Blog High Lead Tin Bronze Material Profiles
November 30, 2020
By: Dave Olsen

Grade
- MetalTek 83-7-7-3 (C93200) (SAE 660) Bearing bronze
Description
- This standard cast bronze-bearing alloy is used widely for a great many applications.
Properties – Why select this material
- This alloy possesses good hardness, strength, and wear resistance.
- Excellent anti-frictional qualities
- Good casting properties.
- Readily machined, broached, or reamed.
Applications – Frequent uses
- Bushings for electric motor, cranes, and draglines
- Track roller bushings for crawler tractors
- Guide bushings for valves
- Main bearings for presses
- Many other wear applications
Grade
- MTEK 80-10-10 (C93700) (SAE 64) Bearing bronze
Description
- Bearing bronze possessing good strength and generally high mechanical properties.
Properties – Why select this material
- Resistance to mild acids.
- Excellent wear resistance under high speeds, heavy pressure, shock and vibration.
- Where lubrication is not excellent, but it requires a hardened steel shaft.
Applications – Frequent uses
- Steering knuckle bushings
- Rolling mill bushings
- Valve rocker arm bushings
- Trunnion Bearings
Grade
- MTEK 79-6-15 Hi Lead (C93900) Bearing bronze
Description
- Non-seizing bronze alloy often used where lubrication is doubtful.
Properties – Why select this material
- Bearing applications where moderate pressures and high speeds are prevalent.
- Applications where regular lubrication is difficult.
- Excellent anti-frictional properties and corrosion resistance to seawater, brine and certain concentrations of sulfuric acid, but only fair strength.
Applications – Frequent uses
- Diesel engine bearings
- Rolling mill bearings
- Kingpin bushings for earth moving equipment
- Seals and bushings for gasoline pumps
For guidance in selecting the appropriate high lead-tin bronze in your application, contact us.
Download Our Alloy Guide
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