Cast iron front axle support is an important
iron part for lawn tractors and small agricultural machines. The
followings are introduction to their materials, production
process, main defect problems and casting prices.
Ductile Iron Material
The most suitable cast iron materials for cast iron lawn tractor
front axles, should be ductile iron ASTM A536 Class 60-40-18,
65-45-12, 70-50-05, 80-55-06 in USA, or DIN 1693 GGG40 and GGG50
in Germany. In China, their equivalent grades will be ductile
iron QT400-15, QT400-18, QT450-10 and QT500-7.