C93200 High-Leaded Tin Bronze, also known as SAE 660 Bronze, is the most widely used bearing bronze alloy. The lead found in CDA 932 Tin Bronze contributes to this alloys excellent machinability and good anti-friction properties. C93200 has reasonable corrosion resistance to seawater and brine. C932 Bronze is available as centrifugal cast, continuous cast and sand cast. CDA 932 High-Leaded Tin Bronze is ideally suited for high speed, light duty applications, including washers, bushings, bearings, fittings, pump impellers and fixtures.

Marmetal stocks C93200 High Leaded Tin Bronze in bar and cast hollow tube forms.

Specifications for C93200

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

Mechanical Properties for for C93200

Form Specification Tensile, min ksi (MPa) Yield, min ksi (MPa)
Elongation in 2”, % min
Centrifugal Cast ASTM B271 30 (207) 14 (97) 15
Continuous Cast ASTM B505 35 (241) 20 (138) 10
Sand Cast ASTM B584 30 (207) 14 (97) 15

Compositions for C93200 High Leaded Tin Bronze

UNS No. Copper Tin Lead Zinc Nickel incl. Cobalt Iron Aluminum Antimony Sulfur Phosphorus Silicon
C93200 81.0-85.0 6.3-7.5 6.0-8.0 2.0-4.0 1.0 max 0.20 max 0.005 0.35 max 0.08 max 1.5
0.005 max

Physical Properties for C93200 High Leaded Tin Bronze

Melting Point – Liquidus°F 1790
Melting Point – Solidus°F 1570
Densitylb/cu in. at 68°F 0.322
Specific Gravity 8.91
Electrical Conductivity% IACS at 68°F 12
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 33.6
Coefficient of Thermal Expansion 68-21210⁻⁶ per °F (68 – 212°F) 10
Specific Heat CapacityBtu/ lb /°F at 68°F 0.09
Modulus of Elasticity in Tensionksi 14500

Applications for C93200 High Leaded Tin Bronze

* Bushings
* Bearings
* Wearplates
* Impellers
* Pump Parts
* Marine Products
* Valves
* Rolling Mill Bearings
* Hydraulic Press Main Liners
* Hydraulic Press Stuffing Box
* Thrust Washers
* TrunionBearings