Talk:Gray iron

What does lead have to do with gray iron? Is it present or not? Does it affect the gray iron properties? 69.151.112.40 (talk) 02:37, 15 May 2008 (UTC)

Move

 * The following discussion is an archived discussion of a requested move. Please do not modify it. Subsequent comments should be made in a new section on the talk page. No further edits should be made to this section. 

The result of the move request was not done. Skomorokh, barbarian  10:35, 20 October 2009 (UTC)

Gray iron → Gray cast iron — More accurate and in more cohesive to other articles User:KVDP 12:10, 10 October 2009 (UTC)
 * Oppose. Common name. 199.125.109.96 (talk) 23:05, 10 October 2009 (UTC)
 * The above discussion is preserved as an archive of a requested move. Please do not modify it. Subsequent comments should be made in a new section on this talk page. No further edits should be made to this section.

Statement about solidification shrinkage
I added a tag due to statement "It experiences less solidification shrinkage than other cast irons". On the contrary, gray iron may experience more solidification shrinkage than ductile iron. Many foundries make ductile iron (ductile iron being in the family of cast irons) without risers at all by control of chemistry, inoculation, pouring temperature and chilling practice. There are some grades of gray iron which have negligible solidification shrinkage and others which may have as much as 3-4%. It depends on the carbon equivalent, eutectic cell size and other factors. Mfields1 (talk) 01:07, 20 November 2009 (UTC)


 * Ok, so find a ref that states that and correct the sentence. Until then, my Degarmo source states that in general gray iron shrinks less than other cast irons. Wizard191 (talk) 14:24, 20 November 2009 (UTC)


 * I've looked at Degarmo book again and it is actually that it shrinks less than other cast irons that don't form a graphite microstructure. I've corrected the text. Sorry about that. Wizard191 (talk) 01:23, 21 November 2009 (UTC)

This article consist one line which qotes that"fast cooling rate forms ferritic matrix". But Callister's material science and engineering book reads contrary. I believe you must clarify this. Leonardo di ser piero da vinci dead (talk) 06:14, 15 April 2018 (UTC)

Meehanite
The "see also" on Meehanite isn't accurate as Meehanite Corporation has many designated grades of irons in the cast iron family inclusing ductile irons, heat resistant irons and wear resistant irons among other grades. It is also a trademark. Mfields1 (talk) 02:24, 25 November 2009 (UTC)


 * Feel free to do whatever you feel is necessary to fix it. Wizard191 (talk) 13:55, 25 November 2009 (UTC)

Move request
On the move request, the editor suggested moving the article to Gray Cast iron, but it seem more appropriate to move it to Grey Iron as this name is more international, less Americanized. Mfields1 (talk) 02:29, 25 November 2009 (UTC)


 * Per WP:RETAIN the article should remain named as is. A quick search of the move logs shows that it has never been moved, so it should remain at this name. Wizard191 (talk) 13:53, 25 November 2009 (UTC)

Advantages and Disadvantages - Weldability
Concerning the weldability of cast iron, I have heard from many experienced welders that cast iron is a challenge to weld. Consider the following article: http://www.lincolnelectric.com/knowledge/articles/content/castironpreheat.asp It states that cast iron is "difficult, but not impossible, to weld." 24.56.4.37 (talk) 04:03, 15 June 2010 (UTC)


 * That's a good ref. If you want to correct the text and add that ref, it would be much appreciated. Wizard191 (talk) 12:11, 15 June 2010 (UTC)

Properly welded, the surrounding area should be pre heated to slow down the cooling rate of the weld. There is high risk of forming martensite from the rapid cooling or induce thermal stresses from uneven cooling which can cause the weld to crack (Cast Irons, ASM International). Not nearly as easy to weld as steel. Calling it easy or challenging to weld is a bit subjective any ways. — Preceding unsigned comment added by 71.13.131.190 (talk) 22:30, 12 November 2013 (UTC)

Reference 7
Reference 7 (the reference for the tables) does not link to an outside site. It just stays on the wiki page,
 * It's meant to. It goes to the book reference that the page citation refers to. There might be lots of citations to different pages, but they don't all need to re-state the publisher and stuff. Andy Dingley (talk) 19:33, 22 October 2015 (UTC)

Gray or Grey?
The terms are used interchangeably in the text; probably best to pick one and only mention the other once. 150.252.244.6 (talk) 20:23, 9 June 2023 (UTC)