C93700

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SPECIFICATION CROSS-REFERENCE CHART

Cast

The lead content in these alloys is between 7 percent and 30 percent. High-leaded tin bronzes are free cutting and retain favorable thermal conductivity and good lubricity due to the lead content. The high-leaded tin bronzes are ideal for bearing applications where there could be a loss of the lubrication boundary. These alloys perform excellent in unforgiving environments where foreign matter may be present, such as dirt and other foreign materials. The high-leaded alloys are able to envelope foreign matter due to their malleable nature and, in doing so, protect the wear surface of a mating part such as a shaft.

Info

Product Description: High-Leaded Tin Bronze
Solids: 1/2" to 10" OD
Tubes: 1" to 16" OD
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

Builders Hardware: brackets
Fasteners: washers for engines, nuts
Industrial: crank shafts, bearings, bearing plates, machine parts, bushings, applications requiring acid resistance to sulphite fluids, parts for steel mill maintenance, slide guides for steel mills, high speed, heavy load bearings, pumps, pressure tight castings, impellers, corrosion resistant castings, bushings for high speed and heavy pressure
Marine: large bearings for ships

Similar or Equivalent Specification

CDA ASTM ASARCON SAE AMS Federal Military Other Desc
C93700 B505
B144, 3A
1010 64
J461
J462
  QQ-C-390, E10 MIL-B-11553, COMP 23 BEARING BRONZE

Chemical Composition (according to ASTM B505/B505M-14)

Cu% Sn% Pb% Zn% Fe%1 Ni%2 Sb% P%3 S% Al% Si%
1Fe shall be .35% max., when used for steel-backed   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.
78.00-
82.00
9.00-
11.00
8.00-
11.00
 
0.80
 
0.70
 
0.50
 
0.50
 
0.10
 
0.08
 
0.005
 
0.005

Mechanical Properties (according to ASTM B505/B505M-14)

Tensile Strength (min) Yield Strength (at .5% extension under load min) Elongation (in 2in. or 50mm min, %) Brinell Hardness (min) Remarks
Ksi MPa Ksi MPa      
35 241 20 138 6  

Machinability

Alloy Rating Density
C93700 80 0.320

Physical Properties (provided by CDA)

  US Customary Metric
Melting Point - Liquidus 1705° F 929° C
Melting Point - Solidus 1403° F 762° C
Incipient Melting 600° F 316° C
Density 0.320 lb/in3 at 68° F 8.86 gm/cm3 at 20° C
Specific Gravity 8.86 8.86
Electrical Resistivity 102 ohms-cmil/ft at 68° F 16.95 microhm-cm at 20° C
Electrical Conductivity 10% IACS at 68° F 0.059 MegaSiemens/cm at 20° C
Thermal Conductivity 27.10 Btu · ft/(hr · ft2 · °F) at 68° F 46.9 W/m at 20° C
Coefficient of Thermal Expansion 10.3 · 10-6 per °F (68°-392° F) 17.8 · 10-6 per °C (20°-200° C)
Specific Heat Capacity 0.090 Btu/lb/°F at 68° F 377.1 J/kg at 293° C
Modulus of Elasticity in Tension 11000 ksi 75800 MPa
Magnetic Permeability 1.0 1.0

Fabrication Properties (provided by CDA)

Joining Technique Suitability
Soldering Good
Brazing Good
Oxyacetylene Welding Not Recommended
Gas Shielded Arc Welding Not Recommended
Coated Metal Arc Welding Not Recommended

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 None
Precipitation Value    
Precipitation Time    
Precipitation Medium None
Annealing Minimum    
Annealing Maximum    
Annealing Time  
Hot Works Minimum    
Hot Works Maximum    

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