Rail Shoulders (Cast-in Rail Shoulders)
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 ShoulderChemical composition(%) |
C: 3.60-3.80 |
C: 3.40-3.90 |
C: 3.50-3.60 |
|
C: 3.60-3.80 |
Mn: 0.2-0.5 |
Mn: ≤0.5 |
|
|
Si: 2.50-2.90 |
Si: 2.70-3.00 |
Si: 3.0-3.2 |
|
|
P: ≤0.08 |
P:≤0.07 |
P:≤0.07 |
|
|
S: ≤0.025 |
S: ≤0.03 |
S: ≤0.02 |
|
|
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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