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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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B903F152160 Yes 19 in 20 in 18.8600 in 18.8900 in 20.1100 in 20.1400 in
B903F148160 Yes 18 1/2 in 20 in 18.3600 in 18.3900 in 20.1100 in 20.1400 in
B903F148156 Yes 18 1/2 in 19 1/2 in 18.3600 in 18.3900 in 19.6100 in 19.6400 in
B903F144160 Yes 18 in 20 in 17.8600 in 17.8900 in 20.1100 in 20.1400 in
B903F144156 Yes 18 in 19 1/2 in 17.8600 in 17.8900 in 19.6100 in 19.6400 in
B903F144152 Yes 18 in 19 in 17.8600 in 17.8900 in 19.1100 in 19.1400 in
B903F140160 Yes 17 1/2 in 20 in 17.3600 in 17.3900 in 20.1100 in 20.1400 in
B903F140156 Yes 17 1/2 in 19 1/2 in 17.3600 in 17.3900 in 19.6100 in 19.6400 in
B903F140152 Yes 17 1/2 in 19 in 17.3600 in 17.3900 in 19.1100 in 19.1400 in
B903F140148 Yes 17 1/2 in 18 1/2 in 17.3600 in 17.3900 in 18.6100 in 18.6400 in
B903F136156 Yes 17 in 19 1/2 in 16.8600 in 16.8900 in 19.6100 in 19.6400 in
B903F136152 Yes 17 in 19 in 16.8600 in 16.8900 in 19.1100 in 19.1400 in
B903F136148 Yes 17 in 18 1/2 in 16.8600 in 16.8900 in 18.6100 in 18.6400 in
B903F136144 Yes 17 in 18 in 16.8600 in 16.8900 in 18.1100 in 18.1400 in
B903F132156 Yes 16 1/2 in 19 1/2 in 16.3600 in 16.3900 in 19.6100 in 19.6400 in
B903F132152 Yes 16 1/2 in 19 in 16.3600 in 16.3900 in 19.1100 in 19.1400 in
B903F132148 Yes 16 1/2 in 18 1/2 in 16.3600 in 16.3900 in 18.6100 in 18.6400 in
B903F132144 Yes 16 1/2 in 18 in 16.3600 in 16.3900 in 18.1100 in 18.1400 in
B903F132140 Yes 16 1/2 in 17 1/2 in 16.3600 in 16.3900 in 17.6100 in 17.6400 in
B903F128152 Yes 16 in 19 in 15.8600 in 15.8900 in 19.1100 in 19.1400 in
B903F128148 Yes 16 in 18 1/2 in 15.8600 in 15.8900 in 18.6100 in 18.6400 in
B903F128144 Yes 16 in 18 in 15.8600 in 15.8900 in 18.1100 in 18.1400 in
B903F128140 Yes 16 in 17 1/2 in 15.8600 in 15.8900 in 17.6100 in 17.6400 in
B903F128136 Yes 16 in 17 in 15.8600 in 15.8900 in 17.1100 in 17.1400 in
B903F124148 Yes 15 1/2 in 18 1/2 in 15.3600 in 15.3900 in 18.6100 in 18.6400 in
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