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C90300 (SAE 620) Bronze Bars

 
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C90300 is a “GREEN” non-leaded alloy
Tin Bronze – Navy G QQC-390B Type II and Type III
CDA 903 SAE 620 88-8-0-4 ASTM B271

Solid bars are stocked 13" increments and 105" lengths, and are available in other lengths and nonstandard sizes. Consider bars for use when you need special bearings, bearings for prototypes, or for emergency repairs.

Centrifugal cast large diameter cored bars are also available in 13" lengths as well as made to order sizes and lengths.

Typical Properties: (Not to be used for specification purposes.)
Copper: 86.00 – 89.00%
Tin: 7.50 – 9.00%
Lead: 0.30% max.
Zinc: 3.00 – 5.00%

Physical Properties: Centrifugal Cast
Tensile Strength PSI: 40,000 min
Yield Strength PSI: 18,000 min.
Elongation: 20% min.
Brinell Hardness (500 kg load): 70 typical
Machinability Rating: 30
Minimum Operating Temperature: -450°F
Maximum Operating Temperature: 550°F

C90300 is used for bearings, seal rings, gears, piston rings, pump impellers, steam fittings, and valve components. C90300 has good wear resistance but should be used with hardened steel shafts (300-400 HB). Due to the lack of lead, this material requires constant lubrication, generally grease.

WARNING: This product can expose you to chemicals including Nickel, Lead & Tetrafluoroethylene which is known to the state of California to cause cancer. Lead and Nickel which are known to the state of California to cause birth defects or other reproductive harm. For more information, go to www.p65warnings.ca.gov.



   
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I.D. Min

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O.D. Min

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B903F072100 Yes 9 in 12 1/2 in 8.8600 in 8.8900 in 12.6100 in 12.6400 in
B903F068100 Yes 8 1/2 in 12 1/2 in 8.3600 in 8.3900 in 12.6100 in 12.6400 in
B903F080100 Yes 10 in 12 1/2 in 9.8600 in 9.8900 in 12.6100 in 12.6400 in
B903F076100 Yes 9 1/2 in 12 1/2 in 9.3600 in 9.3900 in 12.6100 in 12.6400 in
B903F088100 Yes 11 in 12 1/2 in 10.8600 in 10.8900 in 12.6100 in 12.6400 in
B903F092100 Yes 11 1/2 in 12 1/2 in 11.3600 in 11.3900 in 12.6100 in 12.6400 in
B903F084100 Yes 10 1/2 in 12 1/2 in 10.3600 in 10.3900 in 12.6100 in 12.6400 in
B903F084104 Yes 10 1/2 in 13 in 10.3600 in 10.3900 in 13.1100 in 13.1400 in
B903F092104 Yes 11 1/2 in 13 in 11.3600 in 11.3900 in 13.1100 in 13.1400 in
B903F088104 Yes 11 in 13 in 10.8600 in 10.8900 in 13.1100 in 13.1400 in
B903F076104 Yes 9 1/2 in 13 in 9.3600 in 9.3900 in 13.1100 in 13.1400 in
B903F080104 Yes 10 in 13 in 9.8600 in 9.8900 in 13.1100 in 13.1400 in
B903F096104 Yes 12 in 13 in 11.8600 in 11.8900 in 13.1100 in 13.1400 in
B903F068104 Yes 8 1/2 in 13 in 8.3600 in 8.3900 in 13.1100 in 13.1400 in
B903F072104 Yes 9 in 13 in 8.8600 in 8.8900 in 13.1100 in 13.1400 in
B903F060104 Yes 7 1/2 in 13 in 7.3600 in 7.3900 in 13.1100 in 13.1400 in
B903F064104 Yes 8 in 13 in 7.8600 in 7.8900 in 13.1100 in 13.1400 in
B903F052104 Yes 6 1/2 in 13 in 6.3600 in 6.3900 in 13.1100 in 13.1400 in
B903F056104 Yes 7 in 13 in 6.8600 in 6.8900 in 13.1100 in 13.1400 in
B903F048104 Yes 6 in 13 in 5.8600 in 5.8900 in 13.1100 in 13.1400 in
B903F064108 Yes 8 in 13 1/2 in 7.8600 in 7.8900 in 13.6100 in 13.6400 in
B903F060108 Yes 7 1/2 in 13 1/2 in 7.3600 in 7.3900 in 13.6100 in 13.6400 in
B903F072108 Yes 9 in 13 1/2 in 8.8600 in 8.8900 in 13.6100 in 13.6400 in
B903F068108 Yes 8 1/2 in 13 1/2 in 8.3600 in 8.3900 in 13.6100 in 13.6400 in
B903F096108 Yes 12 in 13 1/2 in 11.8600 in 11.8900 in 13.6100 in 13.6400 in
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