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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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Item?

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Size I.D.

Nom
Size O.D.

I.D. Min

I.D. Max

O.D. Min

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O.D. Max
B903F052084 Yes 6 1/2 in 10 1/2 in 6.3600 in 6.3900 in 10.6100 in 10.6400 in
B903F056084 Yes 7 in 10 1/2 in 6.8600 in 6.8900 in 10.6100 in 10.6400 in
B903F060084 Yes 7 1/2 in 10 1/2 in 7.3600 in 7.3900 in 10.6100 in 10.6400 in
B903F064084 Yes 8 in 10 1/2 in 7.8600 in 7.8900 in 10.6100 in 10.6400 in
B903F068084 Yes 8 1/2 in 10 1/2 in 8.3600 in 8.3900 in 10.6100 in 10.6400 in
B903F072084 Yes 9 in 10 1/2 in 8.8600 in 8.8900 in 10.6100 in 10.6400 in
B903F076084 Yes 9 1/2 in 10 1/2 in 9.3600 in 9.3900 in 10.6100 in 10.6400 in
B903F040088 Yes 5 in 11 in 4.8600 in 4.8900 in 11.1100 in 11.1400 in
B903F044088 Yes 5 1/2 in 11 in 5.3600 in 5.3900 in 11.1100 in 11.1400 in
B903F048088 Yes 6 in 11 in 5.8600 in 5.8900 in 11.1100 in 11.1400 in
B903F052088 Yes 6 1/2 in 11 in 6.3600 in 6.3900 in 11.1100 in 11.1400 in
B903F056088 Yes 7 in 11 in 6.8600 in 6.8900 in 11.1100 in 11.1400 in
B903F060088 Yes 7 1/2 in 11 in 7.3600 in 7.3900 in 11.1100 in 11.1400 in
B903F064088 Yes 8 in 11 in 7.8600 in 7.8900 in 11.1100 in 11.1400 in
B903F068088 Yes 8 1/2 in 11 in 8.3600 in 8.3900 in 11.1100 in 11.1400 in
B903F072088 Yes 9 in 11 in 8.8600 in 8.8900 in 11.1100 in 11.1400 in
B903F076088 Yes 9 1/2 in 11 in 9.3600 in 9.3900 in 11.1100 in 11.1400 in
B903F080088 Yes 10 in 11 in 9.8600 in 9.8900 in 11.1100 in 11.1400 in
B903F040092 Yes 5 in 11 1/2 in 4.8600 in 4.8900 in 11.6100 in 11.6400 in
B903F044092 Yes 5 1/2 in 11 1/2 in 5.3600 in 5.3900 in 11.6100 in 11.6400 in
B903F048092 Yes 6 in 11 1/2 in 5.8600 in 5.8900 in 11.6100 in 11.6400 in
B903F052092 Yes 6 1/2 in 11 1/2 in 6.3600 in 6.3900 in 11.6100 in 11.6400 in
B903F056092 Yes 7 in 11 1/2 in 6.8600 in 6.8900 in 11.6100 in 11.6400 in
B903F060092 Yes 7 1/2 in 11 1/2 in 7.3600 in 7.3900 in 11.6100 in 11.6400 in
B903F064092 Yes 8 in 11 1/2 in 7.8600 in 7.8900 in 11.6100 in 11.6400 in
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