Bronze Bars C93200 (SAE 660) are high quality smooth machine finish stock for general utility bearings and bushings and which are highly resistant to impact, wear and corrosion. It is a general purpose bearing alloy possessing good anti-friction properties, ample strength and hardness, adequate ductility and excellent machinability. It is used as bearings, bushings, light duty gears and sprockets, impellers, wear strips, plates, automotive fittings and washers. It is used extensively in pumps, cylinders, machine tools, earth moving machinery and a myriad of general purpose applications.
Sizes listed by Inner Diameter x Outer Diameter
Sizes listed by thickness x width
Sizes listed by outside diameter
CDA | ASTM | Asarcon | SAE | AMS | Federal | Military | Other |
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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 |
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.
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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 |
Copper Alloy UNS No. | Machinability Rating | Density (lb/cu in at 68° F) |
---|---|---|
C93200 | 70 | 0.322 |
Mechanical Properties according to ASTM B505/B505M-18
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Tensile Strength, min | Yield Strength, at .5% Extension Under Load, min | Elongation, in 2 in. or 50 mm min | Brinell Hardness | Remarks | |||||||
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Ksi | MPa | Ksi | MPa | % | typical BHN | ||||||
35 | 241 | 20 | 138 | 10 | 65 (500 kg) |
Physical Properties provided by CDA
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US Customary | Metric | ||||||||||
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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 provided by CDA
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Joining Technique | Suitability | ||||||||||
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Soldering | Excellent | ||||||||||
Brazing | Good | ||||||||||
Oxyacetylene Welding | Not Recommended | ||||||||||
Gas Shielded Arc Welding | Not Recommended | ||||||||||
Coated Metal Arc Welding | Not Recommended |
Cast bronze alloys are listed chronologically by their nominal dimensions. Any continuously cast bronze tube is guaranteed “to finish to” its nominal size. To accomplish this, “clean-up” material is added to both the ID (inside diameter) and OD (outside diameter).
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