C93200

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Cast

The lead content in high leaded tin bronze alloys is between 7.00% and 15.00%. These alloys are free cutting and retain favorable thermal conductivity and good lubricity due to the lead content. Alloy C93200, also termed 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.

Info

Product Description:. Leaded Tin Bronze
Solids: 1/2" to 13" O.D.
Tubes: 1" to 16" O.D.
Rectangles: Up to 20"
Standard Lengths: 144"
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: thrust washers, pumps, bushings, machine parts, main spindle bearings, machine tool bearings, bearings for cranes, trunion bearings, roll neck bearings, rolling mill bearings, linkage bushings for presses, fuel pump bushings, water pump bushings, diesel engine wrist pin bushings, forging press toggle lever bearings, hydraulic press stuffing box, hydraulic press main lining, pump impellers, general purpose bushings, fittings, pump fixtures, insert bearings, bearings

Similar or Equivalent Specification

CDA ASTM Asarcon SAE AMS Federal Military Other
C93200 B505
B505M
B144-3B
77 660
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%2 Ni%3 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.  3For continuous castings, P shall be 1.5%, max.
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
1.00-
4.00
 
0.20
 
0.15
 
1.00
 
0.005
 
0.08
 
0.35
 
0.005

Machinability

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

Mechanical Properties

Mechanical Properties according to ASTM B505/B505M-18
Tensile Strength, min Yield Strength, at .5% Extension Under Load, min Elongation, in 2 in. or 50 mm min Brinell Hardness Remarks
Ksi MPa Ksi MPa % typical BHN  
35 241 20 138 10 65 (500 kg)  

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 · ft/(hr · ft2 · °F) at 68° F 58.2 W/m at 20° C
Coefficient of Thermal Expansion 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 293° C
Modulus of Elasticity in Tension 14500 ksi 100000 MPa

Fabrication Properties

Fabrication Properties provided by CDA
Joining Technique Suitability
Soldering Excellent
Brazing Good
Oxyacetylene Welding Not Recommended
Gas Shielded Arc Welding Not Recommended
Coated Metal Arc Welding Not Recommended

Thermal Properties

Thermal Properties provided by CDA
Treatment Temp./Time - US Temp./Time - SI
Stress Temperature 500 260
Solution Minimum    
Solution Maximum    
Solution Time 0.0  
Solution Medium    
Precipitation Value    
Precipitation Time    
Precipitation Medium    
Annealing Minimum    
Annealing Maximum    
Annealing Time    
Hot Works Minimum    
Hot Works Maximum    

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