Bronze Rods & Bars
Bearing Bronze Rod — C93200
The standard cast bearing bronze: good anti-friction behaviour, easy machining and tolerance of marginal lubrication.
Product overview
C93200 is requested as bearing bronze rod and tube blanks for bushing production. Provide the finished OD/ID and length to allow a sensible stock size to be proposed. Casting method (continuous or centrifugal) and available sizes are confirmed with the company.
C93200, widely known as SAE 660, is the most commonly specified cast bronze for plain bearings and bushings. Its microstructure of a tin-bronze matrix with dispersed lead gives it good embeddability and anti-seizing behaviour, and it machines very well.
It is available as sand castings and as continuous-cast or centrifugally cast bar and tube from which bushings are machined. Its strength is moderate, so very high loads, impact or severely corrosive service may call for other grades such as aluminum bronzes.
Material identification
| Item | Detail |
|---|---|
| UNS designation | C93200 |
| Material | High-Leaded Tin Bronze (SAE 660 Bearing Bronze) |
| Alloy family | Bearing Bronze |
| Alloy type | Cast copper-tin-lead-zinc alloy |
| Product form | Rod / Bar |
| Availability | Listed – sizes, tolerances and stock confirmed per inquiry |
Where it is used
- Plain bearings and bushings
- Thrust washers and wear rings
- Pump and machinery bearings
- Gear and slide components under moderate load
- General engineering wear parts
Machining and fabrication
Excellent machinability, among the best of the copper alloys. Typically supplied oversized from cast bar for finish machining. Not normally welded; consult before attempting repairs.
Forms and sizes
- Round rod / bar (solid)
- Hollow bar / tube blanks – subject to confirmation
- Square, hexagonal and flat bar – subject to confirmation
- Cut lengths and machined blanks – subject to confirmation
Available diameters, lengths, tolerances and tempers are not listed on this website and are confirmed per inquiry. Do not rely on this page for dimensions, tolerances or stock.
What to include in your inquiry
- UNS grade and governing specification
- Dimensions (or drawing) and tolerance class
- Quantity and delivery timing
- Application and operating environment
- Certificate / inspection requirements
Composition reference
| Element | Nominal limit, wt % |
|---|---|
| Copper (Cu) | 81.0 – 85.0 |
| Tin (Sn) | 6.3 – 7.5 |
| Lead (Pb) | 6.0 – 8.0 |
| Zinc (Zn) | 2.0 – 4.0 |
| Nickel (Ni, incl. Co) | 1.0 max |
| Iron (Fe) | 0.20 max |
| Antimony (Sb) | 0.35 max |
| Phosphorus (P) | 0.15 max |
| Sulfur (S) | 0.08 max |
Reference data only – typical or nominal values from published specifications, not a guarantee of supplied material. Confirm against the current edition of the applicable specification, the product form and condition, and the material test certificate. Technical review by the company is required before publication or reliance.
Commonly referenced specifications
- ASTM B505/B505M – continuous castings
- ASTM B584 – sand castings
- SAE 660 (trade designation)
Related grades
Frequently asked questions
Is C93200 the same as SAE 660?
Yes – SAE 660 is the common trade designation for UNS C93200.
Can C93200 be used for potable water?
No. It contains lead; lead-free alternatives such as C89833 are considered for that purpose, subject to the applicable drinking-water requirements.
Looking for C93200 rod?
Share your dimensions, quantity and documentation needs with our team.