White Metal 4th Class

[WJ-4]
White Metal 3rd Class is good to use for a bearing for medium speed and medium weight, and is used for steam engine, roller, crusher, medium size electric motor, elevator, machine bearing and so on.
Composition of White Metal 4th Class [WJ-4]
Sn
Sb
Cu
Pb
Zn
As
Impurities
Pb
Fe
Zn
Al
Bi
As
Cu
rest
11.0~13.0
3.0~5.0
13.0~15.0
-
-
-
under
0.10
under
0.01
under
0.01
under
0.08
under
0.10
-
Physical and Mechanical Property of White Metal 4th Class [WJ-4]
Base Element
Freezing Temp.
℃
Specific Gravity
Hardness
BHN20℃
Tensile Strength
kg/?A
Elongation
%
Compressive Strength
kg/?A
0.125%
Fatigue Strength
kg/?A
(20000000)
Sn
217~380
7.70
28.9
8.46
1.2
3.90
-
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