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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.
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Item #

Stock
Item?

Nom
Size I.D

Nom
Size O.D.

I.D. Min

I.D. Max

O.D. Min

O.D. Max

B903F040072 N/A Yes N/A 5 in N/A 9 in N/A 4.8600 in N/A 4.8900 in N/A 9.1100 in N/A 9.1400 in
B903F040080 N/A Yes N/A 5 in N/A 10 in N/A 4.8600 in N/A 4.8900 in N/A 10.1100 in N/A 10.1400 in
B903F040084 N/A Yes N/A 5 in N/A 10 1/2 in N/A 4.8600 in N/A 4.8900 in N/A 10.6100 in N/A 10.6400 in
B903F040088 N/A Yes N/A 5 in N/A 11 in N/A 4.8600 in N/A 4.8900 in N/A 11.1100 in N/A 11.1400 in
B903F040092 N/A Yes N/A 5 in N/A 11 1/2 in N/A 4.8600 in N/A 4.8900 in N/A 11.6100 in N/A 11.6400 in
B903F040096 N/A Yes N/A 5 in N/A 12 in N/A 4.8600 in N/A 4.8900 in N/A 12.1100 in N/A 12.1400 in
B903F040100 N/A Yes N/A 5 in N/A 12 1/2 in N/A 4.8600 in N/A 4.8900 in N/A 12.6100 in N/A 12.6400 in
B903F044080 N/A Yes N/A 5 1/2 in N/A 10 in N/A 5.3600 in N/A 5.3900 in N/A 10.1100 in N/A 10.1400 in
B903F044084 N/A Yes N/A 5 1/2 in N/A 10 1/2 in N/A 5.3600 in N/A 5.3900 in N/A 10.6100 in N/A 10.6400 in
B903F044088 N/A Yes N/A 5 1/2 in N/A 11 in N/A 5.3600 in N/A 5.3900 in N/A 11.1100 in N/A 11.1400 in
B903F044092 N/A Yes N/A 5 1/2 in N/A 11 1/2 in N/A 5.3600 in N/A 5.3900 in N/A 11.6100 in N/A 11.6400 in
B903F044096 N/A Yes N/A 5 1/2 in N/A 12 in N/A 5.3600 in N/A 5.3900 in N/A 12.1100 in N/A 12.1400 in
B903F044100 N/A Yes N/A 5 1/2 in N/A 12 1/2 in N/A 5.3600 in N/A 5.3900 in N/A 12.6100 in N/A 12.6400 in
B903F048068 N/A Yes N/A 6 in N/A 8 1/2 in N/A 5.8600 in N/A 5.8900 in N/A 8.6100 in N/A 8.6400 in
B903F048072 N/A Yes N/A 6 in N/A 9 in N/A 5.8600 in N/A 5.8900 in N/A 9.1100 in N/A 9.1400 in
B903F048080 N/A Yes N/A 6 in N/A 10 in N/A 5.8600 in N/A 5.8900 in N/A 10.1100 in N/A 10.1400 in
B903F048084 N/A Yes N/A 6 in N/A 10 1/2 in N/A 5.8600 in N/A 5.8900 in N/A 10.6100 in N/A 10.6400 in
B903F048088 N/A Yes N/A 6 in N/A 11 in N/A 5.8600 in N/A 5.8900 in N/A 11.1100 in N/A 11.1400 in
B903F048092 N/A Yes N/A 6 in N/A 11 1/2 in N/A 5.8600 in N/A 5.8900 in N/A 11.6100 in N/A 11.6400 in
B903F048096 N/A Yes N/A 6 in N/A 12 in N/A 5.8600 in N/A 5.8900 in N/A 12.1100 in N/A 12.1400 in
B903F048100 N/A Yes N/A 6 in N/A 12 1/2 in N/A 5.8600 in N/A 5.8900 in N/A 12.6100 in N/A 12.6400 in
B903F048104 N/A Yes N/A 6 in N/A 13 in N/A 5.8600 in N/A 5.8900 in N/A 13.1100 in N/A 13.1400 in
B903F048112 N/A Yes N/A 6 in N/A 14 in N/A 5.8600 in N/A 5.8900 in N/A 14.1100 in N/A 14.1400 in
B903F052068 N/A Yes N/A 6 1/2 in N/A 8 1/2 in N/A 6.3600 in N/A 6.3900 in N/A 8.6100 in N/A 8.6400 in
B903F052076 N/A Yes N/A 6 1/2 in N/A 9 1/2 in N/A 6.3600 in N/A 6.3900 in N/A 9.6100 in N/A 9.6400 in
1 - 25 of 192 | Results Per Page | View | Unit of Measure
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