QT300-15
C:3.62
Si:2.4
Mn耐帮移粒蒸先:0.5
P:0.087
球铁化学成分 ％
牌 号 C Si Mn S P
QT400~18 球穿严村些目企怀布友硫政化前
球化后
3.6~4.1 0.9~1.2 ≤0.4 ≤0.05 ≤0行异义管准限角车换.07
3.5~4.0 仅确什纪2.6~3.2 ≤0.02
QT450~10 球化前
球化后
3.6~4.1 0.9~1.2 ≤0.4 ≤0.05 ≤0.07
3.5~3.9 2.5~3.0 ≤0.02
QT600~3 球化前
球化后
3.6~3.9 0.9~1.2 0.6~0.8 ≤0.05 ≤0.07
3.5~3.8 2.2~2.6 ≤0.02
QT700~2 球化前
球化后
3.6~3.9 0.9~1.2 0.6~0.8 ≤0.05 ≤0.07
3.5~3.8 2.1族创们儿均九今京~2.5 ≤0.02
