SAE660 Bronze
SAE 660 Bronze or C93200 as it also commonly known is a high leaded tin/ bearing Bronze.
SAE 660 is one of the most widely used alloys on the Bronze range, mainly due to its versatility as a medium range Bronze that make it suitable for many applications.
This Bronze has good hardness and strength qualities as well as good wear resistance, it also has excellent machining properties and antifriction qualities.
SAE 660 will not be subject to dezincification and provides a reasonable amount of resistance to sea water and brine that make is suitable for pump and valve components but not as must as PB1 Phosphor Bronze.
It is also suitable for application such as bearings as well as bushings that are under medium loads and speed while using adequate lubrication.
Chemical ComPOSTTTION of SAE 660
CU
Pb
Sn
Ni
Zn
P
Min
81.0
6.0
6.3
2.0
Max
85.0
8.0
7.5
1.00
4.0
trace
Mechanical Properties of SAE 660
Manufacturing
Process
Tensile
Strength
MPa
Yield Strength
0.2%
MPa
Elongation
%
Hardness
range
HB
Continuous
Cast
240
140
10
65
Centrifugal
Cast
205
95
15
65
Physical Properties of SAE 660
Thermal Conductivity BTU/ (sq ft-ft-hr-°C)
Specific Heat BTU/lb/oF @ 20°C
Thermal Expansion Per °C from 20°C to 200°C
Density lb/cu in @ 20°C
Electrical Conductivity* (Annealed) % IACS @ 20°C
Modulus of Elasticity KSI
33.6
.09
.000010
.322
12
14,500
SAE 660 Bronze
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