Cast Iron?

SOD,

I think that may well be the reason Dave!!

Edited By Phil Whitley on 19/03/2022 17:09:23

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Doubltless true, Phil … for which I apologise.

But at least it’s step in the right direction, and quite brief.

… anyone seriously interested in the subject can soon find a “War & Peace” explanation.

MichaelG.

MichaleG I was trying to keep it simple, but you can learn all the basics from Tubal Cains Hardening, Tempering and heat treatment in the workshop practice series. You don't need to dive deep into mettalurgy to get the simple stuff right. The problem we have is that all forums like this one become stores of knowledge for future generations to learn from, and if innacurate or misleading information is allowed to be put up unchallenged, then that is what they will read and believe, untill that is they try to produce cast iron with coal!

Phil

When I was working I was required to visit foundries that supplied our company with castings, we used a lot of “cast iron” castings and a lot of stainless alloy castings, we were equipment suppliers to the food, pharmaceutical and petro chemical industries, the purpose of the visits were primarily to ascertain the quality systems employed in producing our castings. The cast iron foundries that I visited were very primitive and conditions were like something from the dark ages, these foundries were situated in the Birmingham area, no wonder it gained the name of the Black Country, the quality of castings was variable at best. The Stainless castings came from foundries that specialised in stainless and exotic alloys and these foundries were worlds apart from those producing cast iron, in some you could eat your dinner off the floor. I do realise that there are probably cast iron foundries that are vastly different to those that our company used but I was left with a lasting impression that cast iron was a dirty substance that could have many good and bad properties but however is still an important part of modern engineering structures. Dave W

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Duly noted, Phil … I already ‘stand corrected’

I am happy to leave it at that.

MichaelG.

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P.S. __ before I bow-out completely from this thread, I will just share this link, which comes from a better-respected source than my last :

https://www.metallics.org/pig-iron.html

Edited By Michael Gilligan on 19/03/2022 20:13:54

Fair enough Phil,it’s really the iron carbon phase equilibrium diagram, I just posted “steel” because when googled it showed the full diagram where cast iron started at just over 2%