C95300 / CDA 953 Aluminum Bronze Alloys

Specification :

CDA ASTM Asarcon SAE AMS Federal Military Other
C953 B505
B505M
68B
J461
J462
QQ-C-390, G7;
QQ-B-671, Class 2
MIL-B-16033, Class 2 Aluminum Bronze 9B

Chemical Composition :

Cu% Fe% Al%
Chemical Composition according to ASTM B505/B505M-18
Note: Cu + Sum of Named Elements, 99.0% min. Single values, unless otherwise noted, represent maximums.
86.00
min
0.80-
1.50
9.00-
11.00

Machinability :

Copper Alloy UNS No. Machinability Rating Density (lb/in3 at 68 °F)
C953 55 0.272

Mechanical Properties :

Mechanical Properties according to ASTM B505/B505M-18
Tensile Strength, min Yield Strength, at .5% Extension Under Load, min Elongation, in 2 in. or 50 mm min Brinell Hardness (3000 kg load) Remarks
ksi MPa ksi MPa % typical BHN
70 483 26 179 25 125

Physical Properties :

US Customary Metric
Physical Properties provided by CDA
*Field Strength 8 kA/m
Melting Point – Liquidus 1913 °F 1045 °C
Melting Point – Solidus 1904 °F 1040 °C
Density 0.272 lb/in3 at 68 °F 7.53 gm/cm3 at 20 °C
Specific Gravity 7.53 7.53
Electrical Conductivity 13% IACS at 68 °F 0.075 MegaSiemens/cm at 20 °C
Thermal Conductivity 36.3 Btu · ft/(hr · ft2·°F) at 68 °F 62.8 W/m at 20 °C
Coefficient of Thermal Expansion 68-572 9 · 10-6 per °F (68-572 °F) 15.5 · 10-6 per °C (20-200 °C)
Specific Heat Capacity 0.09 Btu/lb/°F at 68 °F 377.1 J/kg at 293 °C
Modulus of Elasticity in Tension 16000 ksi 110000 MPa
Magnetic Permeability* 1.07 1.07

Fabrication Properties :

Fabrication Properties provided by CDA
Joining Technique Suitability
Soldering Good
Brazing Good
Oxyacetylene Welding Not Recommended
Gas Shielded Arc Welding Excellent
Coated Metal Arc Welding Good

Thermal Properties :

Thermal Properties provided by CDA
Treatment Temp./Time – US Temp./Time – SI
Stress Relief 600 316
Solution Minimum 1585 863
Solution Maximum 1635 891
Solution Time 1
Solution Medium Water
Precipitation Value
Precipitation Time
Precipitation Medium
Annealing Minimum 1150 622
Annealing Maximum 1225 663
Annealing Time 1
Hot Treatment Minimum
Hot Treatment Maximum