High-Leaded Tin Bronze
Overview
C93700 is a high-leaded tin bronze that provides superior anti-friction properties and excellent machinability. The higher lead content makes it ideal for applications where conformability and embeddability are critical.
As a C93700 high-leaded tin bronzesupplier, Triton Bronze & Metals stocks continuous cast bronze in round bar, hollow bar, castings — all cut to length and shipped from US mills. Every order ships with a mill test report available upon request.
Chemical Composition — C93700
| Element | Content |
|---|---|
| Copper (Cu) | 78-82% |
| Tin (Sn) | 9-11% |
| Lead (Pb) | 8-11% |
| Zinc (Zn) | 0.8% max |
| Iron (Fe) | 0.15% max |
| Antimony (Sb) | 0.50% max |
| Nickel (Ni) | 0.50% max |
| Phosphorus (P) | 0.15% max |
| Sulfur (S) | 0.08% max |
Mechanical Properties
Physical Properties
| Property | Value |
|---|---|
| Density | 0.327 lb/in³ (9.05 g/cm³) |
| Melting Range | 1510-1790°F (821-977°C) |
| Modulus of Elasticity | 14,000 ksi (96.5 GPa) |
| Thermal Conductivity | 28.1 BTU/ft·hr·°F (48.6 W/m·K) |
| Coefficient of Thermal Expansion | 10.0 × 10⁻⁶ /°F (18.0 × 10⁻⁶ /°C) |
| Electrical Conductivity | 10% IACS |
Applicable Specifications
- ✓ASTM B505 (Continuous Cast)
- ✓ASTM B271 (Centrifugal Cast)
- ✓ASTM B584 (Sand Cast)
- ✓SAE J461 / J462
Fabrication & Joining
| Process | Rating |
|---|---|
| Soldering | Excellent |
| Brazing | Good |
| Oxyacetylene Welding | Not Recommended |
| Arc Welding | Not Recommended |
Common Applications
- •Heavy-duty bearings
- •Pump bodies and impellers
- •Piston rings
- •Valve components
- •Railroad applications
Frequently Asked Questions
What forms is C93700 High-Leaded Tin Bronze available in?+
We supply C93700 in Round Bar, Hollow Bar, Castings. All material is sourced from US mills, cut to length, and shipped directly to your facility.
What are the typical applications for C93700?+
C93700 is commonly used for heavy-duty bearings, pump bodies and impellers, piston rings, valve components. Contact us for application-specific recommendations.
Can I get a mill test report for C93700?+
Yes. Mill test reports (MTRs) are available upon request for all C93700 orders. We can also provide material certifications to meet your quality requirements.
Is C93700 available as continuous cast bronze?+
Yes. C93700 is produced via the continuous casting process, which delivers a dense, uniform grain structure with excellent mechanical properties. Continuous cast bronze provides tighter tolerances and better surface finish than sand castings.
Dimensional Tolerances
For standard finishing allowances, diameter tolerances, and concentricity data for continuous cast bronze products, see our tolerance reference.
View Tolerances & Finishing Allowances →Need Finished Parts?
We supply C93700 as ready-to-install bronze bushings, bearings, thrust washers, and wear plates — from stock or made to order.
View Finished Parts & Components →Available Forms
- Round Bar
- Hollow Bar
- Castings
Need C93700?
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