CDA 865 Bronze Alloy

Equivalent Specification :

CDA ASTM ASARCON SAE AMS Federal Military
C86500 B505 – B505M J461 – J462 4860 QQ-C-390, C3
QQ-B-726, CLASS A
MIL-C-22229, COMP 7

Chemical Composition :

Cu%1 Pb% Sn% Zn% Fe% Ni%2 Al% Mn%
Chemical Composition according to ASTM B505/B505M-18

 

1In determining Cu min., Cu may be calculated as Cu + Ni.   2Ni value includes Co.
Note : Cu + Sum of Named Elements, 99.0% min. Single values represent maximums.
55.00 – 60.00 0.40 1.00 36.00 – 42.00 0.40 – 2.00 1.0 0.50 – 1.50 0.10 – 1.50

Machinability :

Alloy No. Machinability Rating Density (lb/cu in at 68° F)
C86500 26 0.301

Mechanical Properties :

Tensile Strength, min Yield Strength, at .5% Extension Under Load, min Elongation, in 2in. or 50mm min Brinell Hardness Remarks
Ksi MPa Ksi MPa % typical BHN
70 483 25 172 25 130 (3000 kg)

Physical Properties :

Physical Properties provided by CDA * Field Strength 16 kA/m
US Customary Metric
Melting Point – Liquidus 1616° F 880° C
Melting Point – Solidus 1583° F 862° C
Density 0.301 lb/in3 at 68° F 8.33 gm/cm3 at 20° C
Specific Gravity 8.33 8.33
Electrical Conductivity 22% IACS at 68° F 0.128 MegaSiemens/cm at 20° C
Thermal Conductivity 49.6 Btu · ft/(hr · ft2 · °F) at 68° F 85.8 W/m at 20° C
Coefficient of Thermal Expansion 11.3 · 10-6 per °F (68°-212° F) 19.5 · 10-6 per °C (20°-100° C)
Specific Heat Capacity 0.09 Btu/lb/°F at 68° F 377.1 J/kg at 293° C
Modulus of Elasticity in Tension 15000 ksi 103400 MPa
Magnetic Permeability* 1.09 1.09