SAE 64 bronze, also known as UNS C93700, is a
bronze alloy with a specific composition of copper, tin, and lead. Here
is more information about this alloy:

Typical Chemical Composition of SAE 64 Bronze (UNS C93700):

Brinell hardness between 55 – 70 HB

Tensile strength of 3400 kg/cm2

Elongation in 5.8 cm of 6%

SAE 64 bronze is recognized for its high strength, hardness, and
load-carrying capacity. It is a bronze alloy commonly used in
applications that require mechanical strength and
wear resistance, such as bearings, bushings, gears, and transmission components.

In addition to its strength, SAE 64 bronze also
offers good sliding and lubricating properties, making it
suitable for applications where low friction and
wear resistance are required, such as slide bearings.

The designation SAE 64 and UNS C93700 are used to identify and standardize this bronze alloy according to the standards and specifications of the Society of Automotive Engineers (SAE) and the UNS (Unified Numbering System) coding system. These designations facilitate communication and recognition of materials in different industries and applications.