Why the three types of cast irons are so different
If you've ever picked up a heavy skillet or looked at a manhole cover, you probably realized that the three types of cast irons are a lot more complex than they seem on the surface. People usually just call it "iron" and move on, but if you're actually making something or trying to fix a piece of machinery, you quickly learn that not all cast iron is created equal. It's a bit like wood; you wouldn't use balsa to build a house, and you wouldn't use white iron if you needed something to handle a lot of vibration. ...