Carbon Equivalent (CE) of Cast Iron - How Much Effect on Tensile?

[MTUMetEng99]

How much effect does carbon equivalent have on the tensile properties, ultimate tensile and Young's modulus in particular, of gray and ductile iron?
I have read in one paper that for hypoeutectic gray irons (CE of 4.30 or less) tensile strength increases approximately 18.5 MPa for every 0.1% drop in CE. Can anyone substantiate this? Does this hold true for ductile iron as well?
What about Young's modulus? Again, I have read that the modulus of gray iron has a linear relationship with CE, but can somebody quantify this? If I vary my CE between, say, 4.0 and 4.3, am I going to see a noticeable change?
Does this also hold true for ductile iron?
Thanks,
BergiusMaximus

 

[metengr]

Here are two reputable sources on this subject for starters;

for gray cast iron

http://www.ironcasting.org/Gray Iron - A Unique Material.htm

for ductile iron

http://www.ductile.org/didata/Section7/7intro.htm#Hardenability

 

[unclesyd]

There is a older very good handbook on the properties of Gray Iron. The book is "Gray Iron Castings Handbook" by CF Walton published by the Gray and Ductile Iron Founders' Society.

You can use the World Cat site to find it in a library near you.

http://www.worldcatlibraries.org/wcpa/top3mset/11549263

The information you requested is in Chapter V, part 1