Rail Shoulders (Cast-in Rail Shoulders)
Application
|
UIC54
|
UIC60
|
115RE, 50kg Rail, 60kg Rail, BS80lbs, BS100lbs, ect.
|
Raw Material
|
QT500-7
|
QT450-10
|
QT400-15
|
Standard Reference
|
GB 1348-88
|
GB 1348-88
|
GB 1348-89
|
Rail Shoulder Chemical composition(%)
|
C:
|
C:
|
C:
|
C:
|
Mn:
|
Mn: ≤
|
Si:
|
Si:
|
Si:
|
P: ≤
|
P:≤
|
P:≤
|
S: ≤
|
S: ≤
|
S: ≤
|
Tensile Strength
|
≥500 Mpa
|
≥450 Mpa
|
≥400 Mpa
|
Yield Strength
|
≥320 Mpa
|
≥310 Mpa
|
≥250 Mpa
|
Elongation(%)
|
≥7
|
≥10
|
≥15
|
Hardness
|
170~230HB
|
160~210HB
|
130~180HB
|
Metallographic organization
|
Ferrite + Pearlite
|
Graphite + Ferrite + Pearlite
|
Ferrite
|
Surface
|
Plain, Hot Dip Galvanized, Sandblasting
|
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