271: Standard Specification for Copper-Base Alloy Centrifugal Castings
ASTM B271 ASTM B271: Standard Specification for Copper-Base Alloy Centrifugal Castings ASTM B505: Standard Specification for Copper Alloy Continuous Castings Copper: Its Trade, Manufacture, Use, and Environmental Status, Gunter Joseph, 2001 Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993
ASTM B505 ASTM B505: Standard Specification for Copper Alloy Continuous Castings
EN 1982 EN 1982: 2008 Copper and copper alloys. Ingots and castings