CDA 922 Leaded Tin Bronze Alloys

Specifications :

ASTM MILITARY
Centrifugal Cast ASTM B271 QQ-C-390
Continuous Cast ASTM B505 QQ-C-390
Sand Cast ASTM B548 QQ-C-390

Mechanical Properties :

Form Specification Tensile, min ksi (MPa) Yield, min ksi (MPa) Elongation in 2”, % min
Centrifugal Cast ASTM B271 40 (276) 18 (124) 20
Continuous Cast ASTM B505 44 (303) 22 (152) 18
Sand Cast ASTM B584 40 (276) 18 (124) 20

Compositions :

Commercial
UNS No. Copper Tin Lead Zinc Nickel incl. Cobalt Iron Phosphorus
C92200 86.0-88.0 5.0-6.0 1.5-2.5 3.0-5.5 .5-1 0.25 max 0.05 max
QQ-C-390
UNS No. Copper Tin Lead Zinc Nickel incl. Cobalt Iron Phosphorus
C92200 86.0-88.0 5.0-6.0 1.5-2.5 3.0-5.5 .5-1 0.25 max 0.05 max

Physical Properties :

Density  68o F 0.312 lb/in3
Melting Range 1518-1810o F
Casting Yield Medium
Drossing Low
Effect on Section Size High
Fluidity Medium
Gassing Medium
Machinability rating (C360 = 100) 42
Brazing Excellent
Soldering Excellent