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Question:

What is a graphite cast iron pipe?

What is a graphite cast iron pipe?

Answer:

Ordinary cast iron consists of gray cast iron and ductile iron, the difference is the carbon in cast iron (graphite) exist, graphite in gray cast iron is in the shape of flake, so the strength and toughness are poor; graphite in shape is spherical, with little on dissevered the matrix. So strong and toughness will be much better.
There is a graphite tube, but there is no graphite cast iron (if not ductile iron)
Ductile iron pipes are pipes made of ductile iron.
It should be the ductile iron pipe. You can check it again.

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