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C90500

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Continuous Cast • GreenAlloys™

Tin bronze alloys such as C90500 are typically found in gear and high-strength bushing and bearing applications where high strength, low speeds, and heavy loads are present. Other high-strength applications for these alloys are pump impellers, piston rings, steam fittings, and valve bodies. C905 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 and heavy loads.

C90500 SPEC SHEET CONCAST LINE CARD

C90500

Product Description: Tin Bronze
Solids: 1/2" to 10" 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

Building: heavy construction equipment
Electrical: connectors
Fasteners: nuts
Industrial: bearings, bushings, expansion bearings, finishing dies for wood pulp industry, gear blanks, gears, piston rings, pump bodies, pump impellers, seal rings, valve bodies, valves, worm gears
Plumbing: steam fittings, water conditioners

Similar or Equivalent Specification

CDA ASTM SAE AMS Federal Military Other
C90500 B505
B505M
B22
B22M
B143-1A		 62
J461
J462		 4845 QQ-C-390, D6
QQ-B-1005, Comp 16		 MIL-B-11553, Comp 16 Gun Metal

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, 99.7% min. Single values represent maximums.
86.00-
89.00		  
0.30		 9.00-
11.00		 1.00-
3.00		  
0.20		  
1.50		  
1.00		  
0.005		  
0.05		  
0.20		  
0.005

Machinability

Alloy Machinability Rating Density (lb/in3 at 68 °F)
C90500 30 0.315

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  
44 303 25 172 10 75

Physical Properties

Physical Properties provided by CDA
  US Customary Metric
Melting Point - Liquidus 1830 °F 999 °C
Melting Point - Solidus 1570 °F 854 °C
Density 0.315 lb/in3 at 68 °F 8.72 gm/cm3 at 20 °C
Specific Gravity 8.72 8.72
Electrical Conductivity 11% IACS at 68 °F 0.064 MegaSiemens/cm at 20 °C
Thermal Conductivity 43.2 Btu/sq ft/ft hr/°F at 68 °F 74.8 W/m at 20 °C
Coefficient of Thermal Expansion 68-572 11 · 10-6 per °F (68-572 °F) 19.8 · 10-6 per °C (20-300 °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
Magnetic Permeability* 1 1

Fabrication Properties

Fabrication Properties provided by CDA

*Since brazing is performed within the hot-short range, strain must be avoided during brazing and cooling.
Joining Technique Suitability
Soldering Excellent
Brazing Good
Oxyacetylene Welding Fair
Gas Shielded Arc Welding Fair
Coated Metal Arc Welding Fair
Machinability Rating 30

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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