What is the carbon and silicon content of cast iron?
Cast iron contains a carbon percentage between 2 and 3.5 percent while silicon ranges from 1 to 3 percent depending on application needs.
Questions about Cast iron
Short answers, pulled from the story.
When was ductile cast iron developed and what makes it unique?
Engineers developed ductile cast iron in 1948 which features graphite shaped as tiny nodules with concentric layers forming spherical particles that stop crack progression unlike flake structures.
Where did the earliest cast-iron artifacts originate and when were they created?
Archaeologists discovered the earliest cast-iron artifacts dating to the 8th century BC in modern Luhe County Jiangsu during the Warring States period.
Why did the Chester and Holyhead Railway bridge collapse in May 1847?
The Dee bridge disaster caused excessive loading center beam passing train with badly designed trussing wrongly thought to reinforce structure leading to lower edge tension weakness.
How does silicon affect the formation of grey cast iron versus white cast iron?
Silicon acts as the most important alloyant after carbon because it forces carbon out of solution creating graphite flakes that result in grey cast iron or allows carbon to remain dissolved forming iron carbide known as cementite which produces white cast iron.