Blog High Lead Tin Bronze Material Profiles

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.