Material
EN-GJL-250 +
Graphite
Introduction
Solid lubricating bearings, made of casting iron EN-GJL-250 as base material,are produced by the process of being distributed special solid lubrication with certain angle and density. They are in conformity with the European RoHS environmental protection standards and widely used in the applications of mold, metallurgy and engineering machinery due to the advantages of lead free,
good self-lubricating,high working temperature and long life..
Chemical Composition%
|
Material
|
C
|
Si
|
Mn
|
Cr
|
Ni
|
Cu
|
Mo
|
S
|
P
|
Fe
|
|
42CrMo4
|
0.38-
0.45
|
0.17-
0.37
|
0.5-
0.8
|
0.9-
1.2
|
≤
0.03
|
≤0.03
|
0.15-0.25
|
≤0.35
|
≤0.35
|
Rest
|
Physical and Mechanical Properties
|
max. operating temperature Tmax
|
+400 ℃
|
|
min. operating temperature Tmin
|
-400 ℃
|
|
max. load p max
|
70 N/mm2
|
|
tensile strength
|
200 N/mm2
|
|
elongation
|
12 %
|
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