C93700 High-Leaded Tin Bronze is also known as SAE 64 and 80-10-10 Bronze. The lead found in CDA 937 Tin Bronze acts as a lubricant and contributes to this alloys excellent machinability and good anti-friction properties. C93700 has reasonable corrosion resistance to seawater and brine and good overall wear resistance. C937 Bronze is available as centrifugal cast, continuous cast and sand cast bar. CDA 937 High-Leaded Tin Bronze is ideally suited for high speed, light duty applications, including crank shafts, washers, bushings, bearings, bearing plates and pump impellers.

Available in rounds & tube. Also cast to size.

Available Shapes for C93700 HIGH LEADED TIN BRONZE:

BAR  ::  TUBE  ::  CASTING

Specifications for C93700

ASTM
Rounds/tubes ASTM B505
sand cast ASTM B584
centrifugal ASTM B271
All Methods QQ-C390

Mechanical Properties for for C93700

tensile Yield Elongation
Centrifugal 30 min. 12 min. 15%
Continuous Cast 35 min. 20 min. 6%
sand cast 30 min 12 min. 15%

Compositions for C93700 High Leaded Tin Bronze

UNS No. Copper Tin Lead Zinc Nickel incl. Cobalt Iron Aluminum Antimony Sulfur Phosphorus Silicon
C93700 78.0-82.0 9.0-11.0 8.0-11.0 0.8 max 0.50 max 0.70 max 0.005 0.50 max 0.08 max 1.5 max
0.005 max

Physical Properties of C93700

Physical Properties View Metric Conversions Table
Melting Point – Liquidus°F
1705
Melting Point – Solidus°F
1403
Densitylb/cu in. at 68°F
0.32
Specific Gravity
8.86
Electrical Conductivity% IACS at 68°F
10
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F
27.1
Coefficient of Thermal Expansion 68-39210⁻⁶ per °F (68 – 392°F)
10.3
Specific Heat CapacityBtu/ lb /°F at 68°F
0.09
Modulus of Elasticity in Tensionksi
11000
Incipient Melting°F
600
Magnetic Permeability
1

Applications for C93700 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
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