Customization: | Available |
---|---|
Customized: | Customized |
Certification: | ISO14001, ISO9001 |
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Application
|
UIC54
|
UIC60
|
115RE, ,50kg rail, 60kg rail,
BS80lbs, BS100lbs, ect.
|
Name
|
QT500-7
|
QT450-10
|
QT400-15
|
Standard
|
GB 1348-88
|
GB 1348-88
|
GB 1348-89
|
Chemical
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
|