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C93200

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Continuous Cast

Leaded tin bronze alloys are free cutting and retain favorable thermal conductivity and good lubricity due to the presence of lead. Alloy C93200, also termed C932, Bearing Bronze, SAE 660, SAE 660 Bronze, and SAE 660 Bearing Bronze, is considered this family’s workhorse alloy and is widely used in many bearing applications. MORE»

C93200 SPEC SHEET C93200 SIZE SCHEDULE WEIGHT CALCULATOR STANDARD PRODUCTS

C93200

Product Description: Leaded Tin Bronze
Solids: 1/2" to 13" O.D.
Tubes: 1" to 16" O.D.
Rectangles: Up to 20"
Standard Lengths: 105"
Shape/Form: semi-finished, mill stock or near-net shapes, anode, bar stock, billet/bloom, squares, hex, plate, profile or structural shape, flats/rectangular bar

Typical Uses

Automotive: automotive fittings
Fasteners: washers
Industrial: bushings, bearings, bearings for cranes, diesel engine wrist pin bushings, forging press toggle lever bearings, insert bearings, fittings, fuel pump bushings, general purpose bushings, hydraulic press main lining, hydraulic press stuffing box, linkage bushings for presses, machine parts, machine tool bearings, main spindle bearings, pump fixtures, pump impellers, pumps, roll neck bearings, rolling mill bearings, thrust washers, trunion bearings, water pump bushings

Similar or Equivalent Specification

CDA ASTM SAE AMS Federal Military Other
C93200 B505
B505M		 J461
J462		   QQ-C-390, E7;
QQ-B-1005, Comp 12		 MIL-B-11553, Comp 12 Bearing Bronze

Chemical Composition

Cu%1 Pb% Sn% Zn% Fe% P% Ni%1,2 Al% S% Sb% Si%
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.
81.00-
85.00		 6.00-
8.00		 6.30-
7.50		 2.00-
4.00		  
0.20		  
1.50		  
1.00		  
0.005		  
0.08		  
0.35		  
0.005

Machinability

Copper Alloy UNS No. Machinability Rating Density (lb/in3 at 68 °F)
C93200 70 0.322

Mechanical Properties

Mechanical Properties according to ASTM B505/B505M-18
Tensile Strength, min Yield Strength, at 0.5% Extension Under Load, min Elongation, in 2 in. or 50 mm min Brinell Hardness (500 kg load) Remarks
ksi MPa ksi MPa % typical BHN  
35 241 20 138 10 65  

Physical Properties

Physical Properties provided by CDA
  US Customary Metric
Melting Point - Liquidus 1790 °F 977 °C
Melting Point - Solidus 1570 °F 854 °C
Density 0.322 lb/in3 at 68 °F 8.91 gm/cm3 at 20 °C
Specific Gravity 8.91 8.91
Electrical Conductivity 12% IACS at 68 °F 0.07 MegaSiemens/cm at 20 °C
Thermal Conductivity 33.6 Btu/sq ft/ft hr/°F at 68 °F 58.2 W/m at 20 °C
Coefficient of Thermal Expansion 68-212 10 · 10-6 per °F (68-212 °F) 17.3 · 10-6 per °C (20-100 °C)
Specific Heat Capacity 0.09 Btu/lb/°F at 68 °F 377.1 J/kg at 20 °C
Modulus of Elasticity in Tension 14500 ksi 100000 MPa

Fabrication Properties

Fabrication Properties provided by CDA

*Since brazing is performed within the hot-short range, strain must be avoided during brazing and cooling.
Technique Suitability
Soldering Excellent
Brazing* Good
Oxyacetylene Welding Not Recommended
Gas Shielded Arc Welding Not Recommended
Coated Metal Arc Welding Not Recommended
Machinability Rating 70

Thermal Properties

Thermal Properties provided by CDA

*Temperature is measured in Fahrenheit.   **For Stress Relief, Solution Treatment and Annealing - Time is measured in hours/inch of thickness. For Precipitation Heat Treatment - Time is measured in hours.
Treatment Value* Time**
Stress Relief 500  
Solution Treatment   0

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