C91100

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SPECIFICATION CROSS-REFERENCE CHART

Cast

Tin bronze alloys, such as C91100, are typically found in gear, high-strength bushing and bearing applications where low speeds and heavy loads are present. Other high-strength applications for these alloys include pump impellers, piston rings, steam fittings and valve bodies. C911 tin bronze castings are utilized in movable bridge components, turntables for bridges and other structures for fixed and expansion bearings with slow or intermittent movement with heavy loads.

Info

Product Description: High Tin Bronze
Solids: 1" to 6" O.D.
Tubes: 1" to 6" O.D.
Rectangles: Up to 10"
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

Electrical: hollow conductors
Industrial: bearings, bushings, piston rings

Similar or Equivalent Specification

CDA ASTM SAE AMS Federal Military Other
C91100 B22
B22M
         

Chemical Composition

Cu%1 Pb% Sn% Zn% Fe% P%2 Ni%3 Al% S% Sb% Si%
Chemical Composition according to ASTM B22/B22M-17

1In determining Cu min., Cu may be calculated as Cu + Ni.   2For continuous castings, P shall be 1.5%, max.   3Ni value includes Co.
Note: Cu + Sum of Named Elements, 99.4% min. Single values represent maximums.
82.00-
85.00
 
0.25
15.00-
17.00
 
0.25
 
0.25
 
1.00
 
0.50
 
0.005
 
0.05
 
0.20
 
0.005

Machinability

Copper Alloy UNS No. Machinability Rating Density (lb/in3 at 68 °F)
C91100 10 0.318

Mechanical Properties

Tensile Strength, min Yield Strength, at 0.5% Extension Under Load, min Elongation, in 2 in. or 50 mm min Brinell Hardness (3000 kg load) Remarks
ksi MPa ksi MPa % typical BHN  
          135

Physical Properties

Physical Properties provided by CDA
  US Customary Metric
Melting Point - Liquidus 1742 °F 950 °C
Melting Point - Solidus 1505 °F 818 °C
Electrical Conductivity 8% IACS at 68 °F 0.049 MegaSiemens/cm at 20 °C
Specific Heat Capacity 0.09 Btu/lb/°F at 68 °F 377.1 J/kg at 20 °C
Modulus of Elasticity in Tension 15000 ksi 103400 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 Fair
Gas Shielded Arc Welding Fair
Coated Metal Arc Welding Fair
Machinability Rating 10

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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